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    I need help

    Hello again Last year I had trouble with a 70 hp 3 cyl mercury outboard. One of the pistons the top one had its rings held in the grooves by what looked to be the raised part of the piston which had gone comepletly to pieces. I rebuilt the motor 3 new pistons,impeller,and new gasket kit. Engine...
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    Could somebody please help me?

    I have a 70 hp mercury,3 cyl. 1986 model. The control box is a Quicksilver. This winter I had the pistons replaced, new gaskets, and also a water pump kit installed. The motor runs but when I tried to use it I found that the gears somehow became reversed. When I put the control in forward the...
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    70 hp Mercury

    Hello I had the pistons replaced in my outboard. Everything seems to be fine except my gears are reversed. This means my motor is locked down in forward gear and unlocked in reverse. This is a 1986 3 cylinder 70 hp motor. Could someone tell me how to change the gears back, or change the control...
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    Piston problem

    Hello I have a 2 carb 70 HP Mercury. Some of the metal on top of my upper piston left the piston and went between the skirt and cylinder wall. This jammed the rings and caused no compression on that cylinder. I replaced all three pistons. This was expensive I do not want the problem to recur...
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    70 HP Mercury Pistons

    Hi I ordered new pistons for a 1983 70 HP outboard. The pistons seem to be the same except my old ones had 3 rings and those new ones have only 2. My question is does this make a difference. Thanks Stan
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    First Time

    Hello I am new to forums, please look over any mistakes. I have a 1983 model 70 hp Mercury outboard. 3 cylinder.The top piston has the rings seized in the grooves. It looks like the piston skirt rubbed enough of itself on the cylinder wall to jam the rings. I do not think the motor ran hot. The...
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