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  1. J

    2007 4.3 L mercruiser overheating

    I am hoping you can help me. My 2007 4.3l carberated engine started to overheat last weekend. I replaced the water pump in the lower unit, the impeller was pristine but I replaced it any way. There is no water getting up to the thermostat. The overheat alarm sounds with a cold engine as soon as...
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