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    1973, 18 HP, Overhaul....

    Hi folks.... my first time deep inside an outboard. I have 73 model 18 hp evinrude model 18304A. I have one of those generic service manuals but its not real clear, on some things, to a rookie like me. <br />1) does the high side of the piston go against or opposite the exhaust ports ? <br...
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    Main Bearing Dowels

    I'm working on a 1973 18 hp, 1st one I've worked on down to the crank. What part does the main bearing dowels play? Does the crank bearing but against them as a guide or stop, or does it sit on top of them? (on top of being my first, i got this motor in buckets so i didn't get to watch it...
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    Part Number - Crankshaft

    Can anyone tell me the Crankshaft Part Number for these 18 Hp Evinrude Model #'s <br />18302E (1963 i believe) <br />18403D (1964 i believe) <br />18304A (1973 part # 0315286) <br /><br />I have located two good 1960's crankshafts and am wondering if they're the same as the 1973. <br /><br...
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    Merc 7.5 -- Impeller

    In general ,,, which direction does the drive shaft turn on these small Merc engines ? I think clockwise...... <br /><br />More specific, which direction should the fins of the impeller be bent inside the impeller cup / pump housing ? should end of the fins be pointing clockwise...
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    fuel/oil mixture -- motor age

    I just bought a 4 horse johnson and have no book on it. Based on a picture I saw, I believe it is about a 1968 model. What is the fuel/oil mixture and how can I convert the model / serial number to the year of production? <br /><br />I also have a 7 1/2 horse Murcury (mid 70s model) and have...
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