In order to try to locate the vibration in my engine, I plan to remove the clutch and pressure plate and run the engine to see if that changes anything. (I doubt it as the vibration is present with the clutch engaged or disengaged). Next, I plan to remove the flywheel and see if that makes a difference, but I can't remember if the '57 235 passenger car engine may be balanced in some way by the flywheel. If so, running the engine with it removed won't tell me anything.
Thanks,
