Something is locking up and ruining the belt. Look for a pulley that is not in perfect alignment with the others. It could be turned a little in relation to the belt, or it could be leaning out a little. It's normal for the tensioner pulley to bounce back and forth a little, but an inch might be more than normal. You might want to remove the belt and spin the pulleys by hand to see if one is tight. GM has had a huge problem with their generators. Beside the far-too-common electrical failures, it is also real common for the bearings to lock up and cause the belt to shred.
Wednesday, April 13th, 2011 AT 2:06 AM