HI, I'm replacing the water pump in my outboard. <br /><br />I have an OMC service manual, but it's vague on the water pump. <br /><br />The only place around here that could get a water pump kit was NAPA. <br /><br />They can't get the aluminum housing, and mine is a bit crusty. The old water pump is suprisingly intact and supple, but the ends are rather worn. <br />Do I need to replace the aluminum housing? I got a new steel plate, and the seals. Should I grease everything? <br /><br />I didn't see any traces of a gasket either, should there be one? Can I use silicone instead? <br /><br />Where can I get a new gasket for the rectangular exhaust pipe?<br /><br />Your wisdom is appreciated!<br />-Spiker