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Thread: fixing a leaky tank?

  1. #1
    Join Date
    Jul 2005
    Location
    az
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    2,001

    fixing a leaky tank?

    not a rusty tank, this tank ive got leaks where the tank hooks to the rubber cushion. maybe it got bumped or rocked real hard and the U channel is leaking behind the spot weld. I can't see the leak, anything I could sweat into the gab between the tank metal and the U shape bracket? jim
    81 185s
    82 185s with 85 200s motor
    82 185s
    and a 72 ct70

  2. #2
    Join Date
    Apr 2014
    Location
    Edmond, KS
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    2,591
    I have no experience with this, but maybe solder?

  3. #3
    BarnBoy is offline Just Too Addicted Arm chair racerJust too addicted
    Join Date
    Jun 2015
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    Oklahoma
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    Maybe silver solder or braze. Or fill with water and TIG from the outside. Thats probably the easiest honestly. Post pics
    1984 HONDA ATC200M - OG, mid-restoration
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  4. #4
    Join Date
    Nov 2019
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    Those cups that hold the rubber grommet are spot welded, I bet the leak is a spot weld that tore. Braze or soder all the way around the cup. That should do it.
    MrC.
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  5. #5
    Join Date
    Apr 2011
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    https://www.skygeek.com/pliobond-25-...398d2d713742e1

    This product is great. The glass jar has a cotton ball applicator. This will seal holes and stop your leaky gas tank. I have an 86 200x tank that leaked around the exact area you described and it worked perfect. You can top coat this stuff as well

  6. #6
    Join Date
    Oct 2002
    Location
    Northeast
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    17,460
    I would try a low melting point solder.

    I have tried brazing cracks in tanks and it seemed like oxy/acetylene just brought out more issues....
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  7. #7
    Join Date
    Feb 2015
    Location
    Cairo NY
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    55
    I have grown to really like soft solder. Sand or wire brush to get bright shiny steel, use acid flux, and a high watt soldering iron. Sometimes the soldering iron doesn't have quite enough heat, so it is "helped" with a propane torch- heat the end of the soldering iron with the torch for a boost of heat. I have closed a 1/4" rust hole with a blob of solder. Using the iron, as opposed to direct flame from a torch seems safer- don't blow yourself up!!

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