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    1977 Evinrude 85 - Leak at Trim Cylinder Sending Unit

    I plan to use a plug similar to the attached picture. Just need to figure out the right size/thread pitch. If anyone knows the size, that would be great. If not, I plan to just remove the sending unit and bring the plastic spacer with me to get a correct plug. Just would take longer this way as...
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    1977 Evinrude 85 - Leak at Trim Cylinder Sending Unit

    Have a 1977 Evinrude 85hp with the Tilt and Trim cylinders on the outside of the engine mounts. The trim cylinder is leaking where the sending unit bolts to the middle of the cylinder. Don't care about keeping the gauge working, just about fixing the leak. The attached breakdown (part 37) is...
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    1977 Evinrude 85hp - Oil Leaking from Air Silencer Cover

    Would it be wise to check the cover for flatness/sand it down the same way you would a head (figure 8 pattern on a flat surface with sandpaper). Will definitely try the Permatex next time I'm there. Do you happen to know the proper torque for these 3x bolts?
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    1977 Evinrude 85hp - Oil Leaking from Air Silencer Cover

    Thanks, I'll check for cracks next time I'm there, but from what I can tell, the gas/oil was leaking out between the air silencer box and cover as you could see the oil dripping from the seam between the two.
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    How much water?

    Then got deeper tank after replacing head gasket and filled water past here (see picture). A few air bubbles bubbles came out to started pumping water. Definitely listen when everyone tells you you need to get the pump primed by having water above the level of the impeller to get the system...
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    How much water?

    I rebuilt a johnson 25r73a a few years ago. I had this same issue as you were having. I had to use a deeper tank to test it as muffs didn't fit anywhere on this engine. Originally had water in tank to this hole (see picture). Burned up head gasket while chasing my tail adjusting low speed...
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    1977 Evinrude 85hp - Oil Leaking from Air Silencer Cover

    Gas/oil could have leaked into the air silincer box prior to taking the cover off for the first time. What I was staying is that it has never leaked out of the air silencer cover before. Now that I have replaced all the fuel lines and rebuilt the carbs and fuel pump (fixing the original cause...
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    1977 Evinrude 85hp - Oil Leaking from Air Silencer Cover

    Yes we are using pre-mixed at 50:1. Oil is coming from the small hose connecting the nipple on the lower crankcase to the lower corner of the air silencer case. Last time I took the boat out, I removed the air silencer cover when I got back to the dock to see where the oil is entering. No...
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    1977 Evinrude 85hp - Oil Leaking from Air Silencer Cover

    My dad has a 1977 Evinrude 85hp that he had since new. Not much has been done to the engine besides replacing impellers a few times and some lower unit seals. He had some issues last summer with leaking fuel. I helped him replaced all of the fuel lines, rebuild the carburetors using OMC kits...
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    '73 Johnson 25hp Powerhead Gasket Kit - Nylon Washer?

    I recently inherited my grandpas 1973 Johnson 25hp outboard (25R73A). Issues I was having similar to bad upper crank seal. Upper seal was good but had a leak where the lower crankcase half seals to the block. I have the anaerobic sealer to repair this. I have bought the powerhead gasket kit and...
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