BMW Einzylinder-Forum

TERMINE und FORUMSTECHNIK => International discussion forum in english language => Thema gestartet von: grahamjb am 01 Oktober 2017, 06:42:07

Titel: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 Oktober 2017, 06:42:07
Hi Guys
I have been reading through this forum and hopefully will be able to share my 1958 R26 restoration when I work out how to post images.

My R26 has been rebuilt before, has some dodgy frame repairs and is worn out so it will be a learning curve for me to restore it back to good working condition.

Is there any information on this forum on shock absorber rebuilding and frame dimensions?

Thanks
Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 01 Oktober 2017, 08:02:38
Hi Graham and welcome.

Looking forward to hearing your story.

I am just completing the rebuild of my R26 but I don't have any frame dimensions.
When you ask about suspension do you mean the damper cartridge?

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 Oktober 2017, 08:26:43
Gidday Brian
Thank you for the welcome and your restoration is excellent, you must be pretty pleased with how your bike looks, you have done a fantastic job.

In answer to your question, yes, I was referring to the damper cartridge. Mine have leaked most of he oil out and I am hoping that there is a repair/rebuild kit available or a list of seals that can be used.

Cheers
Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 01 Oktober 2017, 09:40:20
I  did attempt rebuilding my dampers but gave up and bought some new ones as the rods were badly pitted. I have read that some people have had some success though.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 01 Oktober 2017, 10:07:59
Hi Graham,
a warm welcome to down under!

posting pictures isn't that difficult:
* just click on "Anhänge und andere Optionen" (attachments and other options) below the text entry field
* then click on the button "Durchsuchen"(browse) below "Datei anhängen" and select the file with the picture you want to upload
* if you want to upload more than 1 picture (up to 6 are allowed ) just click on "mehr Dateianhänge" (more attachments) and proceed as before

note:
- the maximum size per file/picture is 1Mb
- all files uploaded to this forum must have a unique name; i.e. your upload will not be accepted if the filename already exists here.

cheers from Bavaria
Hubi
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: berndr253 am 01 Oktober 2017, 12:11:15
Graham,
if I remember right you can add pictures to your messages after you have written more than 4 or 5 posts.

Bernd
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Karl am 01 Oktober 2017, 12:28:47
Zitat von: Borgward am 01 Oktober 2017, 10:07:59
posting pictures isn't that difficult:
* just click on "Anhänge und andere Optionen" (attachments and other options) below the text entry field [...]

Welcome to our forum, Graham  :applaus:

In case you want to change the forum-language (navigation-bars, buttons, ...) to "english", please click on "PROFIL" (upper navigation bar), then on "BENUTZERKONTO" (left navigation bar).
You will see a title "BEVORZUGTE SPRACHE" (preferred language). Click on the dropdown-menu and choose "ENGLISH".

Kind regards,
Karl
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 01 Oktober 2017, 14:34:44
Graham I stole this from another forum.

================
Hello David and all,
        I have a R26 and have resotered all 4 shocks.

The top is a threaded "plug" that acts as the top and gasket holder all in one, once you unscrew the top you can pull out all the insides, wash and inspect them. You will find one conical spring above the piston and one cyclindrical spring below it. At the bottom end of the inside tube you will find a valve with a conical spring on top and a cylindrical spring below. All conical springs are identical. Two sizes of cylindrical springs. I had to have all of these springs made for me, I could not find them at any shop. I also had the main springs made for the front shocks. The sealing "O" rings and top gasket I bought at a industrial gasket shop (common off the shelf items). One of the pistons was cracked, I had a new one made by a machinist (lathe operator). I purchased shock absorber liquid, filled them and closed them.  The 4 shock absorbers work perfectly. Please not that the bike will not be raced nor driven wildly cross-country, it will be looked after. I live in Argentina and tu purchase any spares or new parts out of the country is usually prohibitivly expensive (as was the case of new shocks or cartriges), we earn low salaries and also a disvantageous exchange rate. so in Argentina it is relatively easy to find someone that can make spare parts at a very reasanable price. Make sure you put new rubber "bumpers" on the rod between the top holder and the cartrige so the piston will not hit the valve a the bottom when the shock is "bottomed out".

If you or any one is interrested in more about this re-doing, just let me know.

Cheers
Geoffrey
Argentina.
============

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 Oktober 2017, 03:59:11
Thank you to all who have welcomed me to this forum and advised how to upload photos, it is appreciated  :)

Brian, can you please PM or email me with the contact details for Geoffrey in Argentina.

Can someone please advise if the steering friction damper bracket should be at the angle shown or should it line up with the centre line of the frame - see photo below.

I have also attached a couple of photos showing the poor welding frame repair found hidden under body filler near where the kick starter rubber attaches to the frame.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 02 Oktober 2017, 09:51:37
in line....both brackets
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 Oktober 2017, 10:40:26
Thanks Rolf, being in line makes good engineering sense

Cheers
Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 02 Oktober 2017, 10:53:46
w.r.t. the poor welding:
it's a kind of rated break point  ;D caused by the kick starter and /or the main stand. There are several approaches for a professional repair desribed in this forum. (keyword: "Rahmenbruch")  :schrauber:

cheers
Hubi
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: cledrera am 02 Oktober 2017, 18:08:07
G`Day Graham,
welcome to the forum of the Dags.  ;)
I`ll think you are the first member from Australia.  :prost:
Now we need an antarctic forumsmember an the long way around is completed.

Bye

Clemens
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 02 Oktober 2017, 19:37:43
Graham,

a warm welcome here.

Anyway does anybody know what is with Kiwi-Kai from New-Zealand?


Heiko

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 02 Oktober 2017, 20:45:55
No...leider...der war mal bei mir vor geraumer Zeit...dann noch PM's....dann Funkstille
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 Oktober 2017, 04:27:50
Hubi - that makes sense because the frame has been squashed where the kick start rubber is fastened to the frame. I am having trouble finding any post that shows the preferred repair and will file down the welding and fill the squashed section of the frame with some bronze.

Heiko - Google tells me that Kiwi-Kai is a food store in New Zealand, does that answer your question?

Rolf - I don't fully understand your post and google translator doesn't make any sense.

Cheers
Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 03 Oktober 2017, 09:44:56
Hey Graham, a warm welcome in this outstanding international community!

Here is a link describing the "pipe-in-pipe" method:

Sascha's repair (http://bmw-einzylinder.de/forum/index.php?topic=16064.msg222344#msg222344)

and here the method inserting some flat iron is described:

Krauthahn's repair (http://bmw-einzylinder.de/forum/index.php?topic=10877.msg147353#msg147353)

search-term in google: "rahmenbruch site:bmw-einzylinder.de"

My big respect that you will rework it and not just replace. Good luck, a lot of fun and keep it up!

with best regards,

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 03 Oktober 2017, 10:28:49
and here is another approach by cutting off and replacing a small piece (45mm) of the frame:
http://bmw-einzylinder.de/forum/index.php?topic=8724.msg114075#msg114033 (http://bmw-einzylinder.de/forum/index.php?topic=8724.msg114075#msg114033)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 Oktober 2017, 10:57:20
Thanks for the frame repair links OldsCool! and Borgward; it seems that these frames suffer from metal fatigue especially around where the engine mounting bolts go through the frame. I will examine my frame carefully and strengthen/repair if required. Luckily I have pretty good welding skills from restoring Vintage cars so it should not be a difficult job to do  :)

Where is the best place to buy restoration parts from such as bearings, frame rubbers, gaskets, engine and gearbox parts etc?

Thanks
Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 03 Oktober 2017, 13:06:42
Zitat von: grahamjb am 03 Oktober 2017, 04:27:50

Heiko - Google tells me that Kiwi-Kai is a food store in New Zealand, does that answer your question?

Rolf - I don't fully understand your post and google translator doesn't make any sense.


Kiwi–Kai normally is a member of this Forum over 15 years now. He visited Rolf a few years ago but he wasnˋt present her after his journey to Gemany when i remember well.

Anyway glad to have a member here from Down Under now.  ;)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 03 Oktober 2017, 13:13:58
That was the translation of my threat ;D....not interesting for you.,...I think.....AND: no sense is normal for my threats ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 03 Oktober 2017, 13:25:10
b.t.w.

https://www.deepl.com/translator

is a much better translator than Google - check it out
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 03 Oktober 2017, 13:37:22
regarding your question about spare part retailers you will get almost everything for your R26 from either one of the four main suppliers in Germany:

Ulis Motorradladen
http://www.ulismotorradladen.de/

Rabenbauer
http://www.rabenbauer.com/

Stemler
http://www.motorrad-stemler.de/

Omega Oldtimer
http://www.omega-oldtimer.de/
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 Oktober 2017, 14:46:53
Great parts links
Thank you Borgward
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Bency71 am 11 Oktober 2017, 15:13:48
Welcome. I have also bought a lot of things for my F650GS Dakar from this online-shop: https://www.motorcycleparts-hornig.com/BMW-F650-GS-F-700-GS-and-F-800-GS/
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 13 Oktober 2017, 06:23:58
....but here it is an R 26 and not a F 650GS.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 24 Oktober 2017, 11:51:07
Brian
I read in one of your posts that you have fitted the sidecar rated springs to the rear of your bike. Can you please advise if possible how they compare to the original springs whilst riding.

I am thinking of doing the same as I weigh 110Kg and I feel that some beefier springs might be advantageous.

Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 24 Oktober 2017, 15:04:45
Zitat von: grahamjb am 24 Oktober 2017, 11:51:07
Brian
I read in one of your posts that you have fitted the sidecar rated springs to the rear of your bike. Can you please advise if possible how they compare to the original springs whilst riding.

I am thinking of doing the same as I weigh 110Kg and I feel that some beefier springs might be advantageous.

Graham

Hi Graham

Not having ridden it with the standard springs I can't make a proper comparison but the ride on the bike seems good with no bottoming out of the rear and not too harsh either.

I hope this helps

Brian
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 25 Oktober 2017, 16:06:11
Thanks Brian
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 November 2017, 08:15:58
Haven't been doing much on the bike lately due to being away on holidays

However I have made a front shock absorber compressor by copying Brian's (from England) design - mine is not as fancy as Brians but does the job.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 03 November 2017, 08:21:30
Zitat von: grahamjb am 03 November 2017, 08:15:58
Haven't been doing much on the bike lately due to being away on holidays

However I have made a front shock absorber compressor by copying Brian's (from England) design - mine is not as fancy as Brians but does the job.
:)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 06 Dezember 2017, 08:06:32
Have removed the rear swing arm and surprised to find that a sleeve is fitted to take the swingarm bearing cups and the cups are not fully pressed home. (they are approximately 3mm from being pressed all of the way in.

Is the sleeve and bearing cup position on these bikes standard?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 06 Dezember 2017, 10:05:24
As far as I remember - Yes.
Gives you the chance to grab it with an (inside)extractor
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 06 Dezember 2017, 10:08:15
Confirmed! It's meant like that.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 06 Dezember 2017, 10:29:19
There is a grease cap under the bearing, part 23 in this diagram.

http://www.realoem.com/bmw/enUS/showparts?id=0T14-EUR-04-1958-T26-BMW-R26&diagId=33_0986

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: cledrera am 06 Dezember 2017, 17:46:13
Graham,
by the way. Do you know this downloads:
ETL R26 (http://www.bmw-einzylinder.de/Start/tips/handbuecher/motorrad/ETL_R26_08-1959.pdf)
:schrauber:-Manual (http://www.bmw-einzylinder.de/Start/tips/handbuecher/anleitung/r26_27-reparatur.pdf)

Clemens
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 07 Dezember 2017, 08:51:25
Thanks for the replies fellas - pity the exploded view of the swing arm shows a roller bearing instead of the taper roller ones that are fitted to mine.

And yes Clemens, I do have that download link.

Time to get the welder out to remove the bearing cup  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 08 Dezember 2017, 02:27:06
A fair bit of wear on the rear swing pivot bolts and bearing sleeves
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 17 Dezember 2017, 10:03:24
Noticed some stress cracks on the left hand rear shock support that I will have to weld up
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Dezember 2017, 14:32:19
Did some sandblasting today and what a mess the tin work is......the Tank, Mudguards and Side plates had all been repaired with body filler.
I have a lot of work in front of me to repair the poor tin work repairs

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Dezember 2017, 14:38:25
More Photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Dezember 2017, 14:49:39
Last few photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 21 Dezember 2017, 11:24:30
Wow.... looks like an "Expert" was at work  :kotz:

How thick must the filler have been  :o

Good to know you'll fix it properly  :schrauber:

Best regards,

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 21 Dezember 2017, 14:15:13
Definitely a few challenges ahead of me Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 Januar 2018, 07:25:43
Had a go at fixing the battery cover
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 Januar 2018, 07:31:24
Removed the original inside part of the cover that had another piece welded over it and then did some hammer and file work to get it looking half decent. A bit of work with the TIG and skim coat of filler and it is looking like it should



Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 Januar 2018, 07:45:18
Noticed I had one old style shock absorber aluminium cover nut and the other one was a newer profile. Decided to put the old one in the lathe and see if I could reshape it to the newer profile as well as polish it up because it had quite a few gouge marks and was looking rough.

It turned (no pun intended) out quite ok
The old profile is the cap on the left and the new profile is the cap on the right in the bottom photo
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 Januar 2018, 07:51:03
It is too hot to work in my shed (another 34 degree day) so it is time to have a few ice cold beers.

Can anyone tell me what make of carby is in the photos - this is what is fitted to my R26 and there are no identification markings on it.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 02 Januar 2018, 22:08:07
Hi Graham,

impressive work on the battery cover!!  :applaus:

The carb looks like a "Blitz". It is a typical replacement for the original "Bing"s but has no good reputation.

BR

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 Januar 2018, 11:39:32
Thanks for the reply Steffen, I will see if I can locate a Bing at a reasonable price if this carby doesn't run very well.

I have another problem which is how do you remove the shock absorber cartridge from the bottom unit - I cannot budge the front or rear ones even after heating  them up. Any tricks or ideas will be graciously tried.

The first photo shows a previous repair where the top of the shock cartridge has been folded over and the second photo shows the shock cartridge in it base as I call it. How do I remove the shock cartridge?

Cheers
GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 05 Januar 2018, 11:04:32
Had another go at the two stubborn shock units today. Have left the front one soaking in a penetrating oil and decided to cut the shock cartridge off on the other one because it was beyond a rebuild. I then cut two slots in what was left and used a big cold chisel as a screwdriver to remove it  :) See photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 06 Januar 2018, 06:06:29
Finally had success disassembling the front shock absorbers

Had to use a lot more heat than I thought was reasonable and both shock cartridges were held in tight by a rust coloured powdered substance. You can see the powdery substance in the photos below.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 06 Januar 2018, 06:19:41
Have to do some aluminium polishing to remove the scoring on the covers and one cover has a thin coat of body filler for me to fix!
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 06 Januar 2018, 18:38:16
Hi Graham

When you reassemble the shocks use plenty of coppaslip on the threads.
Keep the old cartridge, clean it up and gri d a groove along the threaded part and it can make a good tap to clean the thread in the alloy casting.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 07 Januar 2018, 04:55:15
Thanks for the tip on using the old cartridge as a tap Brian and I will be using Alminox on the threads which is designed to prevent electrolysis between dissimilar metals.

Everything I touch on this bike is stuffed - I cleaned the shock springs and was surprised to find one of the front springs welded in two places. It is horribly out of square resulting in squaring of some sections of the spring coil internally and externally as well. This is the spring where there was a lot of scoring of the inner and outer covers which makes sense due to the condition of the spring. The lower shock body that the cartridge for this spring has also been worn at the base with the silent block wearing out due to the uneven spring forces. The worn out silent block allowed the shock to press against the mounting bolt nut and washers resulting in deep grooving at the bottom that I will have to repair with the Tig

The other front spring is not square on the end nor are the two rear springs which are also worn internally with squaring inside the coils.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 07 Januar 2018, 05:39:22
More photos showing spring wear
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 07 Januar 2018, 09:51:17
It's a journey. :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 07 Januar 2018, 09:57:45
Unbelievable  :-X

Thanks for sharing with nice pictures Graham! Keep it up!

BR

Steffen 
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 09 Januar 2018, 09:43:48
Have been cleaning more parts and have cleaned up the rear shock absorber carriers and given them a coat of paint which dried as I applied it in todays 38 degree heat (I came inside when it got to 43 degrees in my shed). Also put the corroded steering damper on the linisher to clean it up and now I am going to see if it will take some nickle from my little nickle plating setup.

