PVC works for me......

Discussion in 'Motorized Bicycle General Discussion' started by junked, Jul 25, 2010.

  1. junked

    junked New Member

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    My Kit tank started leaking from one of the studs. I tried Seal All, and it sealed nothing, so I made what you see here. It's weird, but it works.
     

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  2. charles.paskell

    charles.paskell New Member

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    nice... did you name her yet? Id call her overkill but thats just me
     
  3. joabthebugman

    joabthebugman New Member

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    I love it
    I was thinking about something similar except that it would be two separate tanks for extreme trips
     
  4. fm2200

    fm2200 New Member

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    Love the original pvc tank very inventive. Don't throw away your leaky tank, regular silicone from any hardware store will seal it up permanently. Had that problem on a motorcycle tank, the stuff is still holding since 1970. I still ride the bike to this day a 1969 Triumph.
     
  5. junked

    junked New Member

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    I'll give the silicone a try. I have Permatex RTV Blue, do you think that will work?
     
  6. scotto-

    scotto- Custom 4-Stroke Bike Builder

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    I'd go the Ultra Grey, after a good cleaning with MEK or acetone. Is that a galvanized pipe cap for your gas cap?
     
  7. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    LOVE the tank by the way, opens up all kinds of possibilities.
     
  8. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Personally, I would stay away from silicone, JB Weld, and just about anything besides solder or brazing to stop a leak....the additives in modern gas will eventually eat through just about everything, except vinyl ester resin.
     
  9. junked

    junked New Member

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    The cap is brass. I used a 3/4" close nipple (brass) tapped into the PVC elbow. The cap is vented and I made a plastic baffle to prevent leakage. The PVC is 2" SDR21, same material as SCH40 but with a thinner wall.
     
  10. happyvalley

    happyvalley New Member

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    Well done. The PVC idea has me thinking about all kinds of different configurations that would be possible.
     
  11. ferball

    ferball New Member

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    Love the tank, did not eventhink of the dual chamber tank idea I like it.
     
  12. junked

    junked New Member

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    Tanks, lol.
     
  13. Beej

    Beej New Member

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    I like that a lot. As stated it opens up a lot of possibilities. Time to hit the drawing board me thinks.
     
  14. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Fo'sho'!
    . . . . .
     
  15. GearNut

    GearNut Active Member

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    Now I have been taught that gasoline, especially ethanol, will eat away at PVC and PVC glue.

    junked, please keep us informed as to how well this works out for you in the long run.
    The possibilities are endless if it actually works out.
     
  16. junked

    junked New Member

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    So Far so good with no leaks. I found this chart Berghof/America: Chemical Resistance Chart listing chemical resistance of various materials including PVC. I think the PVC Cement, as it is called is of bigger concern than the PVC itself. To join PVC you should first use the "cleaner", witch softens the PVC, and then apply the cement. Once joined you have about 3 seconds for adjustment before the joint is rock solid. As good as that is, I still don't know how well the PVC cement withstands constant exposure to Gasoline.
     
  17. ferball

    ferball New Member

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    My understanding is that regular PVC cement and "cleaner" won't hold up to gasoline, I used "Seal All" to glue my tank together and it worked fine. There are a variety of adhesives that will work fine to glue the pvc together, go to your local auto parts store and you should be able to find something.
     

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