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Jussns
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Estonia
Joined: 12/11/2017
Posts: 16

Hello eweryone!

I’m restoring 1938 r51 and I looking pre war r51 rear plunger shock absorbent,left side.
I have one but this is post war R 51/2,3.Maybe someone want to exchange it ?.
Allsou I dont have amal fischer 5/423 carbs,gearbox housing and more some important parts,but I have few R5 parts what I would love to change pre war r51

Kind regards

Aarne

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Jussns
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Estonia
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Posts: 16
The same story is my front

The same story is my front fork lower part.
Does enyone need to excange it or sell original postwar part?

Aarne

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Jussns
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Estonia
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Posts: 16
Fork detail

Jussns wrote:

The same story is my front fork lower part.
Does enyone need to excange it or sell original postwar part?

Aarne

Jussns wrote:

The same story is my front fork lower part.
Does enyone need to excange it or sell original postwar part?

Aarne

Lilltle mistake,I need pre war lower part.

ogre
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UK
Joined: 03/28/2015
Posts: 44
bmw r5 parts

Hi,
What kind of r5 parts do you have?

I might have gearbox case Smile

Jussns
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Estonia
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Posts: 16
Bmw r5 parts

Hello!
I’m veri intrested r51 gearbox housing,one is ebay now,buts its seems bad,maybe price don’t jump very high.

I have early 36 r5 right side cylinder head without any engin numbers. and one pair cylinders,both are same nr ****

Kind regards
Aarne

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Jussns
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Estonia
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Posts: 16
Hello!I have a lot of

Hello!

I have a lot of questions about pre war r51.I started this project zero and this is my first bmw project, its very diffcult to restore this motorcycle because here in the east of Europa there are not many of this bmw models.Everywhere and eweryones have a lot of Russian bikes and parts but I don’t want use any Russian parts.All my information of this bike comes internet.

Question about headlight and main beam switch: I have seen two different type,one switch is left side and another is right side on the gasroll and cable hole is same side on the headlight. My engine nr is 504890 without OZ 80. Which is the correct combination of this numbers?

I dont have headlight jet,but i need it!

Ogre,do you can send my the pictures of this gearbox housing?

Kind regards

Aarne
jussns@gmail.com

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lui
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uk
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Posts: 20
hello ,igot a gearbox house

hello ,igot a gearbox house to swap if you interesting.regards

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Jussns
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Estonia
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Posts: 16
Hello Lui ! Is there are

Hello Lui !

Is there are screw hole on the right side in the airfilter ring? I think r51 dont have this hole there?

Kind regards

ogre
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Hi, will send pictures

Hi, will send pictures tomorrow but mine is cutted aswell Confused any way might good for you.

That hole for airfilter screw is correct on left hand side. Lui great pictures by the way Tongue

My R51 1939 got light switch on left hand side.

Jussns
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Posts: 16
Valve covers

Hi!

I have a two differnt typs valve covers,both are same part nr but on cover is m16 breather nut hole and one is m12(its seems original). Is this m12 hole cover are r66 ore what?

Kind regards

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bm68andreas
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The one with the small hole

The one with the small hole is from an R5 and the other one is from an R51 or R66.

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Jussns
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Hi! Thank you for replay! Now

Hi!

Thank you for replay!
Now I have a problem with one cover,I have breathern nuts with m16 and its not correct to modificate r5 cover.

Regards

Jussns
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Posts: 16
I see that my engine case is

I see that my engine case is marked some kind of stamp and nr “12”
Does it mean something,or its nothing?
it is located right side engine,near of oil pump shaft hole.

Regards

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Jussns
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Estonia
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Hi! Question about bolts. My

Hi!

Question about bolts.
My engine there was NSF bolts,is this bolts and washers are original ore there must be ribe bolts?

Regards

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Jussns
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Does anyone knows is this

Does anyone knows is this gearshifter are corrected shape to 38 r51?
I have been looking old pictures and dont have seen this before.

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avi
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israel
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THE LEFT ONE NOT CORRECT.

THE LEFT ONE NOT CORRECT.

DasMotorrad
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Modena - Italy
Joined: 04/03/2012
Posts: 58
NSF

Jussns wrote:

Hi!

Question about bolts.
My engine there was NSF bolts,is this bolts and washers are original ore there must be ribe bolts?

Regards

there is a various bolts for prewar, NSF it's ok but not for all. Ribe ok but with prewar stamp on top. for the engine you can keep NSF.
can you think to replace this NSF? they are damaged a lot...

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Andrea - Modena - Italy
R only R of Munich

Jussns
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Hello and thanks to

Hello and thanks to reply!

Yes this old bolts what i have I want to use so much as possible. Little defect is ok,its old Smile
Btw one Hungarian seller in ebay selling every month even week Ribe Z8G bolts,is these are ok ?

Regards!

Jussns
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Posts: 16
Little progress with

Little progress with cylinders ,must think how to paint theses.And starting chapter of transmission.

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DasMotorrad
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Modena - Italy
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Posts: 58
Ribe Z8G

Jussns wrote:

Hello and thanks to reply!

Btw one Hungarian seller in ebay selling every month even week Ribe Z8G bolts,is these are ok ?

Regards!

no, I think they are reproduction and not original.

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Andrea - Modena - Italy
R only R of Munich

Jussns
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Estonia
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Posts: 16
Maindrive

Hello everyone!

Which one is correct maindrive shaft 1938 r51?
Is it 26 teeth or this on the pictures?.
Problem is that my brake drums are 26 teeth.

Regards

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Jussns
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Posts: 16
Spokes

Hello everyone!

Does anybody know where i get spokes? New or even old used!
3.0mm in the middle
3.7mm in the ends
6.6mm is nut
7.0mm is wheel rim
4.0mm is wheel hub

That’s the reason why I can’t use thicker spokes.
Many thanks every information!

Regards

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brown3459
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VBMWMO #3459
Joined: 10/27/2006
Posts: 78
Buchanans in Los Angeles

Buchanans in Los Angeles

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Barry Brown
Canada

speight1823
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VBMWMO #1823
Joined: 10/27/2006
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R12 Crankshaft overhaul in UK

Can anyone recommend a company in the UK for repair of an R12 crankshaft ?
Thanks
Bill

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