The attached photos are the rear shock absorber carriers with a coat of paint and the steering damper before cleaning it up with the linisher......you will have to wait to see if my nickle plating is successful  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 09 Januar 2018, 09:50:45
ARGH....photo posting - why do the posted photos get rotated ?  I will try again! :kopfhau:

Nope, photos are still rotated so you will have to rotate your screens
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 10 Januar 2018, 13:37:30
Nickle plating update
I am going to have to remove all of the old chrome from the handle to make it look ok so stay tuned for the next attempt.

The photos below are acid cleaning the damper handle and shaft, damper in the nickle solution, nickled shaft came up ok but the damper handle looks crappy.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 10 Januar 2018, 13:42:56
Also pressed in some new silent blocks into the rear shock carriers today and started panel beating the battery holder base to fit the cover shape.

Photos below are of old and new silent blocks in the rear shock carrier and the battery holder base before and after some light manipulation
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 11 Januar 2018, 15:17:33
Didn't get much done on the bike today in between golf and other jobs but I did manage to have another go at the steering damper. I removed the few remaining spots of chrome and re-nickle plated it. I haven't finished polishing up the shaft or the bottom half of the damper but the top is looking nice. Always nice when you can do things yourself.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 11 Januar 2018, 15:33:50
Zitat von: grahamjb am 11 Januar 2018, 15:17:33
Didn't get much done on the bike today in between golf and other jobs but I did manage to have another go at the steering damper. I removed the few remaining spots of chrome and re-nickle plated it. I haven't finished polishing up the shaft or the bottom half of the damper but the top is looking nice. Always nice when you can do things yourself.

Looks very nice and a job well done.  :applaus:

What are the drawings in the background?

Brian
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 12 Januar 2018, 14:11:15
Brian - The plans are Bad Bob Motors Sedan & Coupe which are plans for toy cars for kids available from www.toymakingplans.com

The attached picture is of "Bad Bob Sedan" which I have just cut out...timber is Tasmanian Oak, Jarrah and Pine.

Spent more time cleaning up bits and pieces on the bike today, fixed a dent in the rear rim, removed the tyres from the rims and polished up the front top shock absorber holders (seen sitting on top of the rim) and then gave the shed a bit of a clean.

Am having some unexpected issues with the nickle plating resulting in black spots appearing at the edges of the damper handle.

It is going to be 37 degrees tomorrow so I won't be working on the bike.......going surfing instead  ;D

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 Januar 2018, 07:40:14
Back from the beach after getting dumped by big waves so I thought I would see how long I could stay in my shed where the temperature was reading 43 degrees.....lasted long enough to remove the gap on my lathe bed and check that I will be able to skim the brake drum on the wheels; see photo below.

Off to have some cold beer now  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 14 Januar 2018, 10:32:50
Still need to finish off the welds
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 14 Januar 2018, 10:38:57
Stop Plate wear before TIG welding and can someone tell me what the bracket is for in the last photo. I have had to weld up a fatigue crack and some elongated holes on this bracket and cannot remember where it fits on the bike
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 14 Januar 2018, 10:40:50
Zitat von: grahamjb am 14 Januar 2018, 10:38:57
Stop Plate wear before TIG welding
Bracket goes here.

https://goo.gl/photos/QHTNmDE36HXeFQ2h6

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 14 Januar 2018, 10:43:55
Thanks Brian, that was quick  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 15 Januar 2018, 11:27:00
Filed down the TIG welds and polished up the shock carriers as well as turning down the TIG welds on the stop plates
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 15 Januar 2018, 19:38:41
Graham,

this looks (I won't say the f-word in public) awesome!!! Probably better than ever before.  :respekt: I seriously feel now I must also waste some time to polish the one or the other thing on my bike. Winter is coming soon  ;)

Honest congrats from the African bush
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 16 Januar 2018, 05:33:00
Thanks Tom, I still have to repair the Aluminium shock covers and polish them but I am going to tackle the wheels next

GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 16 Januar 2018, 08:54:48
Have decided to respoke the wheels and polish up the rims and hubs. Brian from England has provided me with good advice and as a result I had a closer look at the rims today after golf and one is spoked correctly and one isn't!

The photos below are self explanatory
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 16 Januar 2018, 08:57:38
More photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 Januar 2018, 11:23:07
A slow day on the bike today with no pictures to show.

Still polishing the hubs and counting the number of radial cracks on the rims near the spokes that I will have to weld up. Also started to grind down the welds on the front mudguard....

GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 18 Januar 2018, 12:18:47
Technical correction.

Brian is in Wales not England.

:)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 Januar 2018, 15:27:58
Yikes, sorry about that Brian
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Januar 2018, 04:35:35
It is too hot to work in my shed so I am going to the beach for a surf

I did manage to make this "hi tech" bracket for the Earles Fork this morning so that I can use it to true the wheels when I re-spoke them

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Januar 2018, 07:54:55
Back from the beach because there are no waves today so I did some more work on the hubs
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 Januar 2018, 13:48:45
Too hot to work in the shed today so I went for a ride to Jurien Bay which is a small fishing town 222km north of Perth with a mate for lunch and to check out a huge private collection of Vincent, Dougless, Rudge Whitworth, Royal Enfield, Norton and BSA motorcycles. The owner has one of every model Vincent ever made!

I could only spot one BMW and that is in the photo behind me.

More about this lovely collection of motorbikes here https://carpyscaferacers.com/amazing-collection-vincents/

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 25 Januar 2018, 13:29:10
Still cleaning the hubs and rims and getting one rim ready for welding the radial cracks near the spoke holes....have got 17 to weld up.

A couple of photos showing the small radial cracks attached below

There won't be an update for a week or so because the wife wants to go away for a weeks holiday


Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 25 Januar 2018, 14:44:43
Those cracks are worrying, well spotted.

Brian
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Kurt in S.A. am 25 Januar 2018, 20:16:45
Wouldn't cracks across the rim be more of a concern than these?  What are the forces that are driving these cracks?  Over tightening of the spokes?

Kurt
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 Januar 2018, 11:36:53
These cracks will increase in length if not welded and yes Kurt, I reckon they are because the spokes were too tight.

It is Australia day here in Western Australia which means a fair bit of eating and drinking with not much work being done, however I managed to get a bit done on the bike.

Started to weld up the cracks on the inside of the rim before doing the face side of the rim to relieve some of the stress in the Al - the photos below are typical of the welds before dressing.

Decided to remove the wheel bearings and as you can see from the photo the holes on the retaining plate have been butchered previously. I made up a simple tool that located in the four holes to make removal of the retaining plate easy.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 Januar 2018, 11:41:21
When I removed the retaining plate the nearside bearing collapsed which was unexpected.

Also made up a brass drift to drive out the other bearing and spacer
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 29 Januar 2018, 02:40:08
Haven't done much on the bike over the past few days because the wife wanted me to re-upholster some of our furniture and as we all know, a happy wife makes for a happy life.....and I won't be doing much this week due to riding and golf commitments

A couple more photos of the other wheel bearing from the hub and you will also see that both bearing cups have spun in the hub. A different wear profile for each bearing is also evident on the bearing cups which may due to insufficient lubrication on one bearing.
 

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 29 Januar 2018, 09:55:42
To remove the inner parts of the Hub it is better and easier to use the axle.
Put it into the Hub, make a Tube which goes until the thread of the axle, fix it with the screw nut.
than warm up the bearing bush until 100-120° C (a drop of water will cook at once)
the take a hammer and with little beatings upon the nut the whole inner parts comes out....together and in line.....build it together:same procedere
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 30 Januar 2018, 12:35:00
Thanks for the tip on disassembling the hub Rolf

Cheers
GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 30 Januar 2018, 14:06:47
And assembling! ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 06 Februar 2018, 10:34:54
Pulled the other hub apart and found more than expected....part of a beer can used to shim the bearing cup!

Bearing bush is worn and bearing cup seems undersized
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 06 Februar 2018, 10:56:36
The beer can shim reminds me of the book, 'Zen and the art of motorcycle maintenance' .

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 11 Februar 2018, 08:34:44
I have obtained some local bearing shim material to replace the Pilsner Shim if necessary - see photos EE1 and EE2 below

I have finished welding the rim cracks and am now in the first stage of grinding the welds down before fine sanding and polishing; this is a slow fiddly job but the results are encouraging - have attached a couple of first stage sanding photos and will post up the finished results when done.

Am also still hammering/grinding/welding/hammering/grinding the front mudguard - will post up some photos when finished.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 11 Februar 2018, 08:37:58
Love the shim stock. :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 11 Februar 2018, 08:45:52
Decided to tackle the petrol tank and repair the dented side that has a poor previous repair and also repair the pin holes in the tool compartment.

The tool compartment pin hole repair is turning out to be a hard job because the steel is rice paper thin and holes appear instantly when the TIG gets near it ...argh!

Some photos of the damaged side section below and after cutting the section out, I was disappointed to find cracked, flaking petrol tank sealant inside that I will have to remove before welding the new side patch back in
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 11 Februar 2018, 08:54:09
Before tiding up my shed I made up a new Clutch throw out lever pivot pin to replace the worn one that the bike came with.

The hole in the throw out lever was worn and I had to drill it out to 17/64 to get rid of the wear and checking the tabs on the gearbox shows similar wear. I turned down some 8mm stainless steel rod and made up a replacement pin 17/64 in diameter.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 11 Februar 2018, 15:55:25
Hi Graham,

again my big respect! Both for the DIY hands-on as well as the nice documentation and sharing with us!

Best regards,

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 Februar 2018, 14:52:39
Thanks Steffan - here is what I did this afternoon

As you have probably gathered by now this bike has been flogged and is worn out so it should come as no surprise that the rear brake pedal is a sloppy fit due to excessive wear on the pivot pin and brake pedal. Every time I walk past the frame and see the worn rear brake pedal pivot I say to myself that I need to do something about it and today was the day.

I went around to a mates house and used his milling machine to bore out the hole in the brake pedal and the finished hole size is 15.5mm. After a quick beer I came home and turned down some brass to make a sleeve to fit over the worn frame pivot pin which I will fix to the frame pivot using 965 silver solder which makes for easy removal if the brass wears too quickly. I don't think the brass will wear very much as this bike will be used infrequently when finished, but I will have to wait and see.

The photos below tell the story
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 Februar 2018, 14:55:13
A couple more brake pedal pivot repair photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 13 Februar 2018, 18:45:30
Graham,

well done. This looks very nice.

What you've actually done is to create a very good technical solution in this area by inventing that bush. Now you'll have a wear part which can easily be exchanged instead of wearing out the pin or bore in the pedal. I would have chosen bronze instead of brass, because of the higher hardness of the material. My personal opinion. But I agree with you. Under occasional use it is probably going to last for a long time. Pls make sure that the area will be properly lubricated at all times.

I have to reconfirm what Steffen said. Thanks for documenting and sharing this with us.

Super!
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 14 Februar 2018, 03:08:29
Gidday Tom
I will be fitting a grease nipple to the pedal and yes, bronze would be a better choice, however I have no bronze  :(  but have plenty of brass in my shed which is why I made it out of brass.

GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 16 Februar 2018, 11:44:54
Have been thinking more about what Tom said and have gone and obtained some Bronze rod and will remake my sleeve for the brake pedal.
Will post up photos of the Bronze sleeve once I have made it and in the meantime, below is a photo of the Bronze rod I now have  :)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 17 Februar 2018, 14:36:34
Made up and fitted the Bronze sleeve for the rear brake pedal today

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 Februar 2018, 14:30:35
I am still working on the front mud guard and rims and getting closer to finishing them which is a relief.

Decided to have a break and was looking at the hub which had the Pilsner bearing shim (while I was having a beer) and noticed that I hadn't removed the felt ring and holder from the brake drum side (Note: There were no felt rings fitted to the other side of either hub which is not surprising considering the general condition of this bike). Upon removing the felt ring I noticed that the washer or lip that the felt ring beds on was convex facing outwards and not flat like on the other hub. Temporarily fitting a washer and socket on the brake drum side and using a piece of brass bar, I tapped the lip flat and all is good now.

The pictures below show the process.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 Februar 2018, 14:43:57
Also reviewed how to fix the holes in the side of the petrol tank toolbox and have decided to Silver solder some tin plate inside the toolbox using low temperature 965 silver solder.

I have cleaned the damaged area and tinned it ready for some tin plate to be sweated over the top and plan to do this tomorrow.

The two photos show the cleaned area and the dull area in the second photo is the same area tinned ready for the tin plate.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 19 Februar 2018, 11:37:40
Didn't get much done today due to visitors dropping in.

I did manage to repair the Tool Box gash and pin holes and haven't finished off the repair as you can see in the photo below - I will dress the repair after I have welded in a new side section to the tank

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Februar 2018, 14:58:44
Did some more work on the tank after golf today.

The photos below show fitting up of the new section in the side of the tank and the final TIG welding - had some trouble with some thin sections of the tank that sneak up on you as you weld causing holes.

There are two low spots that have shrunk due to heat and I will see if I can push them out tomorrow.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 23 Februar 2018, 15:11:05
Have had the tank filled with GP thinners for the last couple of days to soften the previous tank repair liner along with a heap of nuts and self tapping screws inside the tank to assist the cleaning process when shaking the tank. This showed up a leak where the fuel tank cap seats on the tank (a low spot which I had caused when levering the inside of the tank to remove a dent) and two other weep spots close to the petcock after the tank had been full of thinners for 24 hours or so. The two weep points are where a previous repair is located and it was a simple case to repair them with 965 silver solder. Similarly 965 silver solder was also used to repair the fuel tank cap sealing ring.

At least my TIG welding on the side patch panel doesn't leak  ;D

Tomorrow I hope to apply KBS Fuel Tank liner inside the tank to provide a smooth, sealed internal tank surface.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 25 Februar 2018, 13:41:51
While the epoxy fuel tank liner is drying I decided to tackle the rear mudguard which had a lot of rust on the tail light wiring conduit fitted to the inside of the mudguard.

It didn't take long to grind out the old conduit and I made up a replacement using some copper water pipe I had lying around. This will be soldered and fibre glassed into position and will be better than the original one when finished. There are a lot of holes to fill in the rear guard as well.

Hopefully will get a bit more done in the next day or so.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 Februar 2018, 14:00:33
Have nearly finished the rear guard and spent part of today filling holes and pinholes with lead, replacing a damaged lower section of the guard and finishing off the new conduit inside the guard.

A couple of progress pictures attached and I will l post up the finished results in a few days after I finish off some jobs around the house.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 27 Februar 2018, 10:26:10
Didn't get much done on the bike today because of jobs around the house and playing golf.

I put a bit of filler on the tank and repaired the dented left hand rear shock tower with some lead - see picture below. I still have to finish dressing the welds on the top of this shock tower as it was suffering from radial cracks.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 28 Februar 2018, 14:36:04
Got stuck into the Tank and guards today finishing them off with 2 pack Polyester Spray Putty. They still have to be sanded down, primed and then finished with a top coat but at least the hard part of repairing them is finally over.

I still have to fit the knee pad holder to the left hand side of the tank and this will be done after the final sanding before priming.

Some photos below just after spraying the Polyester Spray Putty.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 März 2018, 12:55:07
Finished the remaining Polyester Spray Putty Left in the can today and finished repairing the radial cracks on the left hand rear shock tower. Also tidied up the damaged area on the frame and Sikaflexed the left hand knee pad holder on to the tank.

The next job will be mind numbing boring sanding before undercoating these bits and pieces with 2K primer.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 02 März 2018, 19:28:14
Graham,

I'm following your restauration, your challenges and solutions with great interest. Unfortunately I couldn't contribute much so far. The whole thing is obviously documented very well. I can only recommend to put it onto a piece of paper one day and send to Karl to publish your restauration story on our homepage. Otherwise all your experience in restoring this bike and all the effort you put in will be lost and others can't benefit from it. Carry on, looks very promising!

Best regards from the African bush
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 März 2018, 15:36:23
Thanks for the kind words Tom - I am thinking of doing a trip to South Africa in the next year or so (or when I have finished the R26) so we might be able to catch up for a beer & talk about old Beemers  :)

Didn't get much done today because I had to work on my older sons 4WD and my daily driver sprung a major oil leak plus the auto gear selector lost a nut which gave me a headache when picking up parts for my son's 4WD.....bad day at Black Rock as they say.

Have finished sanding down the polyester filler on the tank and the front guard which has come up a treat after a lot of work and will hopefully finish sanding the rear guard tomorrow; and will be applying 2K high build primer tomorrow provided nothing gets in the way. I will apply the high build as wet on wet which will minimise sanding before applying the top coat.....if all goes well...

