Re: two heads are better than one.

Posted by Gary On 2013/5/3 21:41:27

There is a possibility that the thrust bearing has worn to the point that the crankshaft is moving forward or backward excessively and allowing the flywheel or clutch assembly to hit somewhere on the back of the engine or inside the bell housing. I would pretty much rule out the tranny and the rearend and start by raising the car up evenly front and rear with a lift or by using a jack and jack stands and place the tranny in neutral. then remove the inspection cover that bolts to the lower bell housing and using the correctly sized socket and ratchet, start slowly turning the crankshaft and see if it makes any noise or comes in contact with something when you turn it by hand. If you can't duplicate the problem that way then fire it up and see if you can get it to do it by running it in neutral. If it does then try to locate the cause using a length of hose as a stethoscope.