What would you suggest for go/no-go?
few crank shafts laying here in the office-
With mic's: .7505, one only over 3/4,
most below, but closer to .750, down to .7475 smallest found
Agree .7502 sounds good
Believe it or not the Sparx rotors were made to be an interference fit by design.
Believe it or not the Sparx rotors were made to be an interference fit by design.
I used one on a Trumpet after reaming it.
I’d never buy one again nor use them on our beloved Nortons.