Since I don't have any bike photos for today, attached is a pic of my daily driver that has decided to dump oil on the driveway and stop me working on the bike argh!
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 03 März 2018, 16:24:28
Nice one Graham!
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 04 März 2018, 06:19:22
Graham,

welcome at any time. Just let me know when or if you need advice while planning the trip.

I'd call this a very extraordinary bakkie compared to Hilux, Ranger and Co which you see on the roads here in SA. Very cool!

regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 05 März 2018, 08:35:04
Thanks for liking my 1955 International Harvester Coupe Ute Steffen and Tom, there are not many left on the road in Australia.

Put some dark grey 2pack primer on the various bits and pieces today and they have dried nicely in todays 36 degree temperature.

I won't be doing much on the bike over the next few days due to other planned activities.

A couple of pics of the bike bits drying on the clothes line and then back in the shed.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 05 März 2018, 11:01:40
Awesome garden decoration  ;D
I guess you took care on covering all bearing seats and snug fits (e.g. rocker) to not paint them as well?

BR

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 05 März 2018, 13:38:02
Yes Steffen, all bearing surfaces were masked off.

Now to sand all the surfaces smooth before top coating
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 08 März 2018, 15:19:17
I have finally painted the bike parts...it took me all yesterday to sand down the primer which also necessitated drinking beer because it was hot  ;D

Unfortunately I have a paint run in the tank and the rear guard which is because the spray gun I use has the spray pattern fan knob close to the handle which I occasionally knock with my thumb changing the fan pattern to a more direct stream and hence more paint....and in the sunshine you don't pick up the different spray pattern .....which is more paint causing the run etc...all my fault, but I feel better tonight after some wine and more beer  ;D.

Hopefully the runs will dry out tomorrow and I can fix them on Saturday before I go off to Bali for a few weeks.

There will be no new posts for a few weeks as I will be drinking Bintang in Bali with my sons and their girlfriends to celebrate my wifes birthday  :prost: :saufen:

Attached are some photos of todays spray painting
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 März 2018, 12:40:34
I am back from Bali and it is time to do some more work on the bike.

Decided to fit the Centre Stand and new springs; and on checking the stand bushes, I confirm they are worn out so it is time to make some new bushes.

Found a couple of old 3/4" high tensile bolts that are a perfect fit through the Centre Stand bush holes, so it is a quick job on the lathe to make some new bushes using the old bolts.

Photos below and the next page

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 März 2018, 12:46:14
The springs for the Centre Stand are hard to stretch so I set up a turnbuckle in the vice to stretch the springs and inserted washers to lengthen the spring before fitting to the bike.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 März 2018, 12:51:16
Fitting Steering Head Taper bearings

Has anyone done this and if so, did you fit grease seals?

Thanks
Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 27-steib am 20 März 2018, 15:58:21
Hi Graham,
I can't remenber what Kind of Seals I mounted on the Steering, maybe Fest Washers.

The Foto of your frame looks funny, I hat to look at it several times- it is so smooth, that it looks chrome plated- fantastic job!

Best regards

Jan
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 21 März 2018, 16:14:41
Jan - I wasn't happy with the rear foot peg angle and have bent the foot peg mounts on the frame to get them horizontal and when I started to colour sand the frame I found some thin paint areas so I am going to repaint the frame and then it will be really smooth and shiny  ;D

Even though it is Autumn it was 37 degrees in Perth today which translates to about 43 degrees in my shed......since it was too hot to paint I decided to pull the engine apart.....it is in a sorry state.

It has been fitted with an aftermarket 12 volt Magneto/stator which is rough as guts and I am surprised it works; the flywheel nut is damaged and was loose (there was no locking washer locking tab), the piston wear is noticeable along with a scored bore. There are visual indicators of rough treatment all over the engine  :( and it has an asbestos clutch plate as well.

Some photos with more tomorrow as it is past my bed time
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 21 März 2018, 16:17:19
It is very important that the flywheel runs true so worth checking with a DTI.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 März 2018, 14:13:36
Thanks Brian, the crankshaft has seen some hard days and the conrod has flogged itself so badly that I will have to replace it. I don't have a press big enough to pull the crank apart and will have to take it to a specialist for checking/rebuilding  :(

Some more engine pictures
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 22 März 2018, 14:21:39
Good grief....comes the BMW from Romania?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 März 2018, 15:10:11
I don't know where it came from Rolf but the engine is in poor shape that is for sure, like the rest of the bike..........at least no fins are broken on the barrel or head  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 22 März 2018, 16:47:55
For a shark very important ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 24 März 2018, 12:56:21
The crankshaft is now apart and it is beyond repair.
The crank itself has been previously welded and poorly ground, the conrod has been fitted with a sleeve to fit the crankshaft pin and it has been centre punched to hold it in position but is now very loose and the crank bits are badly worn....
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 24 März 2018, 13:00:12
That looks bad, make one on your lathe? :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 24 März 2018, 13:34:39
The photos don't really show the damage Brian and the crank has obviously been apart more than once with the multiple welds on it. The centre punching on the conrod to hold the sleeve in place is very detailed but now useless as the sleeve spins freely inside the conrod; the wear on the crank from the conrod flapping around is substantial (crankwear2 jpg) and the crank pin is scored as well.

I have decided to buy a new one and a secondhand flywheel as well because the flywheel has been welded previously where it locates on the crank. I could re-weld the flywheel and turn it down on the lathe but I am reluctant as the previous weld is not good and I don't want to open a can of worms.

FYI the head isn't too bad and just needs new valves and valve guides which is refreshing
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 24 März 2018, 13:36:22
A good solution. :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 März 2018, 13:06:02
I bought some taper bearings for the steering head and they are not narrow enough for the forks to bolt up correctly.

The photo names pretty well explain things and for the record this how went about resolving the matter.

The first photo shows the bearings that I bought on ebay and the next photo shows how high the bearing and cup sit proud of the steering head. This means that the Earles fork legs are lower than the triple tree and I would have to fit spacers or find another solution. Photo 3 shows the gap between the top of the Earles fork legs and the bottom of the triple tree and which measured at 1.8mm. If I removed the dust seal from the bottom bearing the gap dropped to 1.3mm.

More on the next post
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 März 2018, 13:21:59
I want to retain the bottom grease seal so I decided to enlarge the seal to fit the outside bearing diameter so that the bearing would sit on the bottom of the steering stem. This will gain me 0.5mm.

I used a die grinder to enlarge the seal and then cut out the inner rubber ridge on the seal leaving the outside ring to act as a dust and grease seal. Photos "Seal1 and Seal2" show the seal(s) that are supplied with the bearings. "Seal modification1" photo shows the seal after the die grinder action, the "Seal Mod2" photo shows the modified seal with the inner rubber ridge removed and the last photo shows how the seal fits over the bearing.

More in the next post
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 März 2018, 13:44:26
All that to gain 0.5mm but it was worth the effort to keep the bottom bearing grease in, and dust free.

The next step was to mill 1.3mm from the small ridge on the underside of the triple tree and all should be good. Interestingly, when I set up the triple tree on the mill, I zeroed the end mill and discovered the paint and primer was 0.38mm thick before I hit metal which was good news because I wouldn't be removing as much metal as expected.  :). The first photo shows the milled underside of the triple tree and the second photo shows no gap between the triple tree and the Earles Fork legs.

I was happy with the finished result and thought a wide washer under the Fork bolts would look nice so I drilled out a couple of 8mm SS washers which look good in position. See the last two photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 26 März 2018, 19:56:26
Brian,

so far, so good. You know that the taper bearings require a longer guidance of the inner race by the steering head nut??? The original steering head nut must be modified (prolonged) a bit at the bottom end to enable that. If I remember right some 4 or 5 mm. I'll try to find a drawing or sketch for it. I sent you an email. Unfortunately I can't post photos through the forum.

Regards and have fun
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 28 März 2018, 16:34:42
Tom sent me some good photos on how to modify the steering head nut so I will so do that over the next few days.

In the mean time I started to pull down the gearbox which was not as easy as expected as I discovered that you have to drive out one of the shafts from a bearing before you can remove the gearbox cover. Initial observations is that two of the bearings are rumbly but the gears and other bits look to be in pretty good shape apart from a few butchered screws.

UPS delivered a Powerdynamo today that I ordered last Thursday to replace the home made one fitted to the engine and it is a nice piece of kit. I like the option of being able to run the bike without a battery as it won't be ridden all that often, and I won't have to maintain a battery  :)

Some photos of the gearbox and Powerdynamo
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 29 März 2018, 06:52:09
Hi Graham,

doesn't look to bad at first sight. Bearing rumble? Just change all of them. All bearings in the gearbox are standard bearings which is not the case in the final drive. There you'll probably find two "BMW" needle bearings. Pretty expensive. One advice: do yourself a favor and test the function of the neutral gear switch before you finally close the gearbox. I must admit that I missed this, but I was lucky. The switch worked.

You will love the 12 V Powerdynamo stuff. Great quality and easy to install. I also ride my R 50/2 and the XT without batterie, but I have put a capacitor into an emty batterie housing. You should remember one thing. In some countries it is a legal (saftety) requirement that the parking lights are fully functional, even if the engine is off (e.g. Germany). I don't know for Australia. Just a remark.

regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 29 März 2018, 14:25:00
Tom
Hopefully the gearbox will only require bearings and a couple of new selector fork plate screws and some bead blasting to get it looking and working as it should  :) The neutral switch check will be done for sure.

I like the build quality of the Powerdynamo (I am an Electronics Engineer) and FYI in Australia we don't have the same rules around the parking lights. Out of curiosity did you fit a capacitor for filtering/smoothing or was it for some other reason and what value to you use?
GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 30 März 2018, 08:32:44
Morning Graham,

1. smoothing
2. 22.000 microF

regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 30 März 2018, 13:47:50
Thanks Tom

I modified the steering head nut today as per Tom's drawing....my finished product made by welding an extension from a piece of water pipe I had behind the shed is not as nice as Tom's, but it does the job  ;D

Photo's below
Titel: R26 Restoration by new member from Australia
Beitrag von: Anulu am 30 März 2018, 14:45:20
Sorry my english ist terrible but :

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 30 März 2018, 14:51:33
Mate
Your English is 1000 times better than my German  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Anulu am 30 März 2018, 16:08:30

Never, but thank you.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 31 März 2018, 11:51:55
Not much progress today....I seem to be stuck removing the drive shaft which won't budge.

I have the original multi language workshop manual and it says that you unscrew it using mantra tools 506a & 494 which I don't have of course. I made up a similar looking tool that engages with the nut and tried to turn the shaft with a BFS but it wont budge.

Any ideas on how to remove it will be eagerly tried

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 31 März 2018, 12:01:33
Hi Graham

I failed to get mine apart, even with the special tool.
In the end l removed the studs and used a stiltson and heat to get it apart, by the way it is a right thread.
I had to buy a new nut and the rubbers.
Here are some photos of mine.

https://goo.gl/photos/LoxFUYYt6UqvafAfA

Good luck

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 31 März 2018, 12:14:22
Brian
When you say right hand thread you mean a normal thread which you turn Counter Clock Wise to undo?

GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 31 März 2018, 12:54:00
Zitat von: grahamjb am 31 März 2018, 12:14:22
Brian
When you say right hand thread you mean a normal thread which you turn Counter Clock Wise to undo?

GB
Yes :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 April 2018, 15:06:53
Brian
How much heat did you use; I am still having trouble removing the drive shaft using Stillsons and heat!

GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 01 April 2018, 15:58:08
Zitat von: grahamjb am 01 April 2018, 15:06:53
Brian
How much heat did you use; I am still having trouble removing the drive shaft using Stillsons and heat!

GB
A fair bit but it was only a gas plumber torch but it destroyed the rubbers inside but normally these would be replace any way.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 April 2018, 13:54:40
Finally managed to remove the drive shaft after heating it red hot and using 2 x 18inch stillsons with extender pipes for extra leverage.

Had to cut of the splined nut that holds the drive shaft coupling gear as I don't have a spanner for that type of nut. The bearings seem to be ok so I am debating if I should replace them....I know good practice says to replace them but they don't seem to have any wear and may have been replaced previously.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 02 April 2018, 14:22:34
Great news Andrew.

I changed the bearings but I was more worried about the seals as they were hard and past their best. The brake side seal was of particular concern even thete is a small drain hole in tje casting.

I think BMW expect a regime of regular maintenance on the flexible gear arrangement and I used the small hole to inject extra grease into it.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 April 2018, 14:38:49
Brian
Did you use a special BMW socket/spanner for driveshaft coupling gear nut that has 12 splines or so on it?

Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 02 April 2018, 15:00:05
Zitat von: grahamjb am 02 April 2018, 14:38:49
Brian
Did you use a special BMW socket/spanner for driveshaft coupling gear nut that has 12 splines or so on it?

Graham
No I sacrificed it removing it and used a bit of split copper pipe around it to tighten it back up.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Dappsull am 02 April 2018, 15:29:45
that drive shaft needs to see a dentist ;^). Doesn't look as bad as mine, though.
D.
https://www.flickr.com/photos/dapsul/23114550793/
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 02 April 2018, 15:37:29
Zitat von: Dappsull am 02 April 2018, 15:29:45
that drive shaft needs to see a dentist ;^). Doesn't look as bad as mine, though.
D.
https://www.flickr.com/photos/dapsul/23114550793/
Dragons teeth. :)

I was lucky that l had a goid used one as new the two parts are ober £200.

I think the design was BMWs attempt at a constant velocity joint.



Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 05 April 2018, 14:40:36
Brian
Any idea why they use that type of nut? Would have thought that a castellated nut with a pin would be ok and nowadays a nylock might do the trick.

Also see what you mean about dry brittle seals in the diff unit - went to push out the big seal near the crown wheel and it split in two....was hard as nails.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 05 April 2018, 18:07:39
Zitat von: grahamjb am 05 April 2018, 14:40:36
Brian
Any idea why they use that type of nut? Would have thought that a castellated nut with a pin would be ok and nowadays a nylock might do the trick.

Also see what you mean about dry brittle seals in the diff unit - went to push out the big seal near the crown wheel and it split in two....was hard as nails.
To be honest Graham, l have no idea but there are a lot things BMW did on these bikes that I have no idea about, for example why design a drive shaft that is very difficult to lubricate?

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 10 April 2018, 15:36:45
Have finally finished welding up the cracks in the rims, now I have the rotten job of smoothing the welds to make the rims look presentable.

After ordering a heap of parts I know know that BMW stands for "Break My Wallet"

Wales is doing pretty good in the Commonwealth Games Brian  :)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 10 April 2018, 15:49:24
Zitat von: grahamjb am 10 April 2018, 15:36:45
Have finally finished welding up the cracks in the rims, now I have the rotten job of smoothing the welds to make the rims look presentable.

After ordering a heap of parts I know know that BMW stands for "Break My Wallet"

Wales is doing pretty good in the Commonwealth Games Brian  :)
Yes they can suck money easily. When you come to think of a name for the bike you may bear that in mind. Bill Smithson has an R25/3 called Lottie.  :)

I've not been watching the games, I've been in my sick bed most of the week, but there have been some good results.

Keep up the good work. :)

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 27-steib am 10 April 2018, 16:32:06
sounds that have good fun with your beamers  ;)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 12 April 2018, 11:14:23
Before I start to reassemble the engine does anyone have a guide on assembling these engines that they would be willing to share with me.

The manual covers disassembly but doesn't seem to say much on putting it back together.

My two questions at the moment are :
1. Is there an easy way to set the valve/camshaft timing as the camshaft and crankshaft do not have alignment dots?
2. Is there anything specific I need to know when refitting the crankshaft such as case to crank clearance etc?

Have finished welding the wheels and loosely laced them with new spokes. Will post up some pictures after I fit the bearings and attempt to true the wheels.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 12 April 2018, 15:27:36
Zitat von: grahamjb am 12 April 2018, 11:14:23
Before I start to reassemble the engine does anyone have a guide on assembling these engines that they would be willing to share with me.

The manual covers disassembly but doesn't seem to say much on putting it back together.

My two questions at the moment are :
1. Is there an easy way to set the valve/camshaft timing as the camshaft and crankshaft do not have alignment dots?
2. Is there anything specific I need to know when refitting the crankshaft such as case to crank clearance etc?

Have finished welding the wheels and loosely laced them with new spokes. Will post up some pictures after I fit the bearings and attempt to true the wheels.
Cycleworks do some good videos. The presentation is not so good but the information is very good.

