Around 2000 rpm the engine does not feel as smooth as it should. Power and responsiveness are good.

The flywheel is an aluminum Scheifer unit. I am suspicious that I am dealing with a flywheel balance issue, or perhaps pressure plate/clutch balance. The input seal to the transmission is leaking oil, so I am prepared to do a teardown, replace clutch components, and have the flywheel balanced (assuming it’s in good enough condition to do so)—but I want to make sure I have covered the other reasonable possibilities before diving in.

Any suggestions for what else I should check?



1954 Crestline Victoria 312 4-bbl, 3-speed overdrive