R50 crankcase oilways

[Ian MacDonald]

Does anyone have the information for drilling the additional oilways in a /1 crankcase to provide lubrication to both cylinders as the later /2 crankcases

[Josef Heft]

Hello Jan!
You have to look into the "BMW-Veteranenclub messages" No.1/2006.
Here you will find a report from Hans-Dieter Petersmeier with the exact guidance.
If you cant find out the article give me a message and I will send you a copy.
Regards
Josef