flywheel

[djwlbk]

I have a 1964 40 hp big twin. Somewhere in this motors life the crank was drilled and threaded to use a bolt to hold the flywheel on. What are my chances of holding this flywheel on and not shearing the key?

 

[wilde1j]

Re: flywheel

No way of knowing. Better chance of survival and ability to handle torque requirement if a Gr 8 bolt.