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    1957 fd-11 johnson lower keeps leaking from center screw hole

    I tried gasket sealer on the screw treads and a good amount on the under side of the crew head. Let it sit over night and when I did a pressure test, it was leaking from the middle screw.
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    1957 fd-11 johnson lower keeps leaking from center screw hole

    I have a 1957 fd-11 johnson lower keeps leaking from center screw hole. It looks as if the screw hole area isn't flat and I can't get anything small enough in there to try and flatten it. Has anyone ever used an o ring around the screw?
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    1957 fd-11 johnson lower keeps leaking

    I will, thanks for all the help!
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    1957 fd-11 johnson lower keeps leaking

    What is your easy fix?
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    1957 fd-11 johnson lower keeps leaking

    It's leaking feom the center screw hole.
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    1957 fd-11 johnson lower keeps leaking

  7. S

    1957 fd-11 johnson lower keeps leaking

    I have a 1957 fd-11 18hp Johnson that my son and I are working on. We rebuilt the lower and everytime we put the skeg back on and fill it with oil it leaks out of one of the middle screws. I've drained the oil and took the skeg off and resealed it with more seal compound and get the same...
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    1957 fd-11 johnson skeg part number?

    Honestly, there's two weld marks on the one side. I was just thinking of replacing it so there were no imperfections on it. I didn't realize the two were a set.
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    1957 fd-11 johnson skeg part number?

    I never dreamed they were made that way. Hopefully this one will work since I can't get a replacement.
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    1957 fd-11 johnson skeg part number?

    No big deal, I appreciate you trying to help.
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    1957 fd-11 johnson skeg part number?

    I saw that earlier. If you click on it, it is sold out.
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    1957 fd-11 johnson skeg part number?

    So if the skeg has damage you have to replace the whole assembly? That does seem right.
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    1957 fd-11 johnson skeg part number?

    I have a 1957 FD-11. The parts manual just gives you a number of 377117 for yhe lower assu. Can anyone tell me the part number for just the skeg?
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    1957 18 hp Johnson FD-11 Pinion gear part number help

    After doing some more investigating, the gears look just fine.
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    1957 18 hp Johnson FD-11 Pinion gear part number help

    I have a 1957 18 hp Johnson FD-11 that my son and I are starting to work on. I believe the pinion gear has some wear and wanted to replace it. He's my problem. The parts manual only gives you a part number of 377147. That's for the whole assembly. I was hoping to get the individual part...
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    Oil mix ratio

    I believe I have the same motor and this is on the inside of the cover. It calls for a half pint of oil per gallon.
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