Hi, I have a 1989 thundercraft 170 ls with a mercruiser 3.0 serial # 0C539905. While out on the water yesterday I heard a loud bang. I pulled the engine cover off and found that the v-belt pully had seperated from the harmonic ballancer. I found a small piece of rubber that I think must be part of what holds the pully on the ballancer. Do I need a hole new ballancer assembly or can the pully be reattached? Where is the best place to find parts? Thanks Guys!