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    Leaking power trim cylinder

    I have a power tilt and trim unit with a ram (cylinder) that is leaking. It is the older style Mercury external 2 ram unit on a 1980 70 hp. The leak is at the piston rod and the cylinder retainer. It occurs in both the up or down positions however it is not affecting the position of the motor...
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    Carburetor cleaning procedure.

    I have a 1981 70 HP Mercury 3-cylinder outboard and I need to clean the two carburetors because of poor running since I started using Mercury?s Quickleen fuel additive. I think the additive may have loosened up particles and is affecting the carburetor performance. The motor ran flawlessly up to...
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    Transom Replacement

    I am preparing to replace the transom on a 1980 MFG Piper 1500 outboard. The transom is well rotted and no doubt that it needs replacement. It is an inch and a half thick, however I am not sure if that thickness extends to the outer corners of the transom. I can see the transom from inside...
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    70hp MERC KNOCK OR RATTLE AT HIGH RPM

    1980 70hp mercury 3 cylinder. Starts easy,idles excellent, accelerates strong, smooth operation from idle thru high rpm. Problem: At high rpm above 3/4 throttle, motor has a rattle sound or ping/knock, back throttle to 2/3 range, noise stops. New plugs, fuel pump, water pump within the last...
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