Somewhere around 30 to 40% of the crankshafts are good,usually it’s not the center main but the crank pins that are bad, The metallurgy wasn’t that good in the beginning and they had a tendency of rusting from sitting also, sometimes they can be grounded and the bearings can be resized. 32 definitely referred to the racing HP . Made in 1929-31 not sure on 1932? I might have a spare crankshaft but I won’t know until I build what I need to, which will be a while because I have other motors ahead of them….
Rotary valve Johnson’s Rule!
