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  1. S

    Bell housing crack

    I am taking apart the transom assembly of my new to me old boat. I wanted to replace all bellows and gimbal bearing for a bit of a fresh start. Engine is a 1976 mercruiser 165 I6. Drive is of the same vintage so I believe it is MC-1. I removed the pivot pin and discovered a crack in the pin boss...
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    water pump I6

    Hello, I have a 1976 Mercruiser 165. I have the engine out of the boat and would like to replace the inblock circulation pump while it is easily accessible. Can I go to an auto parts store for this part, or does it need to be marine specific? The engine does use a heat exchanger, so the pump...
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    MC1 questions

    Hello, this is my first post.... my first boat too. I bought an older Sangster hardtop that needs quite a bit of work. I have already gutted it and pulled the leg and engine. Mercruiser 165 I6 with I believe the MC1 outdrive. It needs new floor and stringers and for sure a re wire. According to...
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