Vintage BMW Motorcycle Owners

what part?

Goro and James, I agree that the removal of a BMW R51/2 generator from an installed engine risks loosing hold of the timing chain which is a virtual guarantee that one or both camshafts will no longer be correctly timed if the generator is reinstalled blindly without direct visualization of the timi...

Hello again Grant,
Please resend your email. My computer is staggering under the weight of my next book, this one on the BMW R5, R51 and R51/2 two camshaft engine and under the strain I've managed to lose your email. Thank you! Christopher

Grant,
Sorry, but i gave you an old email address.
Please use brrngmtrwkspubs@breezeline.net
Thank you.
Christopher

Grant,
I'm pretty sure I have two never installed bearing bolts you are in need of.
Please email me at <brrngmtrwks@breezeline.net>
Christopher Betjemann
Barrington Motor Works Publications

Hello Rob, Not such a longshot after all. We just completed a two year build of a 1950 R51/2 sport bike while working on a restoration and service manual for the R51/2 and have an extra crankshaft as well as a quite a few other R51/2 parts including a rebuilt transmission, rebuilt generator and comp...

Install the rear main bearing oil baffle (p/n 11 21 0 016 252) against the rear main bearing with the concave surface of the baffle facing away from the bearing.

Install the seal with the spring side toward the bearing.

P Museum

camshaft hole ?