"Alistair Ross" wrote in message
...
Anyone know the formula, rule of thumb regarding the shrink fit tolerance
for fitting starter rings to flywheels? My feeling is to leave the recess
on the flywheel 'up' by say 0.010" (.25mm) so as the starter ring cools it
'nips' up, without too much stress on the ring but with enough 'nip' so as
not to work loose or spin.

ttfn....Alistair



No, but years ago when I made a steel flywheel I shrunk the ring gear on and
then put a few small mig welds on it to make sure it stayed put.