Got 2pcs to work with, at the moment.
Guess which one is the better. I thought it was the right one but it's the one to the left.
The right one was much more rusty than the left when I started. After degreasing and brushing off the rust with a brass wire brush I detected wear in one of the crank pin bearings.
Maybe it's the same with the other one. Hope not. Probably will have to change crank pin and rods, preferrably to stronger rods with larger piston pins. Just have to find such rods first...
Crankshaft Service Data