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    Johnson 70HP 1979 Charging Voltage

    My Charging voltage is 15.9 volts running at idle.<br /><br />using a Fluke 77 multimeter I have 2 of them both read that same.....<br /><br />Any ideas thank you.
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    70HP Johnson 1979 Power Loss..

    Now that i've spent many hours on the motor lower end problems.<br /><br />I find that I have a loss of power, and the idle is jerky...<br /><br />Compression check shows <br />120,122,118<br />all sparks good<br />new plugs.<br />good gas with 50-1 mix.<br /><br />Motor did sit for 3 years...
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    HELP ! drilling out broken tap in lower gearcase

    I broke a Tap in my gearcase at the Water pump screw holes I was trying to clean out the holes<br />because of corrosion. Help..... the tap is a 1/4-20 I broke off about 1/4 ins of it....<br />the gearcase is aluminum it's a Johnson 1979 70HP....<br /><br />TNX
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    Hydromechanical shift

    I have a Hydro Now as I change my lower unit.<br />I had a 1979 70 HP Johnson this one broke. I changed to a 1973 70HP Johnson. This unit sat in a garage for 2 years with very little lube now the unit is hard to shift. Any helps on this Please. Do you think I can work out the stiffness by...
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    Hydromechanical shifting mechanism

    I need to know if I can convert a Hydromechanical shifting mechanism, to a Mechanical shift mech..<br /><br />I have a Johnson 1979 70 HP, and I got a 1973 Johnson 70 HP Hydromechanical shifting mechanism, not knowing that is was a Hydro Mech<br /><br />Help... thanks. :eek:
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    Johnson 70 HP lower ends 1979

    Will a 1973 lower End fit on to a 1979 motor ?<br /><br />I can get one here in town for $100.00 , but i'm afraid of what the condition of the unit will be in.<br /><br />Is there any way to tell wear and tear easy ??<br /><br />Thank you.
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    Johnson 70HP 1979 Lower End.

    I need help to rebuild my gearcase I hit a underwater object, and the unit will not go into gear..... I also smell gearcase oil...
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