With regard the valve timing I used a timing disc.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 April 2018, 07:03:02
Thanks Brian I will check out the videos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 15 April 2018, 14:14:30
I was horrified at the price of new bearings here in Western Australia and wasn't too impressed with the prices from the specialist BMW suppliers as well, so I did a bit of googling and discovered Quality Bearings Online in the UK who have bearings at reasonable prices and ship them overseas with DHL.
Three days ago I ordered 2 x 6203C3; 4 x 6204C3; 1 x 6206C3; 1 x 6207C3; 1 x 6302 C3 and 1 x 6303 C3 FAG bearings for the princely sum of 58.81 GBP which is $107.88 AUD including postage to Australia and they arrived today which is Sunday, how good is that! Ordering and getting delivery in three days for a 14,600km journey is pretty impressive and FYI the price for these bearings from a local supplier was $230!

I decided to fit the bearings to the hubs and true the wheels today and thought it would be a good idea to use some bearing retaining compound to replace the "Pilsner Shim Stock" that was used previously to hold the bearing cups in position. After fitting the bearings and felt seals etc to the hub I realised that I had forgotten the spacer that goes between the outer edge of the inner bearing and felt seal on the brake drum side.....argh  :(. What I can say is that Permatex "Bearing Mount For Relaxed Fits" sets a lot quicker than the time they say and I had to press the bearings out using my hydraulic press as they would not budge when I tried to knock them out with a drift - Permatex is good stuff!

I only got one wheel done between other jobs and people dropping in to socialise on a nice 28 degree Autumn day and will do the other wheel tomorrow.

Also picked up the engine, gearbox and drive unit casings after glass bead blasting and they are nice and clean for the moment. I will high pressure wash and soapy water wash them to ensure there are no traces of glass beads left on the surface and they seem pretty clean as it is.

A couple of photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 15 April 2018, 18:28:49
Zitat von: grahamjb am 15 April 2018, 14:14:30
I had to press the bearings out using my hydraulic press as they would not budge when I tried to knock them out with a drift - Permatex is good stuff!
really seems to be good stuff! I wonder if I can get it here in good old Germany...
According to their technical data sheet disassembly might have been done easier by applying local heat (>= 232°C)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 17 April 2018, 12:05:35
Borgward
I didn't think that it was necessary to heat the thing up because it had only been in position for a few minutes and was surprised at how quickly the sealant set. Luckily my hydraulic press sorted it out  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 April 2018, 16:38:55
Nothing much to report apart that I am trying to true the wheels after respoking them and it is a prick of a job; sort of one step forward and two steps back!

Also took a break and went down south (about 200km) to watch the Margaret River Surfing Pro Classic and it got cancelled because a couple of guys got bitten by Sharks a bit further down the coast.... there are always Sharks on this part of the South West with the Whale and Salmon migration with the Leeuwin Current and I reckon the Pro Classic was cancelled because the Surf was rubbish and washed out so they used the Shark attacks as an excuse!

Some parts from Ulis arrived  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 18 April 2018, 17:04:26
Yes it made the BBC news.

I saw this on the BBC and thought you should see it:

Australian surf event cancelled after shark attacks - http://www.bbc.co.uk/news/world-australia-43805292

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 19 April 2018, 11:56:18
Thanks for the link Brian, it pretty well sums up what happened and Sharks are something we seem to do well in Western Australia, mind you our coast is 12,500km long so there is always going to be something in the water looking for a feed. The two Brazilian guys in the surf classic probably won't be back in the WA waters anytime too soon and they will miss some good surf.

Finished truing one of the wheels today
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 23 April 2018, 12:58:57
House maintenance has got in the way of the R26 over the last few days however I found time to fit the headlight brackets.

I only had one steel spacer ring so decided to turn some up out of some scrap brass.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 25 April 2018, 15:26:58
I made a rivet setting die for the steering damper friction plates and brake linings today.

It is a simple setup consisting of a rivet setting die and post to locate the rivet head on. The die and post are set up on the pedestal drill press and by pulling down on the pedestal head lever, the rivet is crimped into position.

Photos below of the two friction plates riveted to the steering damper plate.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 25 April 2018, 15:29:16
I have to do mine again. The friction plates are very brittle and I put a small crack in one. :(

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 25 April 2018, 16:24:19
Brian,
Can you glue up the crack? I wouldn't think a small crack would have much of an affect on the the bikes steering - my bike only had one friction plate fitted when I pulled it apart!
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 25 April 2018, 16:28:53
Zitat von: grahamjb am 25 April 2018, 16:24:19
Brian,
Can you glue up the crack? I wouldn't think a small crack would have much of an affect on the the bikes steering - my bike only had one friction plate fitted when I pulled it apart!
I did think of that but l have the part and l am concerned that something might come adrift and jam up the steering.
I'm some work on the bike in a few weeks to fit the new head and piston, plus other work so will do it then.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 April 2018, 14:39:33
Brian - Where is the horn mounted on your R26?

Mine was mounted on the steering damper which had been bolted to not turn (only one friction plate). See First photo
There is an unused hole at the top of the frame where the horn could be mounted hanging down under the tank (inside the two halves) The hole is marked with green tape in the second photo.

Your comments (or anyone else) would be appreciated
Thanks GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 26 April 2018, 14:55:13
Zitat von: grahamjb am 26 April 2018, 14:39:33
Brian - Where is the horn mounted on your R26?

Mine was mounted on the steering damper which had been bolted to not turn (only one friction plate). See First photo
There is an unused hole at the top of the frame where the horn could be mounted hanging down under the tank (inside the two halves) The hole is marked with green tape in the second photo.

Your comments (or anyone else) would be appreciated
Thanks GB
My R26 came with the original Bosch/Klaxon horn fitted to a curved piece of flat bar welded to the underside of the frame top tube/front gusset. With the tank in place it fits their neatly, all be it a tight squeeze.
In the following pictured you can see the bracket with a temporary squeak horn fitted.

https://goo.gl/photos/T7sd6d4S26LZjnoNA

When fitted the Klaxon there were a number of thin plates fitted as sub bracket which l assume isolated the horn from vibration.

Item 2 here

http://www.realoem.com/bmw/enUS/showparts?id=0T14-EUR-03-1958-T26-BMW-R26&diagId=61_1209

I hope this helps.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 26 April 2018, 15:30:49
Here is a better picture of the bare frame showing the horn bracket.

https://photos.app.goo.gl/IXLCxDS7ieoksrg03

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 26 April 2018, 15:53:35
Hi Graham,

luckily your picture perfectly shows the horn mounting already :) See your picture attached with an arrow showing the location. The Horn should come with an anti-vibration multi-sheet metal thingy, otherwise the vibrating horn will suffer damage itself to allow the horn to be as loud as possible (thanks for the comment Sascha), but also to avoid cracking the mounting welded on the frame (like happend on my R26) by its (vibrating) weight.

Best regards,

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 26 April 2018, 16:09:06
Picture below shows the mounting of my horn. It is not in perfect original location due to my original mounting beeing broken (and using a clamp to the frame instead), as mentioned. Probably it is slightly higher when screwed on the original mount, but just to get a rough impression.

BR

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 26 April 2018, 16:20:44
*smartass-mode on* the main-purpose of the multi-layer sheet is to make the horn-body "swingeable", which makes it loudest possible. *smartass-mode off*
There is a whole lot of aftermarket-junk around, predestined to crack, so be careful where you order your "Federblech". (-> spring-multi-sheet ).
I'd visit the local junkyard and see, if I coud salvage such from an old car or something.
Or else cut them to the desired specs from appropriate sheetmetal, 3 or 4 blades with washers between each. In german this material is called "federharter Stahl",
which means it has spring-characteristics. maybe from an old stainless-sink, that should do the job. (allthough hard to cut)
Regards,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 26 April 2018, 16:47:25
Zitat von: 4Taktix am 26 April 2018, 16:20:44
*smartass-mode on* the main-purpose of the multi-layer sheet is to make the horn-body "swingeable", which makes it loudest possible. *smartass-mode off*
There is a whole lot of aftermarket-junk around, predestined to crack, so be careful where you order your "Federblech". (-> spring-multi-sheet ).
I'd visit the local junkyard and see, if I coud salvage such from an old car or something.
Or else cut them to the desired specs from appropriate sheetmetal, 3 or 4 blades with washers between each. In german this material is called "federharter Stahl",
which means it has spring-characteristics. maybe from an old stainless-sink, that should do the job. (allthough hard to cut)
Regards,
Sascha
The English is 'Spring Steel'

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F253562980791

You useally have to heat treat it to your own requirements Sascha

Brian

Sent by me using tapety talky
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 27 April 2018, 01:33:10
Fantastic replies guys, now I know where to mount the horn  ;D


On my bike, the "Horn Bracket" was used to mount the ignition coil, see photos below.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 27 April 2018, 12:13:06
Another beautiful 27 degree Autumn day today and the weekend temperature is going to be in the high 20's which will be perfect for the weekend overnight ride  :)

Only fitted the Steering Damper today as I was getting my bike and a mates bike ready for the weekend ride

Steering Damper photo below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Taz am 28 April 2018, 09:34:21
Hello Graham.

Thanks for mentioning the weather ... enjoy your weekend out on the roads  :bike: while 15°C give us here in good ole Europe a perfect excuse to, after a sweet 90km round-trip, enjoy our post-barbeque beers in the living room...

Have fun, Taz
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 30 April 2018, 14:30:11
I am back from the weekend ride (a short 800km round trip in beautiful 30 degree weather where too much beer was drunk by all riders)
(Western Australia has been in the news again and in the last few days there has been another shark attack, a third Irukandji Jellyfish sting and a guy being knocked off his Stand Up Paddle Board by a Dolphin surfing a wave so be warned if you come to WA and want to go for a swim in the ocean  ;D)

Went to put a new bearing on the Crown Wheel today and discovered a substantial groove worn into the shaft from the oil seal....this bike is really putting up a fight. I will fit a Speedi Sleeve over the shaft to fix the problem.

Photo of the groove on the shaft below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 Mai 2018, 16:23:31
A frustrating and expensive day today.....Pressed on a new crown wheel bearing and heard a "click" and thought nothing of it. Pressed on a speedi sleeve to cover the groove on the shaft and trimmed off the excess sleeve length in the lathe and all was good or so I thought. Holding the bearing by the outer race I gave it a spin and I could feel roughness and hear clickity click as it rotated so one of the balls in the bearing may have cracked. I then removed the new $24.00 sleeve that is not reusable and the new $65.00 bearing and there is some roughness to it as the bearing spins. It feels like one ball is causing the trouble as it sometimes spins smoothly so I will order a new bearing from England when I get back from Europe at the end of June.

A question for the brains trust - In the rear drive unit there are two rubber rings that fit on each end of the coupling hub shaft. The Salis & Stemler diagrams show two rubber rings however the Ulis diagram only shows one rubber ring that I can see. Now, the Meyer site doesn't have a diagram of the R26 drive unit that I can find, however it does list a "rubber coupling hub cardan shaft R26/27 that looks the same as the Salis one which has a bevelled edge. Meyer also lists a "rubber washer driving plate R26/27" that is flat on both sides and has a smaller id. Do I need two of the Salis rubber rings (part# 33123038163) or Meyer (part#3038163) see part number 22 in the attached diagram; and where does the Meyer rubber driving plate fit (part#3038184)?

On a positive note I had new tyres and tubes fitted to the wheels today

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 02 Mai 2018, 17:02:41
Yes there are 2 beveled rubbers, part number 33123038163. They sit either side of the curved gear coupling.
The help keep the drive shaft coupling in line.
https://goo.gl/photos/LoxFUYYt6UqvafAfA

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 Mai 2018, 03:02:11
Thanks Brian, I will have to order one more rubber!

Does the beveled side of the rubber ring face inwards towards the coupling gear teeth?

Cheers
GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 03 Mai 2018, 09:15:14
Zitat von: grahamjb am 03 Mai 2018, 03:02:11
Thanks Brian, I will have to order one more rubber!

Does the beveled side of the rubber ring face inwards towards the coupling gear teeth?

Cheers
GB
If I remember correctly :) yes.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 Mai 2018, 13:52:57
Thanks again Brian, your replies are appreciated.

Decided to see if I could make the extra rubber ring for the drive shaft because we are heading off on a 5 week holiday overseas in two weeks; and making the rubber ring would allow me to assemble the rear drive unit before we left Australia.

Found a rubber suspension bush that was a bit larger than the rubber ring I need and decided that with a bit of work on the Linisher and a sanding drum in the drill, I should be able to to make a rubber ring.

The photos below tell the story and the home made rubber ring has the same flexibility and fits nicely  ;D

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 03 Mai 2018, 16:32:45
Looks good :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 05 Mai 2018, 15:33:59
Fitted a new Crown Wheel Bearing and Speedi Sleeve today along with new bearings on the Pinion Shaft

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 06 Mai 2018, 13:18:06
Finished assembling the rear drive unit today.
Made a new spanner for the threaded ring and cover because I ruined the one I made when I was getting this unit apart. Removing the old Axial seal was difficult however the new seal was easy to drive into place using the collar from the exhaust pipe which was a perfect fit for the job.

As usual, the photos below are self explanitary
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 06 Mai 2018, 13:21:02
Last group of pictures for the rear drive unit assembly
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 08 Mai 2018, 11:46:57
The wife has got me on gardening duties so the only thing done today was making a bracket to mount the Power Dynamo Coil

Photo below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 09 Mai 2018, 13:12:54
Cleaned up the brake shoes today and fitted new brake linings on one set only because the rear brake shoes have over size 4mm rivet holes and not the standard 3mm rivet holes. I have to track down some suitable size rivets before I can fitting the brake linings.

Also fitted the Earles Fork and started work on the cylinder head.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 09 Mai 2018, 19:27:00
Brian,

everything allright with you??? I am seriously concerned. I see a sink and a fridge in your "kitchen" which is fine. What about all these other strange kitchen tools? A benchgrinder and other funny things. Does your wife still love you or has she finally given up facing competition in form of a pre-historic 2-wheeler  ;D ;D ;D

Enjoy it
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 10 Mai 2018, 00:01:54
Zitat von: Herculestom am 09 Mai 2018, 19:27:00
Brian,

everything allright with you??? I am seriously concerned. I see a sink and a fridge in your "kitchen" which is fine. What about all these other strange kitchen tools? A benchgrinder and other funny things. Does your wife still love you or has she finally given up facing competition in form of a pre-historic 2-wheeler  ;D ;D ;D

Enjoy it
Tom
I think you are getting me and Graham mixed up. :)

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 10 Mai 2018, 14:16:33
Tom
Brian will prolly want to get a fridge and sink for his shed now that he has seen mine  ;D

FYI I have two fridges in my shed - the large one is my "Paint" fridge which is what I use for storing cans and tins of paint as it has multiple shelves, the door racks hold the aerosols and it is insulated keeping paint at a constant temperature which makes it last longer. There is a small fridge on top of the large fridge and the small fridge is a staging point for ice cold beer to be consumed as it is transferred from the other fridge in the garage  ;). A sink (and two fridges) is an absolute necessity in any mans shed; you can wash parts in it, quench red hot steel under the tap to harden it and most of all, wash your hands before you go inside the house.....this keeps the wife happy!

I also have a 32inch LCD TV and monitors fed from a number of satellite receivers in the electronics section of my shed...I used to watch Multichoice on PAS 10 (South Africa Foxtel) until they retired the C Band satellite which would reach into Western Australia just above the Horizon.

But enough of that...I put the front wheel on after golf today.



Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 12 Mai 2018, 16:52:39
Went to fit the handlebars today and discovered that I had used the handlebar spacer tube (between the two Rubbers for each riser) as the top engine mount spacer tubes. Swapped over the spacer tubes and I now have the correct space tubes fitted in the top engine mount rubbers and the handlebar rubbers.

The purple wire is for the indicators that mount in the end of the handlebars.

This web forum will only allow me to post one file tonight.....must have reached a limit, sorry guys
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 12 Mai 2018, 19:56:46
Graham,

Brian doesn't need a fridge in his barn. He's living close to the North Pole. But I must admit a fridge in the workshop (like a oven for other reasons) has its charme. I have the same problem as you with solvents and other stuff. My shop is also heating up pretty much im summer. I have just taken them out into a cooler place.

Your bike looks nice. Well done, creative solutions.

Carry on!
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 Mai 2018, 12:42:44
Is anyone else being limited to posting 1 photo on the forum at the moment?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 13 Mai 2018, 15:18:35
Hi Graham,
Karl is currently working hard on the board s/w to get it complient to the new European Union data protection regulations that come into effect on 25th of May. Your limitation to 1 picture may be one side effect - just wait and see...

btw. In this respect you will probably see in the near future the updated privacy policy popping up when entering the board which must be acknowleged to get access.

just for test pupose I try to attach 2 pictures


update: 2 pictures worked!
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 13 Mai 2018, 20:41:55
Hi Borgward,

nur so, um mich schlau zu machen. Die Position der Hupe an der R 23 sieht für mich völlig daneben aus. Gehört die wirklich da hin?

