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    4.3L Mercruiser won't shut off

    I have a 2007 4.3L Mercruiser. The engine starts fine and runs great, even under load but when I turn off the ignition key, nothing happens. The engine continues to run without missing a beat. It's not dieseling, it just keeps running. I changed out the ignition switch but it still won't shut...
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    2007 4.3L Mercruiser rusted through block

    I have a 2007 4.3L Mercruiser that had water intrusion due to the block rusting through from the cooling chamber to the oil chamber. The motor has never seen salt water, only fresh water lakes and it has less than 200 total hours on it. Each winter, I drain the water out of the motor through 5...
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