I picked up this 1972 BMW R75/5 on Craigslist in a completely compulsive purchase. It didn't even run. Blown out right side con rod bearing.
Tore the engine down and decided that the crank was just too fucked to use, so I bought a good '74 R75/6 block from a ADVrider forum member for a $150 and decided to build that instead.
Almost got the engine completed. New rods, bearings, pistons, rings, clutch, etc. I'll post more once I get the newly painted fenders and Corbin seat next week.