Does anyone know the size and length of the 4 bolts that attach the two pulleys to the flange on the water pump for a 4AFE in a 1990 Corolla?
A few months ago, an unusual engine noise alerted me to a harmonic balancer which had a noticeable wobble in it. I kept an eye on it but did not have the time or money to fix it. Well, recently the bolts attaching the water pump pulleys sheared off. I suspect that one or more of them had previously worked loose due to the wobbly harmonic balancer and the remaining bolts couldn't handle the torque on their own.
I can't tell what size they are, but they're Toyota part # 90080-11589 (bolt with washer).
