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    removing lower unit

    I have 1991 Mercruiser 4.3 with Alpha I Gen II. Do I have to pull the whole outdrive to change my impellar or can I just pull the lower off by itself?
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    Temp gauge not working

    Ok I have a new question. I have a 91' mercruiser 4.3 and I had it out this weekend but temp guage wasnt working. Has new thermostat and sending unit, so where should I start to look?
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    Mercruiser 4.3 timing procedure

    I would like to know what the correct procedure is to set the timing on a 91 Mercruiser 4.3 2bbl mercarb.
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    4.3 timing and popping

    Here goes, I have a 91 4.3 mercruiser. Just replaced pistons and had heads redone. All back together and trying to set timing and carb is popping. I also just found out I need a new coil. Could a bad coil cause the popping and make it difficult to set timing?
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    Removing outdrive and motor

    I have a 91 Mercruiser 4.3 175hp #OD504322 with I believe an Alpha 1 drive. The motor has a bad piston so motor has to come out. Does the outdrive have to come off also?
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