Recent content by Jay Kenerson

Re: Temperature Fluctuation? Appreciate your response!! I purchaces the themostat and gaskets from a marine dealer who services Mercruiser. I didn't ask or notice if it was a Mercuiser part or aftermarket. I did replace the gasket that goes between the thermostat housing and intake manifold...

Hi Everyone, Does anyone have any thoughts on a possible temperature issue I may have. I have a 1999 215 Express Cruiser with a 5.0 Mercruiser, Alpha 1 outdrive, the boat is new to me. Once the engine warms the, temperature gauge fluctuates from 175-200. Once it reaches 200 it slowly drops...