Quote Originally Posted by Ray Khan View Post
My fans got loud about a month before my crank pulley failed.
It shouldn't be related as the part of the crank pulley that bolts firmly to the crank snout is the accessory drive and SC drive fits inside of that with the rubber isolator. So if the failing rubber bothered anything it should be the SC but even then it's doubtful.

When the pulley comes apart it probably takes all or most of both belts with it I would imagine.