IM getting a grinding/whinning noise from the pulley on the tensioner assembly....THe whole assembly is 60.00 and the pulley is just 15.00...so i bought the pulley;and was wondering if is even possible to get this pulley bolt off...i pulled up as hard as i can to relive belt tension and then to break the bolt loose but i guess either it aint gonna happen or i need to work out?