[Jim Brierley]

Terry is right about turning or grinding the flange, I run full-pressure race engines and had one that the flywheel kept loosening. My solution was to have the flange hard-chromed and ground .002" oversize to insure a tight fitting flywheel, end of problem. I also add 2 extra flywheel bolts for insurance, and never use stock bolts, they are old and likely stressed. Be careful when using new, aftermarket bolts, check that they aren't too long and damage the cap and slinger.