okay....im going to replace my clutch. someone told me that it might be the that im hearing. i need ot get a new one anyways (80k miles on the original). ill see if that helps. one very key clue is that when i first start my car, it's quite, because im holding down the clutch. if i put the car in neutral and let go of the cluth, it starts to make a rubing sound. i hope this works. if not, new head.