Gruss
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 13 Mai 2018, 20:44:43
Zitat von: Herculestom am 13 Mai 2018, 20:41:55
Hi Borgward,

nur so, um mich schlau zu machen. Die Position der Hupe an der R 23 sieht für mich völlig daneben aus. Gehört die wirklich da hin?

Gruss
Tom


Ich meine ja Tom.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 14 Mai 2018, 06:00:53
interessant. Merci.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 14 Mai 2018, 09:37:20
Stimmt, die gehört genau da hin; ist aber eine Hupe vom VW Käfer. Die originale (Bosch) sieht aber fast genau so aus und ist gerade bei mir zur Reparatur
LG
Hubi
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 15 Mai 2018, 14:43:52
I am re-assembling the gearbox.

New Bearings have been fitted - the Countershaft had a 6203 bearing and dodgy shims fitted instead of a 3202 which has now been corrected. Had to make up a tool to compress the Thrust Spring on the Countershaft so the snap ring could be removed followed by the bearing.

Hopefully tomorrow I will finish assembling the gearbox.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 15 Mai 2018, 14:48:07
More Gearbox Photos
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 16 Mai 2018, 15:47:20
Finished the gearbox today - Made new studs to hold the end cover plate on as the old ones had stretched threads and also had to adjust the neutral switch contact to ensure reliable operation.

BMW didn't make it easy to put the end cover plate back on because you have to tension the kickstarter through half a turn, heat the end cover up, fit the end cover over the studs and tap down the end cover then drive the Input Shaft bearing on a few mm; tap down the end cover, drive the Input Shaft bearing on a few mm and repeat until the end cover plate is seated on the gasket whilst holding the kickstarter under tension. The kick starter idler gear is what gets in the way in a similar way to when you want to remove the end cover plate.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 16 Mai 2018, 16:33:50
Looking good.

How did you manage with fitting the input shaft end disc, it gets in the way of the kick start gears.

https://photos.app.goo.gl/6Wlg6VsGLqa7oI6s2

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 17 Mai 2018, 07:08:07
Hi Graham,

hope you didn't miss something. Unfortunately exactly this happened to me. Have a look at your picture "homemade studs". At the end of the shaft there is a spring (84) and a washer (35)visible. Normally there should be a another washer with a funny shape, a kind of a splash plate. You can see it under Literature, Bildtafel, Getriebe for the R 26. It is number 34.

Bad news?

regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 Mai 2018, 08:17:06
Thanks Brian and Tom for alerting me to a missing washer........my gearbox did not have one fitted but that is not surprising given what I keep finding on this bike.  :(

I will order the washer and a new gasket when I get back from the Mediterranean next month unless you know where I can buy BMW bike parts from in Turkey, Croatia, Malta or Santorini.

Getting the cover off and on is a pain with the kick start gear setup - I used a drift to drive the shaft out of the bearing when taking the cover off and another drift to tap the bearing on to the shaft as far is the kick start idler gear then tap the cover on a bit etc when putting the cover back on.

Have also noticed that the front cover for the engine has been welded in three areas.....
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 18 Mai 2018, 13:13:36
Sorry Graham. :(

When I fitted the washer on my gearbox (after a few failed attempts) I partially fitted the gearbox cover but left a small gap where I could a pair of tweezers and place the washer on the end of the shaft and then push the cover the final way home.

I don't know of any suppliers in those contries but it is only a few hours to fly to Uli's. :)

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 Mai 2018, 13:21:00
Thanks for the reply Brian, this bike certainly keeps throwing me challenges
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 18 Mai 2018, 19:02:15
Graham,

you might find a BMW dealer in those countries, but I seriously doubt that they'll be able to get this washer for you in time. Unfortunately I did not put the dimensions on record.

I missed to install the washer for exactly the same reason. It was simply not there when I opened the gear box and I was too stupid to match my findings with the parts book. If you open and close the gear box a few times, you'll get used to it and you'll be able to do it in no time. After a while it'll become relatively painless.  ;D ;D ;D

Don't give up and carry on
Tom

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Mai 2018, 09:15:40
Re-opening the gearbox and fitting the missing washer won't be an issue........I should have seen the washer on the exploded diagram and it is odd that sometimes you can't see something that is right in front of you.

We leave Australia tomorrow for 5 weeks and I will order the washer in a three weeks time so that it will arrive at the same time as when we get back to Australia.
I have noticed that Ulis sells one size washer whereas Salis has a range of washers that are different thicknesses - Did you guys measure and use a shim size one from Salis or did you use the one from Ulis?

Cheers
GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 20 Mai 2018, 11:26:33
I fitted the original washer and did make some measurements but it seemed as if the information was suggesting that there was no need to shim this shaft as it is able to float somewhat at the engine end.
I was a bit confused with this and as you say, Uli does not offer shims for this. In the end I checked there was clearence and left it at that and so far (300 miles) all seems ok.

I hope this helps.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 20 Mai 2018, 12:42:40
Thanks Brian, I will buy one from Ulis
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 20 Mai 2018, 18:20:57
Brian,

did you ever get a proper explanantion as to why these washers exist in different thicknesses? I can think about it for the next 100 years and won't find a plausible reason.

Thanks
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 20 Mai 2018, 18:35:18
Zitat von: Herculestom am 20 Mai 2018, 18:20:57
Brian,

did you ever get a proper explanantion as to why these washers exist in different thicknesses? I can think about it for the next 100 years and won't find a plausible reason.

Thanks
Tom
I have two lists, one has list of things to do on your BMW single cylinder and the other list is full of life's mysteries.
:)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 27 Juni 2018, 07:01:37
I am back from looking at old rocks in Malta, Croatia, Turkey and Greece and have come home to some winter weather. It is going to be a miserable wet 18 degree today, brrr.

While I was away I got to thinking that since my rear brake shoes have been drilled for 4mm rivets which I can't seem to buy, I will try and make some. I made them from aluminium as I had some 6mm Al rod and it is easy to machine - Unfortunately I forgot to take photos while making them but can say with the first attempt, the 2mm hole was too small which caused the end of the rivet to split when fitted. I drilled the hole out to 2.5mm and all is now ok.

In the first photo you can see the split in the end of the rivet after fitting. The next photo shows me sanding the head down to the same thickness as copper rivets, photo three shows the home made rivets and the last two photos show the brake linings fitted to the brake shoes.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 27 Juni 2018, 15:44:53
Hi Graham,
you should care for the slideways in your brakeshoes urgently! These grooves can "catch" the brakelobe - resulting in a stuck brake! Really not funny...
Best would be to get new brakeshoes, but as you put so much effort in these, I suppose you'd like an alternative solution.
It is possible to fit sheetmetal-linings - let's say min. 2mm thick, better 3mm - around the slideway-bosses, but they mandatory have to sit absolutely fixed,
no play at all. On your own risk ! ( I did so in the past for the limp brakes on my old crosser with the desired result )
If something is unclear due to my german-english, don't hesitat to ask.
(But it may take some time for reply, as I will watch our soccer-team's final chance to stay in the world-championship in 15 minutes )   ;-)
Keep going !
Best Regards,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 27 Juni 2018, 19:37:55
Hi Brian,

nice to hear that you made it back from the Osman Empire that is going to be a dictatorship soon. Hope you enjoyed Malta. Beautiful, isn't it?

Have you ever thought about the reason why brake rivets are typically made of copper and not of aluminum? There must be a reason. Don't ask ME why. I am stupid. Just a thought.

regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 28 Juni 2018, 05:13:57
Sascha
What do you mean by slideways?

Tom
Maybe when they started riveting brake linings copper was more common and malleable than aluminium? Copper has better heat transfer than aluminium and the differences between tensile and yield strengths wouldn't make a difference when used to hold brake linings on these little bikes.

Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 28 Juni 2018, 06:13:11
Hi,

copper has a higher tensile strenght than aluminium.... i think that is the reason and not what was more common... copper and aluminium were also both in use in the 50ies and earlier.


Heiko
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 28 Juni 2018, 06:19:48
I was spontanously thinking about yield and shear strength. A feeling. But to be honest I would have to look it up to understand the realities. But I also have a strong feeling that you are right with the "little bikes".

I believe Sascha is talking about the contact area for the excenter on your brake shoes to open and close the brake. My own duplex-brake has a different design. So I can't send you a photo. The area is supposed to be flat. Yours look already pretty worn (last photo). Indeed dangerous, if the brake doesn't open anymore one day.

regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 28 Juni 2018, 08:13:51
I think the higher melting point of copper is also a factor.

Probably not on a single BMW but on some  vehicles the melting point of aluminium could be reached.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 28 Juni 2018, 08:46:14
Thanks Tom, you got me ;)  But what term do you use in an english/australian garage ?
I encircled this in red in the one picture. The other one shows the sheet-metal-lining I was talking about, but this one is factory stock, indeed no BMW,
just as an example.

Regards,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: cledrera am 28 Juni 2018, 09:01:20
Moin (Good Morning) Graham,
please, be so kind and upload more pictures of the breakshoes.
I believe, there`s a crack, the upper one on the right side.
I also believe the notches are too big.

Thanks

Clemens
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 28 Juni 2018, 10:49:54
Thanks for the comments fellas and there is no crack Clemens - what you can see is dirt that I hadn't cleaned off.

I will weld up the "scalloped" sections on the brake shoes and make them like new  ;D

Thanks for pointing out the problem - this is what makes this a good forum; sharing of knowledge and experience

Cheers
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 29 Juni 2018, 04:51:41
Graham,
sounds like a plan. Possible, but you'll still be sitting with relatively soft material in this area. A typical weakness of many of these brakes. The brakes of my DT and XT don't look much different. But your new brake shoes will most probably survive you. The more I think about it, the old brake shoes will most probably also survive you  ;D

Sascha,
agreed, Australian is one of the tricky languages  ;) But you don't want to hear what my brothers and sisters (Afrikaaners and black Africans) are producing in SA every day.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 29 Juni 2018, 05:42:27
Yep, the brakes will outlast me and the welded repair is stronger than the parent metal which I determined when hand filing the welded sections  ;)

Below is a photo of the welded brake shoes - just have to finish off with some fine filing and all will be good.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 30 Juni 2018, 09:31:30
The postman delivered washer 34 yesterday afternoon and I fitted it today  ;D

Further to Brian's comment re fitting this washer; I put some oil on the washer and slid it into position under the idler gear and onto the bearing hoping that the viscosity of the oil would keep the washer in position. This worked nicely and the washer stayed in position when I held the cover upside down and it never looked like moving. If that failed I would have tried using grease.

First photo shows the washer in its correct location and the second photo is the gearbox reassembled.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 04 Juli 2018, 11:16:55
I will be starting to put the motor together soon and decided to make up an adapter plate to hold the crankcase in my rotating engine stand. Made from scrap steel lying under the bench it is nothing flash. but it will make assembling the bottom end of the engine a lot easier.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 04 Juli 2018, 11:45:31
Again nice one Graham! With regards to the upcoming tightening of the flywheell(-nut)  I recommend a fixation of such that leads the force directly into your holder, not via any housing parts.

BR

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 04 Juli 2018, 15:38:58
That is my plan Steffen - I will make some bracing to go from the flywheel to the bracket.

Cheers
GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 06 Juli 2018, 12:13:08
Decided to have a go at seeing where I could mount the Power Dynamo Relay, Controller and Regulator.

This bike has been previously fitted with a separate ignition switch above the battery box which I will be retaining and even though you don't need to run a battery with the Power Dynamo, I have decided to fit a battery and I will wire the bike so that the headlights are always "on" which is required by Australian law on later bikes. 

A Lithium battery is the ideal choice as they don't self discharge, are lightweight and relatively small......however Lithium batteries don't like to be continuously discharged or overcharged and sometimes require a "Wake Up" discharge if they haven't been used for a while. I have ordered a small Lithium battery with inbuilt battery management to regulate the charging and the small size means that I can fit the battery and Power Dynamo parts inside the battery cover. If the battery needs to be "Woken Up" after a long period of inactivity, the headlight current draw when the bike is turned on will be sufficient to wake up the battery.

The first photo shows the battery I will be using, the second photo shows everything in position with a dummy battery and the third photo shows the battery cover fitted with the Power Dynamo parts inside inside.
Titel: R26 Restoration by new member from Australia
Beitrag von: Anulu am 06 Juli 2018, 12:33:05
Nice!
Did you realy need the Relaise??
(https://uploads.tapatalk-cdn.com/20180706/74aa0faf384f1fb4050942a9d2d12ca8.png)

Dont you have ,,Klemme 2"  (in english clamp?) on your Ignition Lock?


https://www.bmw-einzylinder.de/forum/index.php?topic=16884

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 07 Juli 2018, 05:09:40
Gidday Anulu
Thank you for your reply and yes, you don't need the relay if you have a standard ignition/headlight switch which will earth the blue/white wire when switched off.

Unfortunately my bike doesn't have the original BMW ignition/headlight switch which has been replaced with a "Dummy" switch on the headlight for authenticity appearances. I looked at buying an original switch but after finding out the cost I decided it wasn't worth the money and will stick with the key operated switch that has been fitted on the frame above the battery box.

This means that the wiring of this bike will be nothing like the original and I will be using relays for the headlights, horn and immobiliser to minimise current draw through the handlebar switches.

This arrangement won't meet with everyone's approval however it will look original apart from the key operated switch which is the main thing.

Below are a couple of photos showing the key operated switch.




Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Anulu am 07 Juli 2018, 08:04:10
Ah ok.

Ther is another Buck ( before you have to go to troubleshooting for a long time)
All 4 switches (from the ignitioncontrollbox) must be OFF!! ( for BMW )
The factory are delivered is "ON" ( for any twotakt-Motor

Look her ( not finished yet ) :
(https://uploads.tapatalk-cdn.com/20180707/652f0c135a5b73a2fc5b0c4dc4a62ac6.jpg)

Sorry for me xxxxx-english

Hope you know what i mean.

Gruß Manuel
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 07 Juli 2018, 13:42:12
Zitat von: Anulu am 07 Juli 2018, 08:04:10
(for any twotakt-Motor

Alter.... das ist geil....  :lol: sorry for that unqualified comment Manuel but this is great! For your Information: two-stroke engine  ;)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: cledrera am 07 Juli 2018, 13:45:21
What?
A two stroke Motor?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 07 Juli 2018, 18:02:27
er kommt aus S.H.....er meinte Zwotaktmotor
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 07 Juli 2018, 18:27:57
Do we mean a 'wasted spark' engine?

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 07 Juli 2018, 20:07:33
Our four-strokes waste a spark, too  ;)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 07 Juli 2018, 20:14:56
Zitat von: OldsCool! am 07 Juli 2018, 20:07:33
Our four-strokes waste a spark, too  ;)
The R27 doesn't  ;)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 07 Juli 2018, 20:24:06
What do you do with all those safed sparks?  ::)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 07 Juli 2018, 20:29:43
Zitat von: OldsCool! am 07 Juli 2018, 20:24:06
What do you do with all those safed sparks?  ::)
The spark fairy. :)

https://en.wikipedia.org/wiki/Wasted_spark


Sent by me using tapety talky

Titel: R26 Restoration by new member from Australia
Beitrag von: Anulu am 07 Juli 2018, 20:42:57
Zitat von: Heiko am 07 Juli 2018, 13:42:12
Alter.... das ist geil....  :lol: sorry for that unqualified comment Manuel but this is great! For your Information: two-stroke engine 

Thank you for the Information Heiko.

In Tokunft ward ikk nur no plattdüsch schreeben.
Dat is ne Mischung ud Englisch , Hochdütsch und Niederländisch.

Un ikk har dat daminomol Word extra gegockelt... und gockel sek dat heid: Twotackt
Basta!
Gockel hed wie Rolf, jümmers Recht!



Ich kann mit Kritik gut um und weiss um mein besch..... eidenes Englisch.
Dennoch fällt man bei der UPD gern auf die Werkseinstellung rein und das musste geschrieben werden bevor Frust entsteht!

Also was werd ich in Zukunft tun?
Richtig! Mir fehlt das Scharmgefühl-Gen und werd wenn nötig weiter mit google Translator posten.
Ätsch! Selber doof

@ Rolf. Richtig! SH nicht weiter östlich der Elbe!
Das heisst hier 2 (Zwei)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 07 Juli 2018, 20:51:12
 ;)... schreib ruhig auf Platt....
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: cledrera am 07 Juli 2018, 21:31:44
Wir war dat mit die Jene?
Charmegene?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 08 Juli 2018, 04:13:15
Thanks for the heads up about the dip switches Anulu.

