I would also check the belt tensioner shock. Try getting a piece of wood and apply pressure at the top round part of shock (while engine is running and tapping). If the tapping stops there is an easy fix for this. Take off the 13mm bolt and put some teflon tape around the bolt (only the part that goes into the shock leave room for nut). Make sure it's a tight fit.
[Edited by vinamg on 06-20-2001 at 07:26 AM]