Main bearings

[Joker_Bones]

This is a single, it had stamping inside each case.

IMG_20230723_151637.jpg

IMG_20230723_151653.jpg

[RodneyK]

Thank you. I believe the cases were used together in the past and, at this stage, I cannot verify they are a matched set. Still, how can I determine whether the crankshaft is free enough to continue?

[g80csp11]

were conrods free to turn and center web before you assembled it in to crankcase

[RodneyK]

Con rods are good. It got stiff when I tightened down the web and worse when I applied the timing side case. I’m pretty sure the drive side case was warped from welding and I will have to discard it. Please see my inquiry about my spare case. Thanks for your interest.