I was helping out a member of my club tonight, he has a C&C 35 with a Universal M30 or M40. The crankcase was filling up with saltwater if the seacock was left open either running or shut down. The engine driven raw water pump, a Sherwood, that is so familiar to the Universal owners was leaking raw water back though the housing and into the crankcase. I didn't think this was even possible but there is was. He had just changed the impeller last week and we guess that he disturbed the inner seal. I am not particularly happy about this setup as this is one heck of an Achilles heel. Word of warning to all Universal owners, check your oil a few times after you mess around with the raw water pump. It could save your engine. RT