I have acquired an 82 Galaxy with a Mercruiser 120, 2.5l. The engine was rebuilt and in pieces and I am in the process of rebuilding it. The question I have is that the drawings do not show a crankbolt holding the pulley on. I also do not see one in the manual, nor do I see threads on the crank. I am simply in some disbelief here. Is there no crankbolt? Do I just pound on the pulley and that maintains the seal? Any help is appreciated.