How are you going to get a repair sleeve over the flywheel flange? The late-model crankshafts that use a 1-piece seal might work with a repair sleeve, but I just can't imagine how to make that repair work with an early style crank.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!