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piston orientation
Re: piston orientation
Thanks again
'69 R69US
Re: piston orientation
'69 R69US
- wa1nca
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Re: piston orientation
Quote:
To be clear, for people reading the forum and to ensure that the proper information is disseminated, some models have an offset piston, while others do not.
See https://vintagebmw.org/library_data/Wor ... R60S69.pdf Page 26 of the PDF, 25 of the doc. R 50 and R 50 S have the offset while the R 60 and R 69 S do not.
For the R 27 see https://vintagebmw.org/library_data/Wor ... rm_R27.pdf on page #23 pf the PDF, page 21 of the document, both the R 26 and the R 27 have offset rod bores in the pistons on the thrust side.
I hope this helps clear this up.
James Wonder
Long Island, New York
Top
I replaced my R27 piston a few years ago from a well know vendor here in the US
It did not have a directional arrow, Called the vendor and was told it didn't matter
Also from Salis website it clearly states the their R27 Kolbenschmidt piston has no offset
https://bmwclassicmotorcycles.com/index ... 50-mm.html
How concerned should I be
Tommy
54 R51/3, 55 R50/Velorex 560 sidecar, 64 R27, 68 R69US, 75 R75/6
Ashfield, Ma
USA
- jwonder
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Re: piston orientation
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- Rodolfo850
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- wa1nca
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Re: piston orientation
Cant remember if mine has a vorn marking on replacement but will check and post back results
Tommy
54 R51/3, 55 R50/Velorex 560 sidecar, 64 R27, 68 R69US, 75 R75/6
Ashfield, Ma
USA