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  1. W

    Problems with 4.3 MPI Mercrusier, Help!

    I have a 2002 4.3 MPI Mercrusier. I had it out over the weekend and I noticed a buzzing sound coming from the engine compartment after I shut the engine off. It sounded like a pump running. It was not the bilge pump. The noise would not stop even after I shut the master power off. I had to...
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    auto bilge pump will not shut off

    I have a 2002 Lund that has both an automatic bilge pump and a manuel bilge pump. I had the boat out yesterday and the automatic bilge pump would not shut off even though there was no water in the bottom of the boat and it was pumping nothing out. I had to disconnect the starting battery just...
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    2002 Yamaha 4-stroke 15hp fuel filter

    I have a 2002 Yamaha 15hp 4-stroke that I had out for the first time this year and it ran for about 3 minutes and died. I replaced the fuel filter although it was not the same one. I do not have a marine shop close by so I bought a Fram fuel filter at a local auto parts store. It looks a bit...
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    new prop help, 4.3 Mercruiser

    I recently bought a 2002 1950 Lund Tyee with a 4.3 MPI Mercruiser. The boat was bought in Iowa(lower elevation) and came with a 14 3/4 x 21 Ballistic stainless steel prop. I had the boat out for the first time last week at an elevation of 5000 feet and the boat took about 15 seconds to plane...
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    what is a seacock?

    OK this may be a dumb question but I am an experienced boater who has always owned outboards but I recently purchased a boat with a 2002 4.3MPI Mercruiser. In the manuel it says open the seacock prior to starting but I can not find where it explains what a seacock is or where it is located...
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