Broken Alternator Belt

courtesy of Bob, The Auto Answer Man

Hello Bob,
I have a question about an alternator belt. It seem that my 1982 GMC Allegro RV keeps going through belts. I drove for 100 miles and then it broke in two. So, I replaced it. I then drove another, maybe, 5 miles and it broke again. Can you tell me why my alternator belt keeps breaking?
Thank you,

My first guess would be improper alignment of the alternator pulley to the rest of the pulleys. Also, make sure that you do not over tension the belt. In addition to premature belt wear, it will cause the bearings inside the alternator to wear out faster.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man

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