I have been busy doing welding jobs for family and friends who always want welding done after you have cleaned up and put everything away.....argh!

The cylinder head now has new valve guides, new valves, new valve springs and retaining washers - I had to use the old valve guide retaining clips because the clips supplied with the new valve guides were too small. The cylinder has been bored and honed to suit the new piston and has also received a lick of black paint.

I have also fitted new bearings to the camshaft and am getting ready to start to put the motor back together.

Some photos below

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 08 Juli 2018, 08:15:06
Hi Brian,

looks very good. Did you ream the valve guides properly after installation? The clips would be less of a concern. Should work with the old ones.

regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 08 Juli 2018, 15:03:33
Tom - Yes the valve guides and valves have been correctly fitted, in fact the old valve guides showed signs of blow by between the head and outside of the guides.

Went to put the engine together today and ran into a missing part problem but firstly, I decided to pull the oil pump apart to check the gears and body clearances which were all very good as it turned out. What I did notice is that the oil pump had the wrong bolts/screws in the wrong holes which have now been fixed.

My missing part problem is that I can't find the spacer ring that goes between the crankshaft bearing and the oil slinger - this is a spacer with an internal taper and I am happy to make one as it would be quicker than buying one. So if any of you guys have the dimensions for this spacer ring it would be appreciated if you could let me know what the dimensions are. The part number is 17 on the Ulis diagram and part number 5 on the Salis diagram - BMW part #0016114, see attached photo.

Photo 1 is Salis Spacer Ring listing, Photo 2 is the oil pump before disassembly and photo 3 clearly shows where the countersunk screw fits
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 09 Juli 2018, 14:47:37
I have ordered a spacer ring and while I am waiting for it to arrive I will go and play some golf  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 11 Juli 2018, 15:56:50
While I am waiting for the crankshaft spacer ring I decided to put the headlight on and on checking the Generator and Neutral globes noticed that their globe holders are corroded.....another thing to fix which is not surprising. Also noticed that the yellow wire coming from the headlight switch has melted at some stage which will be another job to fix when I repaint the handlebar switch blocks.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 12 Juli 2018, 16:34:22
Repaired the Generator and Neutral lamp holders today by replacing them with gold plated minature Edison holders

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 Juli 2018, 11:48:29
Funny how there are always other little jobs to sort out

I looked at the speedometer and noticed that paint was flaking off the internal plastic rim which wasn't ideal. I removed the chrome ring and speedo glass and scraped off the flaking paint, reset the odometer to zero and put the speedo back together. I didn't repaint where the paint was flaking from as it is cosmetic and the Australian UV would make short work of any new paint.

Also noticed that the the brake rod hole on the foot brake lever was also worn so I knocked up a small 8mm bronze bush to centralise the pin.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 17 Juli 2018, 14:00:55
Have been doing stuff that takes forever and you have no output to show for it.....the joys of restoration.

Am still waiting for the spacer ring to put the motor back together and in the meantime have been trying a few different wiring options/configurations inside the headlight where wires are usually pushed together and shoved inside the headlight so that no one can see the mess....

Pulled the Headlight/Park light switch apart to find the cause of the melted yellow wire.... one of the switch sliders has been dislodged and was protruding from the switch body; the yellow wire had disconnected from the switch terminal because of a dry solder joint; the black wire has a dry joint and the blue/white wire has also partially melted with a bad solder joint and burnt switch contact.

This bike is still testing me!

My plan is to refurbish the switch block (and the other switch block as well) by repainting, replacing the wires and PVC sheath, correctly relocating the switch slider back inside the switch and using the unused switch contacts by turning the switch contact board upside down. This will be detailed in later posts after I have repainted the switch block housings.

The photos below show the condition of the switch/wiring and the mounting of the indicator can and high/low beam relays inside the headlight housing
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 Juli 2018, 14:06:17
Fixed the faulty headlight switch today by repairing the nylon slider block to stop the contact sliding out, using the unused switch contacts and fitting new wires.

This will be refitted once I have repainted the hand control body

A couple of photos below

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Jollyjester am 19 Juli 2018, 08:48:40
Perhaps the very best modification you can do to the headlight shell, is to paint the inside white!!

Then you can see exactly what you are doing and where all the wires are going.

I know this is has been a modification since at least the 1960s.  Or if you don't want to paint, fold a piece of white paper or card inside.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Taz am 19 Juli 2018, 08:57:35
Karl, could we please add this to the Tipps und Tricks?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 19 Juli 2018, 09:01:15
Zitat von: Jollyjester am 19 Juli 2018, 08:48:40
Perhaps the very best modification you can do to the headlight shell, is to paint the inside white!!

Then you can see exactly what you are doing and where all the wires are going.

I know this is has been a modification since at least the 1960s.  Or if you don't want to paint, fold a piece of white paper or card inside.
Yes I agree Robert and here is one I prepared earlier.

Brian

https://photos.app.goo.gl/u4WH8mcsFAeQyUDa6

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: cledrera am 19 Juli 2018, 09:28:50
 :applaus: :applaus:
Very smart Brian and Robert.

Tas,
you`re right:
ZitatKarl, could we please add this to the Tipps und Tricks?

Clemens
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 19 Juli 2018, 13:45:10
How about Chrome? Then you can even see the backside of the wires  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 19 Juli 2018, 13:54:04
Good idea painting the inside of the headlight fellas especially for us old buggers with failing eyesight  :)

I did some painting today but it was black and not white so the inside of my headlight is still black.

Painted the Switch Covers, Airfilter, Horn, and Drive shaft rubber steel ring thing and the bit that goes into it - also repainted the petrol tank Tool Box cover because I wasn't happy with the first attempt when a Bee got stuck in the wet paint.

Photo below including the reflection from my shed lights.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 21 Juli 2018, 11:27:13
Fitted the drive shaft to the rear drive unit today and mounted it up on the bike - also made a spring for the fork lock.

Photos below

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 Juli 2018, 13:10:33
A question for the brains trust if I may.

Q. The exploded parts diagrams that I have from various suppliers shows 2 x wave washers at the rear of the crankshaft (one washer either side of the rear bearing) except for the Salis exploded diagram that only shows 1 x wave washer between the crank and the rear bearing....so is it one or two wave washers and if it is two wave washers, are they compressed flat after fitting the rear crank bearing and flywheel?

Cheers
GB
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 22 Juli 2018, 13:28:52
It was so long ago when I did the motor on my R26 I can't remember but l would suspect 2 would mot do any harm.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 23 Juli 2018, 10:17:14
Thanks for the reply Brian, I will go for the two washers.

My bearing/slinger spacer arrived today and when I went to slide it on the crankshaft I found the one that I had lost previously which I had put on the crankshaft so I wouldn't lose it...... :kopfhau:

Welded a big fat washer onto the end of some 36mm ID pipe and turned the hole out to 31mm - this piece of pipe will now fit over both ends of the crankshaft so that I can press the bearings on.

Also reassembled the handlebar switch blocks and put them on the bike.

Photos below

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 23 Juli 2018, 10:42:34
Looking good.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 24 Juli 2018, 13:43:11
Made a bit of progress on the bottom end of the engine today after receiving advice on how to check the flywheel position on the crankshaft.

Drilled some holes in some scrap plate and bolted the flywheel to it; then I fitted a wave washer, the rear bearing and bolted the crankshaft to the flywheel at the recommended torque of 125 foot pounds. I then checked the clearance between the rear of the crankshaft bearing and the front of the flywheel which was measured at 0.88mm which is good as it will allow the rearmost wave washer to fit nicely.

More photos and info on next page

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 24 Juli 2018, 13:51:11
Assembled the bearings and other fittings on to the crankshaft and fitted the assembly to the crankcase - will hopefully get time tomorrow to do some more.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 25 Juli 2018, 15:33:37
Didn't get as much done today as I wanted to - Installed the rear crankshaft wave washer, rear oil seal, made up some locking tabs for the flywheel, installed the flywheel, Camshaft and Cam chain (fitting the cam chain link was a PITA and I found it fiddly to fit)

I went to install the cam chain tensioner and discovered that the cam chain tensioner I had purchased some time ago is only the tensioner arm that presses against the chain - I need to buy the cam chain tension spring and the stepped bolts to mount the two items...argh I will order the necessary parts tomorrow as I am going to have a beer now!

Photo of the flywheel and cam below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 26 Juli 2018, 11:34:03
Didn't do a lot today as I was given a list of other jobs that the bride wanted me to do......

However I managed to check the cam timing with a degree wheel and fit the oil pump minus the screen as I have to get some longer 6mm bolts to allow for the filter spacer block because I will be using a deeper sump.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 26 Juli 2018, 14:05:40
Hi Graham,
still enjoying watching your progress in every detail step by step with biggest respect about what you mill out of nothing in case somethings broken.
Can't wait to see you on the street.

best regards,

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Jollyjester am 27 Juli 2018, 08:57:49
Hello Graham

Like very many, I follow your rebuild will interest, and admire your engineering skills.  I attach hopefully??  The camshaft and A chain tensioner that is readily available from all the usual suspects and really a must.

As you can see, and all this was done in the 1970s, the cam wheel has been drilled and lightened also polished.

The camshaft, had RE ground to more sporty profiles to more less match that the R50 S.  I cannot remember the exact timings now, without looking up, but the inlet certainly opens perhaps 15 - 20°before TDC, and the overlap on the valves is quite large.

The piston is an R50 S, 9.5 -1 and the inlet tracked open out as much as I could, with an 1. 1/8th on Amal. Monobloc.

£6/10/0 from BSA when they went into liquidation, these now are only £189.

The small end bush had to be opened out from 18 MM to take a 20 MM pin.  There was enough metal in the connecting rolled to permit this, and it is run in this condition since then.

You will notice a slot cut in the end of the secured bolt, on the camshaft center, this is to pick up the drive from a rev counter.

That part was also ex BSA.  These engines like to rev, and this one I have seen just on 7000 RPM but that was downhill.

Considering this is 1951 basic technology, and it's still going today, not bad.  And also great fun

In the sixties I was young and stupid, know on the same but a lot older.

At that period of time, of there was a BMW club member, the name of Vic Doswell.  He loved the singles, and was very well respected by BMW, who actually loaned him a  potential as 350cc, R28 to road test, he used in trials ( mud & water etc ), it also had the revised suspension, with Tele forks and a correct rear swing arm.  Why I mention all this, I recently came across a letter he sent to me, handwritten of course in those days, about his exploits with an R26 that he'd lightened to use in high speed trials.  He rode and Silverstone and the like, but said it would certainly keep up with the best of the two fifties in those days, Royal Enfield made quite a nifty 250.

I have transcribed his letter, and will put it on this forum for the benefit of everyone to read, his first line was, " remember these a very heavy bikes to start with", but his words of wisdom were true then and still are today.

But the bottom line is, we're all having lots of fun, and we're not hurting anyone only release our selves if we overcook it on a bend.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 27 Juli 2018, 15:50:03
Thanks for the comments guys - Living in Australia is a disadvantage when it comes to buying parts for European bikes and being able to drop around and have a chat with owners of similar bikes; I like the Tacho drive modification; don't know if I want to be riding one of these bikes reving at 7,000 RPM but wow, 7,000 revs is pretty impressive.

I have ordered the timing chain tensioner kit which I expect will take two weeks or so to arrive which will give me time to clean up my shed and do some maintenance work on my old Ute.

Found some 6mm long bolts and fitted the oil pump strainer and spacer along with a new aluminium sump which is not a great fit (about 2.5mm too long) but a blind man would be glad to see it.

Went to fit the piston and barrel and accidentally damaged the barrel gasket  :kopfhau: while adjusting the push rod tubes that are a friction fit into the barrel  ....Made a new barrel gasket and a brass drift to knock the push rod tubes into place before fitting the piston. Did a trial fit of the gudgeon pin retaining clips and guess what, they are too small and fall through the piston  :kopfhau: I am amazed that the retaining clips supplied with the new piston are the incorrect size but then again, this bike keeps throwing up challenges ! I used the original retaining clips to hold the gudgeon pin in place, fitted the barrel and head and adjusted the tappets.

Did a cam timing recheck using the degree wheel now that the rocker gear is fitted and I am of the opinion that this bike has a R27 Cam grind or similar...who knows.

Some photos below.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 27 Juli 2018, 15:55:42
A couple more photos showing the undersize gudgeon pin clips and the head fitted.

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 28 Juli 2018, 10:31:06
Robert,
can you post a picture of the inside of the timing chain cover? I'm curious for details on the rev-counter drive.

Cheers,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 29 Juli 2018, 15:38:45
Realised that my motor didn't have a breather tube so I decided to make one.

I didn't have any suitable size tube but determined that the old brace from the front mudguard would be about the correct size. This brace was bent and uneven after numerous repairs but I managed to get it roughly round and turned down one end to fit inside the front cover on the engine.

I then went around to a mates house to use his pipe bender to bend it to shape and wasn't all that happy with the finished bend so my mate offered to turn down some 20mm OD aluminium tube so that we could make a breather tube out of aluminium instead of steel.

Photos below and on the next page and are self explanatory as usual


Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 29 Juli 2018, 15:43:02
The finished tube is a bit long and the bend angle is too acute so I have a bit more work to do while I wait for the timing chain tensioner to arrive.

I also fitted the clutch today.

Photos below
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Jollyjester am 30 Juli 2018, 09:24:29
Rev Counter Drive.

I do not have a photograph of the inside of the timing chest cover.

The cover was drilled through. taped to match the thread on the Brass fitting shown in the photograph.  This was screwed in, with some sealant around it and locks in place by the nut outside.  It has never leaked oil

The part that of turns the inner drive cable, is a snug fit inside the Brass unit, formed square at one end to take the cable the other end is milled into a flat spade, that fits into the slot in the end of the camshaft drive and there's a tiny circlip that prevents, the inner part from falling out through the front.

By carefully measuring how far the Brass unit is screwed in, this secures the inner part with a little free play to turn, but not to rub on the drive nut, the ratio is a 2-1 anti clockwise.

The rev counter I had in those days, I think was out of a MG car, it was about the size of a Vincent speedometer, 5 inches diameter mounted on the handlebar, so the drive cable was only about two 2ft 6 ins long.

It was on there for at least 10 years, when I sold the bike in 85, but not when I bought it back in 2009.

In that time the Norton front wheel had been sold, because it would not stop!!  With the BMW wheel, and the rev counter was also gone.

In that 24 years' absence, it and sat in a museum in the motorcycle shop in St Albans, Clarks in London Rd.  When Tony Clark ceased trading he took the bike with him and a number of others, include a Velo Thruxton, DBD 34 BSA, a Rudge Multi and 1907 Premier

during it's holiday with Tony, the engine was never fired, or run, or ridden.  When I got it back, in 2009 turned  the engine over a bit, push up and down the drive without the spark plug in, it started third kick.

after about 5 minutes, there was a cry of anguish, scream!  coming from the gearbox. so I did not run anymore.  Took the gearbox off, and decided the dogs were dry.  tipped the gearbox upside down or different ways, to get some oil around in it put it back on, started again no trouble, road up and down the road ( illegally ) and then decided to do a complete restoration, that took approximately five years, has been ongoing for the last couple, can I think I've really done it cracked now.

I'm sure Graham, you can sort out a way to make a little drive along the lines I said.

I've tried to find something on google, a photograph of the drive, a but nothing unless I troll through pages of triumph exploded engine diagrams
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 August 2018, 06:10:35
Jollyjester,
Thanks for the interesting story about your old bike and it will be good to get it back on the road....I wish I still had my first motorbike which was a modified Honda Dream that was used for racing.

It is 4TAKTIX who is after more information on the tachometer drive arrangement that you used on your bike; I have no plans to fit a tachometer to my little R26 and if I did, I would use an electronic one.

I have come to a standstill on my bike while I wait for the timing chain tensioner to arrive apart from finishing the headlight wiring and deciding if I should attempt the tank and mudguard line striping or pay some one to do it. I have a pretty steady hand but don't fancy myself as a line striper.

Cheers for now
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 09 August 2018, 14:07:08
The Timing Chain Tensioner arrived today which I duly fitted along with the Power Dynamo Magneto. I also changed the breather pipe to a shorter design and fitted it to the front cover. AFter I lifted the engine into the frame I noticed that there were two nuts on the front engine cover that were going to foul on the frame. These nuts were on studs that I had put into the engine casing as I wanted a uniform look to the front engine cover....now I know why there were some bolts fitted in lieu of studs. So out with the studs and in with a couple of bolts and all is good.

