Check the bolt holding the alternator to the engine. It's probably worked the nut loose. You still have tension bolt holding the belt on but it's wobbling the whole alternator. -- Andrew L. Duane (JOT-7) duane@zk3.dec.com Digital Equipment Corporation (603)-881-1294 110 Spit Brook Road M/S ZKO3-3/U14 Nashua, NH 03062-2698 Only my cat shares my opinions, and she's too heavy to care.