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    Mercruiser 5.7 alternator replacement

    I have a 1990 Sea Ray with a 5.7 L, raw water cooled engine, serial number OC759123. I need some help figuring out what alternator I need to purchase. I haven't removed the old alternator yet. Will the old alternator have a number on it that I can reference online for a replacement or is...
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    Mercruiser Alpha 1 OEM prop selection

    New boat to me. It has a Mercruiser 5.7L Alpha 1 Gen 1 Engine serial number OC759123. The 3 blade prop on the outdrive now is number QA1918X21P. This prop looks small for the outdrive so I'm looking to verify if it is the correct OEM prop and purchase a spare prop. Any help would be appreciated.
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    Power steering problem diagnosis

    I have a 1990 Sea Ray 5.7 L with an Alpha One sterndrive. This boat is new to me. I have no history on it. Engine serial number OC759123 and transom serial number OC895445. The power steering reservoir is full. No unusual noises. The problem I have is stiff and choppy steering. It's also...
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    Mercruiser 5.7 overheating, raw water cooled Alpha 1 Gen 1 sterndrive

    Hello, I'm new here and have never posted on a forum. I need some ideas and really hope somebody can help. I just bought a 1990 Sea Ray, raw water cooled, Alpha 1 Gen sterndrive, carburetor, and in very nice shape but it does run hot. The engine was replaced in 2010 with a Mercruiser...
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