Hi Paul,

I've had a similar problem with my 87 GL. I went to 3 broken belts in 4
weeks. Eventually, I tracked the problem down, not due to a tight belt but a
loose one.

After installing the new belt, I verified the tension and went on my merry
way. What I didn't know is that after a day or so, the belt would become just
loose enough for a very slight slip which was causing undue wear.

Solution: Install new belt. Drive one or two days. Retightened belt. No more
premature wear.

Ben T
San Francisco