cam pulleys dont usually give problems unless its loose? most likely tensioner, or roller, or water pump siezing or breaking up. need to time up, and remove belt. it should be obvious which one is faulty when belt removed. (most likely tensioner especially if belt starting to shred). can get full kit for piece of mind. i wouldnt run it anymore in case belt snaps and ruins your engine.
me
June 2009
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