Have you checked the front vibration damper,AKA the harmonic balancer. That dampener is capable of a lot of problems if the primary or big bolt gets a tad loose. Also the smaller studs holding the pulleys to the dampener can get loose and or crack off. I would recommend that with the engine running you really watch the motion down there at the very lower part of the front of the engine to see if any side motion is evident. You just don't want that assembly to get loose or it will cost you an engine.

__________________
Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!