I own a 1991 cruiser with 5.7 Mercruiser and V drives. This past weekend I was camping on a sand island. Shortly after pulling myself off the island my starboard engine overheated. I assume I sucked some sand into the impeller of the seawater pump. What parts and tools do I need to make the repair myself? My raw water system runs through seacocks in the hull, then through a strainer, through the V drive and then to the engine.