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Thread: Plastic Fuel Tank Repair

  1. #21
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    JonB_in_Glencoe's Avatar
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    Quote Originally Posted by metricmonkeywrench View Post
    SNIP>>>

    Has anyone come up with some sort of fuel resistant flexible patch for these type tanks? Of course being a bunch of years old the tank is no longer available from the OEM or aftermarket.
    Super glue and baking soda. No Joke.

    I have a Stihl chain saw that had a crack in fuel tank. I tried all kinds of things and nothing worked permanently with the high revving vibrations and fuel proof. 2 years ago, I did the Super Glue and baking soda on the crack...still leak free.


    https://www.youtube.com/watch?v=QFrfRxnpdBQ
    ~~~~~~~~~~~~~~
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  2. #22
    Boolit Mold Cabinfever35's Avatar
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    A+ what JonB said I fixed a fuel tank on an generator no leaks it works.

  3. #23
    Boolit Master

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    A few years ago, my neighbor had a leaking plastic overflow tank on his John Deere tractor. Needed it fixed fast as his crop harvest was at stake. I took a 4" floppy disk grinder to clean up the leaky area down to bare plastic. Then really roughed up the area with a coarse rasp. Covered the area with a generous coat of JB Weld. Thought it would be a temporary fix, but 2 years later it's still holding up. He said a replacement tank would have cost a couple hundred $$$.

  4. #24
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    Quote Originally Posted by JonB_in_Glencoe View Post
    Super glue and baking soda. No Joke.

    I have a Stihl chain saw that had a crack in fuel tank. I tried all kinds of things and nothing worked permanently with the high revving vibrations and fuel proof. 2 years ago, I did the Super Glue and baking soda on the crack...still leak free.


    https://www.youtube.com/watch?v=QFrfRxnpdBQ
    That is simply amazing Jon.

  5. #25
    Boolit Master Shopdog's Avatar
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    OK,gonna try the super glue/baking soda method on wifeypoo's Subaru,Linda Blair edition,windshield washer reservoir. $60 for a new one,but worth trying a fix first. Thanks for the headsup.

  6. #26
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    Quote Originally Posted by JonB_in_Glencoe View Post
    Super glue and baking soda. No Joke.

    I have a Stihl chain saw that had a crack in fuel tank. I tried all kinds of things and nothing worked permanently with the high revving vibrations and fuel proof. 2 years ago, I did the Super Glue and baking soda on the crack...still leak free.


    https://www.youtube.com/watch?v=QFrfRxnpdBQ
    old dog got a new trick today! thanks!

  7. #27
    Boolit Buddy


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    I've used West Systems G/Flex epoxy on RV waste tanks, works well.

    https://www.amazon.com/gp/product/B0...TF8&th=1&psc=1

  8. #28
    Boolit Grand Master
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    Quote Originally Posted by JonB_in_Glencoe View Post
    Super glue and baking soda. No Joke.

    I have a Stihl chain saw that had a crack in fuel tank. I tried all kinds of things and nothing worked permanently with the high revving vibrations and fuel proof. 2 years ago, I did the Super Glue and baking soda on the crack...still leak free.


    https://www.youtube.com/watch?v=QFrfRxnpdBQ
    Amazing!!

    Thanks for sharing that.
    Don Verna


  9. #29
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    MaryB's Avatar
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    Quote Originally Posted by JonB_in_Glencoe View Post
    Super glue and baking soda. No Joke.

    I have a Stihl chain saw that had a crack in fuel tank. I tried all kinds of things and nothing worked permanently with the high revving vibrations and fuel proof. 2 years ago, I did the Super Glue and baking soda on the crack...still leak free.


    https://www.youtube.com/watch?v=QFrfRxnpdBQ
    The old model airplane gap fill technique!

  10. #30
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    Scuff up the area, pile baking soda on it (make a dam with tape if you have to) pour generous amounts of super glue on the baking soda. The result is better than the plastic it replaces.

    Edit, I see it has already been mentioned. Good stuff baking soda and super glue.
    ”We know they are lying, they know they are lying, they know we know they are lying, we know they know we know they are lying, yet they are still lying.” –Aleksandr Isayevich Solzhenitsyn

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  11. #31
    Boolit Buddy
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    Amazon and HF sells plastic welders starting at around $26 or so. They look like soldering irons and some come with screen mesh to melt into the plastic along with plastic rods. One reviewer said that he repaired his plastic gas container with it.

  12. #32
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    fecmech's Avatar
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    I would also recommend ProSeal but that super glue baking soda sounds pretty neat.
    "Masculine republics give way to feminine democracies, and feminine democracies give way to tyrannies.” Aristotle

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check