Originally Posted by sseidriver97
When the pulleys get wet the belt can slip off and get caught and break and mind you 50 mph is around 1500-2000 rpm..That belt comes off going say 1800 rpm its gonna break.
I've had the belt come off at highway speeds a hundred times and it'* still in excellent shape. I suppose if it slips off of one of the smooth pulleys, there'* less of a chance of it catching on something.
Regardless, Dan'* right. The crankshaft pulley (harmonic balancer) is attached to the crankshaft. If your engine runs (or even cranks), it should spin. Make sure the other pulleys spin freely and are not seized, reattach the belts, and start it up.