Photos below and on the next page.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 09 August 2018, 14:09:17
These photos show the engine back in the frame
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 09 August 2018, 14:10:53
Can't wait to see it finished.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 09 August 2018, 14:14:52
Me too Brian, it is hard to go into my shed at the moment because it is cold and raining but some hot cups of coffee and tea help - should get the gearbox in tomorrow
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 09 August 2018, 16:19:03
You're blessed Graham - we're sweatin bullits in germany, for the last 4 weeks - almost 100 deg Fahrenheit / 38 Ceslsius.
Even the big Rivers are on very low tide gauge, like seldom before.
Maybe this is business as usual in down under, over here it almost paralyses everyday business.
DIY-Stores sell inflatable pools like popcorn and the established beer brands were out of empty bottles.....  8) :prost:

Cheers,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 10 August 2018, 04:26:34
Yeah, you guys are doing it tough at the moment - my wife and I were recently in Croatia, Malta, Turkey and Greece where it was pretty warm and my eldest son has just returned from touring Britain and Europe and he said it was hot.
I worked in the UK 40 years ago and 30 degrees UK felt like 40 degrees does in Australia....your heat wave is balanced by our current cold snap where it got down to 4 degrees last night and today is forecast to be sunny but a freezing 16 degree maximum, brrr
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 10 August 2018, 06:13:24
Hi Graham,
don't worry. You are not alone. We see the same arctic temperatures for the moment. Luckily the August winds have set in and the rainy season will kick in soon. In a week or two it'll start warming up again. I'm not made for this.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 10 August 2018, 11:25:15
It is 20 past 5 on Friday afternoon and it is a very cold 15 degrees....might have to zip up to Bali to thaw out for a few days.

Didn't get a lot done today because it was warmer inside the house than my shed however I fitted the gearbox and carby plus made a retaining pin for the clutch throwout lever pivot pin instead of using a split pin. The split pins that I had were too thin or too thick so I turned down a leftover 4mm SS spoke and put a 3mm nylock on one end. Looks a lot better than a split pin.

The next jobs will be to bolt the engine to the frame, finish off the wiring and fit the headlight.

Two photos are attached
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Jollyjester am 11 August 2018, 08:38:42
I note you have fitted a deep sump.  How much extra oil does this carry?

But one other thing, have you thought about making an extended oil dipstick to measure the actual level ?

Or, using the as supplied dipstick, does this work out that when the level has dropped to say half on that, you still have X amount of oil in the Sump.

Presumably, there is also an extension to lower the oil strainer inlet, otherwise it would just suck from the top.

Just a thought.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 11 August 2018, 13:32:17
Hi Jolly,

the deep sump kits usually contain an extension to be put between oil pump and intake to suck the oil from lower level/ same level with regards to bottom of the sump.
The dipstick remains the same to ensure no overfill. Of course you have more reserve compared to stock sump, as on minimum there is another litre left.

BR

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 11 August 2018, 15:57:51
Nicely explained Steffen

Didn't get much done today - fitted the speedo cable and cover on the gearbox; found out that my new clutch cable and front brake cables are too short.... :kopfhau:

Have also decided to ditch the crappy headlight globe assy and replace it with a H4 globe - lets see what I can dream up to modify the original reflector to take a H4 globe.

Only one photo today
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 11 August 2018, 16:06:33
Hi Graham
I also found that the new clutch cable I bought from Ulis was too short. I was able to remove a few inches from the outer sleeve to get it to work but worried about it being non standard.
I think l have an original one somewhere so i will have to measure it.

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 12 August 2018, 14:53:31
Interesting comment Brian, I borrowed a new clutch cable today to check against my new one and it is identical to the new one and the one that was on the bike has a casing that is 75mm longer than the new one. My old brake cable casing is 50mm longer than the new one so it looks as though I will have to make some cables.

In between borrowing cables and looking after one of my sons two idiot dogs I didn't get a lot done on the bike.

I wasn't happy using nuts and bolts to hold the Power Dynamo Regulator and Advance Unit in place so I fitted some rivnuts (or clinch nuts) to the backing plate to hold these two items in position. I reversed the rivnuts for the Advance Unit so that the flush side of the rivnut was on the back of the backing plate to provide clearance for the rear mudguard. This had the advantage of of providing a 8mm stud length on the mounting side which compensated for the curve in the backing plate which was an expected bonus.

I had to extend the two Power Dynamo black AC wires so they were long enough to reach where I was mounting the regulator and that is all I managed to finish today.

All simple stuff and a couple of photos are below.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 12 August 2018, 18:48:34
Graham,
do you a favor and take a long(er) nut for the valve cavers....than you haven´t to take away  your gasoline tank by inspecting the valve clearanc
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 12 August 2018, 22:21:36
like such:
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 August 2018, 15:00:24
I was going to put a standoff spacer on the rod and followed by the nut but the longer nut is a good idea and worth thinking about.

No work done on the bike today - I was busy converting an old car radio to AM/FM/Bluetooth/Handsfree which is a little sideline I do from time to time and also fixed a leak on the roof of my wifes home Hairdressing Salon that I built 25 years ago.

Talking about oils; what is everyones preferred oil to use in these old clunkers - good old fashioned mineral oil, four stroke motorcycle oil with additives or Synthetic oil and do you put the same oil in all three holes?

I think BMW recommended mineral oil for all three holes but in later years went to a hypoid gear oil for the rear drive unit and maybe the gearbox. Personally I like to use the same oil in all three holes and was thinking along the lines of synthetic or the four stroke motorcycle oil. What do you guys use and what are the pros and cons of each as you see it?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 13 August 2018, 15:14:22
Hi Graham,

due to the fact that we usually do not have an oil filter, we want to keep all residuals in the sump. Modern oils have additives that intend to keep all dirt floating to reach the filter and stay there. Not intended for us! Therefore, try to get an oil with least amount of additives/mineral. Similar for the gearbox and reardrive. Modern stuff will ruin the non-ferrous metals in our oldschool drive. I do not use hypoid oil, but the one Bernd has recommended as our "god of gearbox". If he does not comment himself, I'll look it up next week when I am back home from holidays.

BR

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 13 August 2018, 15:55:23
Graham, just to alert you: By asking for oil-recommendations you hit a wasp nest !
This is the top fierce discussed subject ever !
One party is convinced of using single grade mineral oil (e.g. SAE 40) without any additives (due to Steffen's explanation),
the other party uses cheap, multigrade DIY-Store mineral oil ( e.g. 15 W 40) and argues: If the motor was rebuilt and clean inside ( the centrifuge on the crankshaft),
and with frequent oil-changes as recommended by BMW, you don't have to worry about floating dirt.
Then again we have some guys, which use high-grade synthetic oils....
hard to give a general recommedation - it depends on each individual engine-status, environmental conditions and driving style.
For my own experience, I started with multigrade, cheap DIY 15-W40 in the eighties, after the motor was rebuilt, then switched over to single grade SAE W40.
But it bothered me to remove the oil-pan every 2 or 3 oil-services to clean the inside off, and also this "compressor-oil" is very sticky, like hot tar.
It was no fun adjusting the valve clearance with everything sticking.
Now i switched back to 10-W40 since the last oil-service.
You can also use this for the gearbox and rear-drive, it woun't do no harm. But some say a GL3-specification gear-oil is better and appropriate for the latter two applications. We will see what the following posts recommend.

Regards,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Anulu am 13 August 2018, 16:17:50
I heard Oil.
Pleace wait! I need Chips an Beer....
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 13 August 2018, 19:58:31
The rear drive is not a hypoid drive....GL 4 and higher have some additives which damages your copper, bronce (?..in German: Buntmetall) inside the gearbox and reardrive
I can recommend the Book: "which oil?"  from Richard Michell, Veloce publishing....after reading this book I was astonished that my knowledge about oil is not up to date( it is from the eightys...last century ;D)....before reading I said the same as oldschool
read this and find your own opinion....i am tired to say always the same about oil
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 13 August 2018, 20:01:24
Zitat von: rolf am 13 August 2018, 19:58:31
The rear drive is not a hypoid drive....GL 4 and higher have some additives which damages your copper, bronce (?..in German: Buntmetall) inside the gearbox and reardrive
I can recommend the Book: "which oil?"  from Richard Michell, Veloce publishing....after reading this book I was astonished that my knowledge about oil is not up to date( it is from the eightys...last century ;D)....before reading I said the same as oldschool
read this and find your own opinion....i am tired to say always the same about oil
Hi Rolf

Do you have a link to where l could get this book, is it in English?

Thanks Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Schorsch am 13 August 2018, 20:44:52
Brian,

please excuse me, my Englisch is a Horror!

I have this Book in German.

In the Book is a notice

Originaltitel: ,,Which Oil ?"
Middle Farm Way
Dorchester DTI JAR
England



c Richard Michell Andy Veloce Publishing Ltd 2011

Schorsch
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 13 August 2018, 20:50:35
Zitat von: Schorsch am 13 August 2018, 20:44:52
Brian,

please excuse me, my Englisch is a Horror!

I have this Book in German.

In the Book is a notice

Originaltitel: ,,Which Oil ?"
Middle Farm Way
Dorchester DTI JAR
England



c Richard Michell Andy Veloce Publishing Ltd 2011

Schorsch
Thanks Schorsch

I have found it on Amazon and ordered the last copy. :)

Brian

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 14 August 2018, 11:00:25
Yes, talking about oils is always a slippery subject and can lead to some robust discussions! I have enjoyed Veteran and Vintage engines and machinery for 50 years or so and have never come across an engine damaged by modern oils and sometimes wonder if it is all a marketing con, however I am always interested in other opinions hence the question.

To continue the oil discussion, I service a few Harleys for friends and HD recommend their own oil for the engine and a separate oil for the chaincase and gearbox.......but also say you can run a diesel oil in the engine......however they also recommend HD Syn3 (which is a blended mineral synthetic mix) for the engine, chaincase and gearbox; mmm different options from the manufacturer. Other guys I know run ATF in the HD chaincase and gearbox and others run a red heavy duty hypoid oil in the gearbox and all claim smooth gear changes etc. My own experience is that all HD's have a stiff clunky gearchange regardless what oil is used which tells me that the oil makes no difference and none of them suffer any damage and the engine runs hot whatever oil you use so who knows....all smoke and mirrors I reckon.

I use Penrite oils in my Stationary engines and 1926 Chrysler (before I sold it) and will probably use Penrite Classic in the R26 - I don't know if Penrite is sold in Europe.

https://www.penriteoil.com.au/products/brands/classic?gclid=CjwKCAjw-8nbBRBnEiwAqWt1zRYleTxizntuCCY3i3Ypi8JLsRAlsFnjvGX38FODzyjdUwuEIpQMtRoCj-sQAvD_BwE

https://www.penriteoil.com.au/community/posts/hughesy-and-039-s-tech-tip-penrite-and-039-s-vintage-veteran-and-amp-classic-engine-oils-part-2

I have also used Lucas oil which seems ok

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 15 August 2018, 15:08:30
I modified the headlight globe holder today and made up a new clutch cable to replace the new one that was too short.

There were two ways I could have gone to fit the H4 globe to the headlight reflector:

1. Drill a couple of small holes in the body of the H4 and hold it in place with a spring clip and lose the Park Light or;

2. Modify the existing base and keep the functionality of the Park Light

I went for option 2 which turned out to be pretty easy.

I removed the bakelite lamp contact board and cut out the lamp holder so that the H4 globe would fit inside the holder. The small side tabs on the metal base had to be cut out along with two small vertical slots cut into the bottom to allow the H4 base to locate and a tab cut into the top to accommodate the top H4 Tab and it was also necessary to bend the bottom tabs on the H4 globe to fit inside the original base. I bent the ends of a spring to lock into the small holes on the reflector where the original spring clip was fitted and the spring wrapped around the base of the H4 globe to keep it securely in place and soldered the  Park globe  into the original location. Wiring was simple with some 8mm spade terminals and a solder connection for the Park light.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 15 August 2018, 15:13:01
These photos show the general wiring of the modified base, operating head light and current draw for the 60/55w H4 Globe.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 15 August 2018, 18:52:15
Is it 6 or 12 Volts ?

Regards,
Sascha
Titel: R26 Restoration by new member from Australia
Beitrag von: Anulu am 15 August 2018, 19:08:37
Ähh....

Hast gesehen, oder?

(https://uploads.tapatalk-cdn.com/20180815/03b18bdf853a62e18d3d0738e9ab3008.png)

UPD,s haben immer 12V ( wenn der Regler nicht kaputt ist )
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 15 August 2018, 19:22:20
Dödel ! 'türlich Ampere. Das kleine "A" im Display hab ich zwar nicht gesehen, aber dass Strom auf english "current draw" heisst, war mir klar.
Genau deswegen die Frage nach der Spannung. Eben um kurz zu überschlagen, ob so'ne Birne das "zieht", was draufsteht.
Nur UPD hatte ich nicht auf dem Schirm. Dann zieht das Fernlicht fast 70 Watt - siehsse !  da spielen wohl noch ein paar Übergangswiderstände im Schalter eine Rolle.
:-*

Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 16 August 2018, 03:12:23
Sascha - I have fitted a 12v Power Dynamo to the bike (it had previously been converted to 12 volt) and the globe is 55/60 watt hence the current draw shown.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 17 August 2018, 17:12:28
The more work I do on this bike the more I am convinced it was, or is still owned by the devil.

Tossed a coin to see who should do the "Lining" on the mudguards and tank and decided that a professional would be better than yours truely. So I took the mudguards and tank off to a specialist signwriter who knows his stuff, does a fantastic job and is a nice person as well. Picked up the guards and tank today, and took them home and fitted the rubber knee pads and found there was an issue with the lines being too close to the rubber knee pad on the tank...argh....this was all my fault as I did not provide any measurements or supply the rubber knee pads with the tank and am cross with myself......some beers are helping me though. Fred has done a really good job with the Lining and I was conciliatory when I rang him to explain my F..k up. Fred was good about it and recommended that I remove the lining before it hardens and bring it back to him with the Knee Pads And the BMW Badges.

Some photos after half a bottle of wine with dinner and 6 cans of Emu Bitter ...ish....Photos Tank1 and Tank2 show the problem, Removing the pin striping is self explanitory, Tank X is with the lining removed after a few beers and the drivers and passenger side photos show the rear mudguard fitted.


Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 17 August 2018, 17:17:03
That happens to us all Graham. :(

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 17 August 2018, 17:24:00
Yeah I know Brian, but it still pisses me off when I make simple mistakes.... I suppose that demonstrates that we are human; time for another beer and then off to bed  :D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 18 August 2018, 10:22:48
With regard to oils Graham I forgot I had this.

Brian (https://uploads.tapatalk-cdn.com/20180818/a19f7ae0e4ec61ceff0a9d21eeddd65a.jpg)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Anulu am 18 August 2018, 10:56:03
 :applaus: Gibt es das in Deutsch? Wäre was für meine Werkstattwand  ;D

Is this available in german? That would be something for my garage  8)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 18 August 2018, 11:10:26
Zitat von: Anulu am 18 August 2018, 10:56:03
:applaus: Gibt es das in Deutsch? Wäre was für meine Werkstattwand  ;D

Is this available in german? That would be something for my garage  8)
I bought the original from eBay but never seen them in German.  Seen loads for old cars but this is the only one I have seen for a motorcycle.
I was thinking of getting some t-shirts made. :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 August 2018, 14:07:36
That is a fantastic Servicing chart Brian and your idea of putting it on some T Shirts is a great idea.

Re the short clutch cable Brian, I measured a universal clutch cable type UC3 today and it is identical to the cable supplied by Ulis, so maybe that is why your clutch cable was short like mine

I took my tank back to Fred today to redo the lines and this time I fitted the knee pads and badges. After some deliberation I decided on where to to put the lines (Pinstripes) and if they are not as per the original layout I won't be redoing them. It was a PITA to remove them without damaging the tank paint and the more tanks I looked at, the more variation in the lines seemed to become the norm..... 

Got waylaid drinking beer when a mate popped over today however I managed to change the position of the PD kill relay and also ground off one of the corners of the PD regulator to make cable routing a bit easier. Should be able to finish off the wiring tomorrow and might even put some oil in the holes.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 18 August 2018, 14:51:49
I got my tank and mudguards done at different times and when I got the mudguards back the stripe width and spacing was different from the tank but the guy who did it agreed to correct it.
After driving up to Birmingham to pick them up l was the victim of a road rage and end up in hospital with 4 stiches in my lip. :(

Does this beat your mishap. :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 18 August 2018, 15:42:24
Wow, road rage, hospital, 4 stiches...I can't beat that and I bet you remember the sequence of events with good clarity.

