help patching a gas tank ?

Discussion in 'Technical' started by 302-72-mav, Jul 22, 2010.

  1. 302-72-mav

    302-72-mav Member

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    does any one have a way of patching a rust whole in a gas tank

    i used J.B weld and it worked for a lil while :naughty:

    and yes its a 69.5 mav:cry:
     
  2. PaulS

    PaulS Member extrordiare

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    If you want a permanent fix then solder a patch over the leak onto clean bare metal - use a big soldering iron - no open flames. (I use a 2000 watt electric iron)
    You could replace the tank - I think the 65-66 Mustang tank can be made to fit.
     
  3. 71gold

    71gold Frank Cooper Supporting Member

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    install a drain plug...:huh:
     
  4. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    For a permanent solution -take the tank to a radiator shop - most work on tanks too. They can boil it out and braze shut all the little pinholes and seams and then pressure test it. They can then line it with an epoxy sealer, or you can buy a kit from Eastwoods and do it yourself to save a couple bucks. There are cheap kits out there that don't last. Make sure you buy a good one. POR15 makes a kit but I never tried that one. I use the Eastwood one.

    For a final exterior paint, that spray on bumper chrome looks really good on tanks.

    [​IMG]
     
    Last edited: Apr 1, 2011
  5. 302-72-mav

    302-72-mav Member

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    did you have yours fixed ?? howmuch $$$$$$ :huh:

    i have 2 small pin holes and one about the size of a silver dollar all in the front by the sending unit
     
  6. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    The radiator shop cost about $100 to boil out the tank and braze a dozen or so spots. Then the Eastwoods tank sealer was about $50.

    Like most rust, if you see 2 pin holes, you have about 20 more just hiding under the surface.

    :)
     
  7. strokermaverick

    strokermaverick Member

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    I used POR-15 in my gas tank, not the tank kit, just POR-15. I had a rust problem, so I emptied the tank, dropped it, and cleaned it out, the next day after it had dried out. I then wire brushed/wheeled the outside of the tank. Turned out that my tank had 13 pinholes in it. A couple of them were the size of a pencil lead, or larger in diameter, but there was so much rust in it, that it barely leaked at all. I put a couple hand fulls of rocks in the tank and shook it and rolled it, you get the idea. Then I vacuumed it out, and blew it out with an air gun, and repeated a couple of times. After I had gotten it cleaned out to my liking, I simply poured roughly 1/2 quart in the tank and rolled it around, and turned it upside-down, and coated the entire inside of the tank, checking it with a flashlight, and let it sit on its bottom over night to dry. The next day, you could see where the POR-15 ran through the holes, but had already sealed the holes. This stuff dries out like hard rubber. I then proceeded to paint the outside for double insurance. That was about 6-8 months ago and, about 500 miles ago, and no more leaks, and no more trash or rust in the clear glass fuel filter. The POR-15 can states that after it dries, it CAN NOT be removed by any solvent.:thumbs2:
     
  8. 71gold

    71gold Frank Cooper Supporting Member

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    this is true...just get some on you...:yup:
     
  9. Bob Wiken

    Bob Wiken Chronologically Gifted

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    I used the POR15 tank system 2 1/2 years ago. I had many pin holes. It has not leaked yet. I used a pressure soap hose at work with hot water. A piece of chain and a lot of shaking to break out any loose stuff in the tank. then Pressure washed it some more. rinsed it with clear water 2 or 3 times and let it dry. Follow the directions exactly. it's pretty easy, it just takes time and about $80
     
  10. 302-72-mav

    302-72-mav Member

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    i just bought some stuff to plug whole's in gas tanks made by J.B-weld so i will use this untill i get some more $$ to fix it

    :thumbs2: THANK YOU
     

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