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    4.3 over heating at low rpm Help

    Scott timing was set last season to speck
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    4.3 over heating at low rpm Help

    Engine serial number F006554
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    4.3 over heating at low rpm Help

    Have not tested yet with new cir pump its coming Wednesday ---I just bought an IR Thermometer ----Ill go get serial numbers . I have a 4 port thermostate housing meaning 4 hoses coming off it
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    4.3 over heating at low rpm Help

    I have a 1993 4.3xl Mercruiser in a 2050 Chaprell , boat runs great how ever pulling throttle back in no wake zones over heating alarm goes off . Open her up and she cools down ... I replaced 160 deg thermostat last season to a 140 and no difference ... drilled 3 -1/4 inch holes in thermostat...
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    Outdrive specks for serial number OD864087 outdrive

    I blew the upper gears on my outdrive serial number OD864087 need to know specks ? where to find ?? Thank you from an old fart !
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