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Smashed fuel tank - Can it be fixed? (pics)

Discussion in 'The Hokey Ass Message Board' started by Bad Banana, May 7, 2012.

  1. Bad Banana
    Joined: Jun 20, 2008
    Posts: 834

    Bad Banana
    Member

    Bad day

    Low '55 Oldsmobile + not having floor jack centered on rearend + 18" or so raised off the floor = gas tank impact on floor jack.

    I have searched and not found anyone with one for sale that is as rust free as this one. I cannot find any new ones either. Anyone that knows a source, please let me know.

    Here are pics of the carnage. Anyone think it can be fixed? It is kinked pretty hard near the seam. Not sure how I would get inside to push it back out. Any ideas are welcome at this point.
     

    Attached Files:

    Last edited: May 7, 2012
  2. Use compressed air, Or pick up a new 65 mustang gas tank. I've used them several times
     
  3. drptop70ss
    Joined: May 31, 2010
    Posts: 1,228

    drptop70ss
    Member
    from NY

    Anything made of metal can be fixed, I would think a stud weld gun for pulling dents and some hammer work would get that back to usable shape.
     
  4. Bad Banana
    Joined: Jun 20, 2008
    Posts: 834

    Bad Banana
    Member

    I like that idea.
     
  5. docmike
    Joined: Oct 2, 2011
    Posts: 239

    docmike
    Member

  6. badshifter
    Joined: Apr 28, 2006
    Posts: 3,606

    badshifter
    Member

    Make sure you duck when you put the heat of the stud gun to the GAS tank.....
     
  7. johnboy13
    Joined: May 1, 2007
    Posts: 1,070

    johnboy13
    Member

    I've read that there's a way to fix motorcycle tanks by filling them with water and freezing them. The water expands as it freezes and pushes on the dent from the inside. You then thaw the ice, add more water, refreeze, and repeat until the dent is popped out. Don't know if it will work on your tank, don't know if it really works on any tank. I'd be afraid of splitting the seam, but as I see it, if you've gotta buy a new one anyway, it might be worth a shot.
     
  8. i bet the dent would pop out tho!
     
  9. bobscogin
    Joined: Feb 8, 2007
    Posts: 1,792

    bobscogin
    Member


    The dent/crease is now the strongest part of the tank. Trying to blow it out with air will only force the flatter parts of the tank to belly out.

    Bob
     
  10. I'd try filling it up with water and sealing it off. Then give'r a few toots of compressed air and see if she'll pop out. Maybe have someone tap on a few of the creases to help it along at the same time??? just a thought...


    .
     
  11. Torkwrench
    Joined: Jan 28, 2005
    Posts: 2,739

    Torkwrench
    Member

    The guy that used to recore my radiators tried to weld on a customers gas tank once. It blew up. He had burns over 1/2 of his body. The only reason that the burns weren't any worse, was that he jumped in his radiator dunk tank to put the flames on his body out. :eek::eek::eek::eek::eek::eek::eek:

    He ended up having to sell his shop to the hospital to pay his medical bills....His shop was next door to one of the hospital's parking lots.

    By the way, Rock Valley Auto is a VERY good source for gas tanks. Their tanks are EXCELLENT quality and EXTREMELY durable.
     
  12. Drive Em
    Joined: Aug 25, 2006
    Posts: 1,748

    Drive Em
    Member

    I use this method all the time on gas tanks and header tubes, it works.
     
  13. butcher666
    Joined: Feb 28, 2004
    Posts: 21

    butcher666
    Member

    If you are worried about welding on the tank, try running a hose from the exhaust of another running car into the tank for about 2 minutes first. She will weld just fine and no fire!! No oxygen...........just carbon monoxide.
     
  14. redroaddog
    Joined: Apr 1, 2011
    Posts: 383

    redroaddog
    Member

    check a 55 chevy tank looks close to yours might be the same being both are gm
     
  15. manyolcars
    Joined: Mar 30, 2001
    Posts: 9,539

    manyolcars

    I have been cutting gas tanks open, beating out the dents and welding them back together for more than 20 years. butcher 66 has good info. Learn before you cut. Use POR15 gas tank sealer
     
  16. I popped dents out of motorcycle tanks by air. Worked great.
     
  17. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,249

    mgtstumpy
    Member

    My '66 Fairlane tank was like that after it arrived from the US. After I'd purged it of fumes I cut the top off with a plasma, knocked out the damage and filed up the repair. I TIG'd the top back on and resealed the tank after I had it redipped. Never leaked.
     

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