R24 and r25 gearbox casing compatibility

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alkis
Posts: 16
Joined: Thu Mar 28, 2013 9:50 am

R24 and r25 gearbox casing compatibility

Post by alkis »

Hello,

I am restoring an R24 gearbox that has a big crack from an old crash. I am trying to tig weld it but i have a lot of porosity and some heat cracks. I will send it to a proffessional welder as i think that it is over my abilities.
My question is this. If the gearbox casing is not repairable can i use the casing from an R25? are they different?

Thanks in advance!

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wa1nca
Posts: 862
Joined: Thu Sep 27, 2012 5:15 pm
Location: Ashfield Ma

Re: R24 and r25 gearbox casing compatibility

Post by wa1nca »

Most likely not
Salis site doesnt list a part # for the r24
Lists different part # for r25,r25/2,r25/3

https://www.bmwclassicmotorcycles.com/p ... housing-2/

tommy
Tommy Byrnes
54 R51/3 55 R50/Velorex 560 sidecar 64 R27 68 R69US 75 R75/6
Ashfield, Ma
USA

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wa1nca
Posts: 862
Joined: Thu Sep 27, 2012 5:15 pm
Location: Ashfield Ma

Re: R24 and r25 gearbox casing compatibility

Post by wa1nca »

you can find a parts manual for r24,r25,r25/2,r25/3,r26 if you go into knowledge base select library and type in 25/3
file:///C:/Users/wa1nc/AppData/Local/Temp/PartsManual_R24_1956_German_Rigid_R25R25-2R25-3R26-2.pdf

All have a different part # for transmission cases
tommy
Tommy Byrnes
54 R51/3 55 R50/Velorex 560 sidecar 64 R27 68 R69US 75 R75/6
Ashfield, Ma
USA

alkis
Posts: 16
Joined: Thu Mar 28, 2013 9:50 am

Re: R24 and r25 gearbox casing compatibility

Post by alkis »

Thanks for the information. So it seems i am stuck with this specific case. I hope a professional welder can fix it.

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bm68andreas
Posts: 31
Joined: Thu Jan 01, 2015 3:21 pm

Re: R24 and r25 gearbox casing compatibility

Post by bm68andreas »

Alkis the case is the same with R25 1950 model..
i can help you with it...
Andreas
[iKONTOGIANIS][/i]

alkis
Posts: 16
Joined: Thu Mar 28, 2013 9:50 am

Re: R24 and r25 gearbox casing compatibility

Post by alkis »

But they have different serial numbers and also some differences in the bearings as i remember. I know that you can use a complete R25 gearbox on a R24 motor but is it possible to use just the casing with the shafts of the r 24?

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