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Thread: Fuel tank leak right tank

  1. #1

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    Fuel tank leak right tank

    Noticed fuel leak just behind filler neck. it's a stock 1976

    pa 18 with 6000hrs and have had no problems with tanks

    can't see the crack,it's under some kind of sealant the

    factory must have put on.

    must I take the tank out or is there some kind of epoxey

    or sealant I can try?

    If I have to take it out who do I send it to in the midwest?

    How's easyest way to take it out?

  2. #2
    mike mcs repair's Avatar
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    Call atlees. They make a replacement neck that rivets on and then has sealer

  3. #3

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    Do you think the neck is welded or spot spot welded and sealent

    to the tank

  4. #4
    mike mcs repair's Avatar
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    Quote Originally Posted by RAC cubs
    Do you think the neck is welded or spot spot welded and sealent

    to the tank
    most original aluminum necks are welded inside tank before halves of tank were welded together.. and that weld cracks, common problem(also now the water will run down neck and into tank there)... then someone put goop to try to seal it up on yours i assume...

    that's why atlees custom made this stainless repair piece/kit....

  5. #5
    mike mcs repair's Avatar
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    Filler Neck Repair Kit
    P/N 3140-60R - $87.50

    http://www.fadodge.com/Piper%20fuel%20system.html

  6. #6
    Steve Pierce's Avatar
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    I thought the original was a steel neck that is soldered into the aluminum tank. People tend to let the fuel nozzle pry against the filler neck and they start leaking. I would clean it and inspect real good and you might be able to simply apply some PRC fuel tank sealant around the neck.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  7. #7
    skywagon8a's Avatar
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    Quote Originally Posted by Steve Pierce
    I thought the original was a steel neck that is soldered into the aluminum tank. People tend to let the fuel nozzle pry against the filler neck and they start leaking. I would clean it and inspect real good and you might be able to simply apply some PRC fuel tank sealant around the neck.
    Solder? into Aluminum? More likely a threaded aluminum boss welded to the tank with a steel filler neck screwed into it.
    N1PA

  8. #8
    mike mcs repair's Avatar
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    Quote Originally Posted by Steve Pierce
    I thought the original was a steel neck that is soldered into the aluminum tank. .........
    could be.... i just remember the cause as it failing inside, then water also running in there...

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