Thnx tech thats the best article I have seen so far(been lookin on the net fer a few hours)!!!Its a 86 305 chevy Denny. This prob was found from my other post tryin to turn the engine over to check compression.This is an older v pully attached to the harmonic balancer with 3 bolts could I space the pully with these bolts and some washers,the center bolt is what holds the balancer and the 3 other bolts hold the pully to the balancer?I will torque the balancer to 70 ftlbs and see how bad the alignment is. thnx guys