When I go to pick up my tank I will make sure I don't upset any road users  ;)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 18 August 2018, 16:02:22
Zitat von: grahamjb am 18 August 2018, 15:42:24
Wow, road rage, hospital, 4 stiches...I can't beat that and I bet you remember the sequence of events with good clarity.

When I go to pick up my tank I will make sure I don't upset any road users  ;)
LOL :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 19 August 2018, 15:30:49
Didn't get as much done today as I was hoping to do...fitted the front mudguard that took longer than planned and fitted the rear wheel.
I then removed the rear wheel to grease the wheel and drive hub teeth that I had forgot to grease, refitted the rear wheel, wired up the taillight and picked up my tank from Fred who had redone the lines.

Then a mate came over for a beer......enough said

Photo below with both mudguards fitted and the tank sitting on the frame
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 21 August 2018, 14:04:52
I finished wiring the bike today, made a new axle for the rear brake adjust lever, tightened up all the nuts and bolts and put oil in all three holes.

I then went to fit the new exhaust pipe and discovered that it doesn't fit because the flange at the head end of the pipe is too big for the new exhaust pipe nut.....but guess what, the nut is too big to screw onto the head.....one step forward three steps back again.....sort of expected now.

I fitted the old exhaust pipe and nut and made up a temporary fuel tank from an empty Baked Beans can; put some petrol in the can and kicked the bike over over....a few encouraging fires and then the bike fired up which I was happy with until I noticed oil running down the right hand side of the motor. The oil was leaking from the head gasket at a reasonable rate so I switched off the bike and ripped off the head.

Not happy with the oil leak and after removing the head it is obvious why oil is pissing out.....the head gasket doesn't seal the oil groove in the head. Check out the attached photo and you will see that one "O"  ring in the middle will not seal along the length of the of the oil groove.

Can someone please advise where I can buy the correct head gasket for this bike or do you have to glue the head gasket on? Having an "O" ring on the head gasket in the middle of the oil groove makes no sense to me.

Two photos below....the first one attempts to show the oil leak with the engine running but it is hard to see. The second photo shows the head and head gasket and why it leaks oil.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Borgward am 21 August 2018, 15:24:29
Is there any reason for this chanel?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 21 August 2018, 15:30:20
I presume it is for oil overflow?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 21 August 2018, 15:38:27
I think it's an abbreviation for the oil, in case the stock-routing throgh the Rockerboss-seats is clogged.
But it's a bit odd, that this was only done for the outlet-rocker.
Maybe the pre-owner wanted to achieve more cooling there, as it get's hotter than the intake-rocker.
Just an idea.

Regards,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 21 August 2018, 15:41:58
I haven't seen any other R26 heads so I don't know what is factory or modified - I would think a head gasket without the "O" ring would seal better on the channel.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: 4Taktix am 21 August 2018, 16:01:39
I personally prefer the head gaskets without O-rings in general, as the Headbolts can be tightened with the stock torque.
O-Ring-gaskets require more torque up to 60 Nm, which may "squeeze" the Head around the bolts.
You can notice that, when the bolts are hard to insert, until they reach the thread.
However, I'd pull the Rockerbosses out and clean the channels inside then and also in their seats (if not yet done) and take a stock gasket.
I'd also block this "Custom-Channel" with an appropriate piece of an old O-Ring e.g. or any heat-proof putty/sealant.

Regards,
Sascha
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 21 August 2018, 16:11:21
Thanks for the reply Sascha and the rocker bosses are all clean.

Have just looked at Salis's site and they sell head gaskets with and without the embedded "O" rings. Interestingly a minimum head torque of 50Nm is quoted for the head gaskets with the "O" rings which translates to 37 ft pounds.....12 ft pounds more than the factory 25 ft pounds that I torqued my head to.

I will order a new standard gasket and as an exercise I will re-torque the head to 37 ft pounds tomorrow and see if it stops the oil leak.

Cheers
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 21 August 2018, 16:16:48
Graham, here is a picture of the reconditioned head to go on my R26.

I hope it helps.(https://uploads.tapatalk-cdn.com/20180821/66c3594617c729b6f7edf0530e90fcfa.jpg)

Sent by me using tapety talky
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 21 August 2018, 17:56:03
Hi Brian,

whats that for a ridge in your cylinder head?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 21 August 2018, 17:59:43
Zitat von: Heiko am 21 August 2018, 17:56:03
Hi Brian,

whats that for a ridge in your cylinder head?
Just a small mark that the camera has distorted and made look very deep.

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 21 August 2018, 18:36:07
Okay,

approved.  ;D ;)


Heiko

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 21 August 2018, 18:38:41
Zitat von: Heiko am 21 August 2018, 18:36:07
Okay,

approved.  ;D ;)


Heiko
Thank you kindly Sir. :) :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Heiko am 21 August 2018, 19:01:41
 ;)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 August 2018, 03:18:28
Thanks for the replys guys, it seems that I might have to weld up the non standard section of channel on the head.......I still don't understand why the gasket maker put on "O" ring on the hole over the channel.

Cheers
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 August 2018, 15:37:58
Decided to not weld the modified channel in the head because the holes at each end of the channel go into the head bolt tubes  and I don't think it would make a difference if I could get a gasket that would seal properly; i.e. without the neoprene rings on all but two head bolt holes.

By chance a specialist BMW dealer here in Perth had an R25 gasket without the neoprene rings so I went and bought it. When I got home it didn't fit over the barrel lip because the gasket bore size was 74mm whereas the the R26 gasket (with the neoprene rings) has a bore size of 79.5mm. Easy fix - I marked out the R25 gasket bore using the R26 gasket as a template and used a sanding drum to enlarge the gasket bore size to 79.5mm.
Whilst modifying the R25 gasket I observed that both gaskets are not a great fit around the pushrod tube holes and the R26 gasket is worse than the R25 gasket - see photo Poor Gasket fit.

I refitted the head using the modified R25 head gasket, put some more petrol in my Baked Beans petrol tank and started the bike. I kept the revs high to keep the oil pressure at maximum while checking for a repeat oil leak.

All was good so the next job is to recheck the head bolt torque, tune the carburettor, recheck all fasteners for tightness, fit the petrol tank and go riding I hope.

Photos below including a poor video that shows the bike engine running.

https://youtu.be/53NB2efPodI

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 22 August 2018, 16:06:48
Sounds good. :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 August 2018, 16:10:05
Thanks Brian - Tuning the carby may prove interesting  :)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 22 August 2018, 16:10:21
Congratulations Graham! Almost done!

The poor fit of some gaskets is a known pitty. Now let's finish it for a ride!!!

BR

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 22 August 2018, 16:25:05
Thanks Steffen....I am keen to get it out on the road  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 28 August 2018, 15:28:23
Am still finishing off little bits and pieces & nearly have the bike finished.

Spent ages making the new front exhaust pipe fit - the flange angle at the head end of the pipe was incorrect resulting in the pipe kicking out from the side of the bike by the width of the pipe where the muffler joins. I only had two options to fix this; I could re-bend the pipe and crack the chrome plating or rework the flange at the head end of the pipe and hope that I don't damage the chrome plating. Obviously I chose the latter option. I taped a line identifying the 3.5mm section of pipe that had to be reworked and did a series of cuts in the flanged end (that had been ground down to fit inside the exhaust pipe nut) and then made a new flange section on the end of the pipe using a ball peen hammer whilst supporting the pipe on foam and my lap to prevent damage to the chrome plating. It took ages to do and the pipe now fits up nicely to the head and the side of the bike (see photo "exhaust pipe mod"). The finished pipe flange isn't clear in photo "EP modded" but hopefully you can make out that the flange is on an angle and that there is also a pipe section coming from inside the pipe that locates inside the head to ensure correct alignment. Photo "EP on the Bike" shows the new exhaust pipe on the bike using the old exhaust pipe nut to hold it in place.

Went to bolt the tank on and discovered that the "new" front tank bolt is too short - see tank bolt photo and you will see that the bolt does not protude where the nut should go....

The other photos show the current state of the bike with the tank sitting in position.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 28 August 2018, 15:46:13
Here are the other photos and my apologies if they are upside down; they are the correct way up on my computer....I cannot fix this as I am from down under.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 28 August 2018, 19:21:49
Graham,

as you know I am following you and your restoration since long time. Congrats!!! Very, very well done.  :respekt: :respekt: :respekt: Watching the progress over time I knew the result would be something like this. I'd say, an impressive piece of art with creative solutions, systematically done with the right technical brain. Did you start her already or will this be the weekend fun? You must film it. I'd like to be there.

Regards
Tom

PS
By the way I was able to look at your photos from the right angle, not upside down. I guess I am also down under here.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 28 August 2018, 20:41:36
Graham, what a beauty!!! My biggest respect for your creative diy solutions and letting us participate on every detail. I hope you can enjoy riding soon, and same as building it up  :D

best regards

Steffen
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 28 August 2018, 20:47:35
Brilliant.  :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 29 August 2018, 12:43:46
Thanks for the kind words gents  :)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 01 September 2018, 14:54:38
Went for a test ride up and down my street today - still have to adjust a few things but overall the bike rides ok

https://youtu.be/BGUlFU64ChA

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 01 September 2018, 19:28:32
Graham,

fuckin' cool! She's running.  :applaus: :applaus: :applaus: and  :respekt:

You can be very proud. I wouldn't worry about the remaining adjustments. The final carb setting is nothing difficult, but time consuming. The only thing you need is a handful of nozzles, some tools, a flat road, a digital speedometer (perhaps your cell phone will do) and about half a day to waste for it.

Good luck and all the best wishes from Africa!
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 01 September 2018, 22:43:53
Graham!! On the road!! Congratulations, what a moment. I'm sharing the thrill with you  :juhuu:
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: bwprice100 am 01 September 2018, 22:48:53
Sounds very smooth Graham and congratulations.  :)

Sent by me using tapety talky

Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 September 2018, 05:25:29
Thanks fellas, went for another couple of short rides today after a bit of carby tuning, clutch and brake adjusting and have now racked up a massive 11km on the odometer  ;D

Was coming down the street and the wife was out the front with her iPhone - two more short putt putt videos of the bike in motion and this time I am wearing a helmet.......even got the bike up to 60km/h

https://youtu.be/MikcMFXkj-M

https://youtu.be/3gwg5jSybXs
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Taz am 02 September 2018, 13:13:31
 :applaus: I can only join the chorus....she's a real beauty and sounds great already...it is a pity that we will most probably never see her at the Edersee meeting :traurig:

best wishes, Taz
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 02 September 2018, 13:24:29
Thanks Taz, the bike has to stay here in Western Australian so I can show people a good looking and painfully slow motorbike  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Taz am 02 September 2018, 14:28:05
Zitat von: grahamjb am 02 September 2018, 13:24:29
... so I can show people a ... painfully slow motorbike  ;D ...

To answer with Dominic Toretto's words: "The only thing that matters is who is behind the handlebars!"  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 02 September 2018, 19:31:07
Graham,

"painfully slow" ???? Make peace with it. I agree, it is a different way of riding a bike. I still use my GS for other trips in Africa. Many people, especially the older ones in the rural areas and the little villages will love you for riding this painfully slow bike. And one thing I must say is the following. I have never ever missed speed riding one of my oldtimers. Just decelerate, enjoy the landscape and the people around you. After very short time you'll love it, the relaxed way of biking.

Regards
Tom
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 September 2018, 03:14:22
Can't disagree with what you say Tom and although painfully slow, it is an enjoyable bike to ride and would be perfect to ride in Bali which is my second home. I love engaging second gear which straightens your back...... ;D

Speaking of Bali there is a Dover White R26 used as a shop display in a Tattoo shop and the owner won't sell it to me  :(

Have just finished re-adjusting the handlebars to better suit my arm reach  :)

The attached photo shows the Bali R26 (photo is from FB)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Jollyjester am 03 September 2018, 08:43:40
It is a good to see you on the road at last, a but it will be A long and winding road to reach Nirvana, but the journey is another word for having fun.  It's the tinkering, it appears to me that with the very newish BMWs, this has been lost, you cannot tinker, just expensive annoying faults.

The best bit of your videos was actually the 'bird song'

My wife and I spent six weeks in Australia 96-7 & 2000-1.  We twice visited the Hunter Valley to sample the local produce,  but the bird song was something else again, there was a scruffy bird I think you call a magpie,  but it song was absolutely wonderful, and of course the kookaburra, early morning and late at night, certainly made me laugh.

We have Rellies in Perth, place called Butler.

One other thing, every time we went there, "Elvis was Live' in Freeo.  Did not go to see him.

The best bits was we were in NSW, 20 miles from Grafton, and there was a council election.

Placard on the tree, picture the man's face, and his slogan was " Joe Blow Your Local Bloke "

Wonderful country, over every hill, it's a different land.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 03 September 2018, 10:55:09
Yes the Magpies or "Maggies" as we refer to them have a melodic warble which often goes all night when they are mating and they also are good at swooping you when nesting. They can be tamed easily with food and one of the golf courses where I play has a lot of maggies that follow particular players for food.
The Kookaburra is not native to Western Australia and is seen as a pest but it does have a catchy "Laugh" - My personal favourite is the Crow  or more correctly named Raven as they are very smart birds and have a lazy get stuffed type call. My wife hates them because they are a good scavenger and she has memories of them pecking out the eyes of dead lambs on the farm she used to live on.

And we have superior local produce in WA with the closest vineyard and brewery about 5km from my house  ;D

Your rellies are 40km north of where I live in Morley (8km north of Perth)
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 23 Oktober 2018, 06:13:42
I have just returned from Bali and followed up on this R26 in a tattoo shop that was previously posted on facebook.

It is a 1957 model according to the ID plate and the engine and frame numbers match - It seems to be in reasonable condition apart from the Japanese carburettor and the dark grey finish on the motor/gearbox and it is still licenced.
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Herculestom am 23 Oktober 2018, 06:37:03
does he want to sell now?
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 24 Oktober 2018, 03:51:43
Unfortunately it is not for sale as it gets a lot of new customers into the Tattoo shop
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: OldsCool! am 24 Oktober 2018, 14:31:49
So what's your new tatoo Graham?  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 25 Oktober 2018, 04:42:29
No tattoos for me.....
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Einzylindär am 25 Oktober 2018, 08:04:17
But then you could watch the bike.....!  ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 13 Januar 2020, 09:01:53
Fellow Beemers

My little R26 is still going nicely and people are still being eaten by sharks in Western Australia while the country is on fire....

My eldest son will be getting married in Amsterdam late December this year and since my wife and I will be paying for his wedding, we will also be touring parts of Europe and the British Isles. My question is are there any good BMW or other Motorcycle museums that I should look at while I am in the top part of the planet?

All suggestions and recommendations are appreciated.

Cheers
Graham
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Taz am 13 Januar 2020, 12:20:44
Hello Graham.

While in Europe you might want to combine pleasure with fun... by considering to visit the BMW-Museum in Munich (see https://www.bmw-welt.com/en/locations/museum.html for details) .... as this is quite a few miles south of Amsterdam you will have the opportunity to enjoy the german autobahn (famous for its non-existing speed-limit over long stretches as well as for its obscene number of construction sites).

Along the way you will find the Nuremburg museum for industrial culture (https://museums.nuernberg.de/museum-for-industrial-culture/) which not only provides a good insight into postwar Germany, but also honours the rich motorcycle-related history of Nuremberg as one of the hubs of motorcycle production from the early days on until the demise of the industry in the 60s with a large collection of locally built motorcycles (not too many BMWs, but beauties as well)....including the sole survivor of the ERMAG brand.

All the best, Taz (I will _not_ use my first name in the presence of Autralian people!)

PS: In case you would decide to come down here...let me know, maybe we can arange for a meeting...

PPS: Top part? Seriously? I think you are holding the world map upside down... ;D
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: rolf am 13 Januar 2020, 13:56:00
" people are still being eaten by sharks in Western Australia while the country is on fire.."

;D...with a little smell of misbehavior
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: Taz am 13 Januar 2020, 14:05:17
Re. the fires...I heard that they finally were able to take some of that evil carbon dioxide (that, according to well-informed European press, was behind all those terrible fires) into custody...bright police guys as these nasty molecules did look like ordinary human asshole arsonists to me...
Titel: Re: R26 Restoration by new member from Australia
Beitrag von: grahamjb am 30 Januar 2020, 12:52:43
Thanks for the replies fellas