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    Engine failed to start after serpentine belt came off.

    Thanks for this. I’m going down to the boat later this week - I’ll check the serial number then. I’ve bought a new thermostat and will be replacing that when I’m there. I was told the impeller was replaced last December, But I plan to check that as well. Great suggestion about the clear hose...
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    Engine failed to start after serpentine belt came off.

    Yes, I’m aware of that now. But some advice on the things to check to help get the temperature to the correct working level would be helpful?
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    Engine failed to start after serpentine belt came off.

    Hi, I have a mercruiser 350 mag MPI and I have just managed to replace the water circulation pump, after the old one failed spectacularly when the bearing failed. I re-fitted the serpentine belt, but have never done this before (nor the water pump) so wasn’t sure if it was tight enough...
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    Measuring RPM

    Hi, I'm in the process of setting up my newly rebuilt mercarb carburettor on my 4.3l mercruiser, and I have just bought a Tachometer to accurately measure the RPM. It's one of those that you simply wrap the wire round the spark plug lead and it picks up the signal and converts it to RPM on the...
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