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    Prop questions

    Hi, Im replacing a bad prop and wondered if one of you may be able to give me some advice. I have a Thompson boat 21 foot with the mercruiser v6 4.3 . At top speed i was getting about 35 Mph, with a 14 1/2, 17 pitch prop. Im wating to get a little more mid range and top speed, better fuel Mpg...
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    Cant get boat upto speed?

    Hey everyone im hoping someone can guide me in the right direction, I have my first boat it has the merccruiser v6 4.3 . I can not get this boat up top speed im topping out at about 8mph and the rpm's are reading about 5 g's at 8mph. It feels like something pulling it back so to speak? and i...
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    1989 merc crusier v6 4.3 i/O.. help

    Hi i'm new here and, Very new to boats. I am having trouble with a the starter , i think? When i go to start the engine it starts to crank for a second the it sounds like it slips out and make a whinding sound and does not crank the engine, Kind of like a saw type sound. Im guessing it's the...
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