Im pretty sure my friend is your engine builder (Dale)here in Washington.He told me the washer and the bolt were dead soft when he rockwell tested them. He is replacing both washer and bolt as far as i rememberOriginally posted by TurboTR
Yeah in fact my engine guy made a custom, extra thick, tool steel washer for this. You would think that a soft washer there and loss of clamp torque could be a real problem. Maybe a factor in some of the reported key breakage?
TurboTR

