Posted by Steve on May 11, 1998 at 20:18:14:
In Reply to: Flywheel for 440 '78 w-200 4sp posted by G.Hollon on May 11, 1998 at 10:51:42:
Has your engine ever been rebuilt? If so, was the crank replaced? If an original cast crank is replaced with a forged crank or visa-versa, an unfixable vibration may result. I would also check for a bad harmonic balancer.
Good Luck!!!