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AR15.COM
7/26/2009 6:02:55 AM EDT
I am going to try to fix a hole in my gas tank with the stuff. I'm going in. Wish me luck.
7/26/2009 6:26:09 AM EDT
[#1]
Weld or braze the hole.  Don't screw around with plastic.
7/26/2009 6:38:27 AM EDT
[#2]
Quoted:
Weld or braze the hole.  Don't screw around with plastic.


+1, but only after following the proper procedures before putting intense heat on a gas tank.

It should go without saying, but after all, this is GD.




ETA: Maybe AeroE just doesn't care for the OP, and I spoiled his plan.
7/26/2009 6:55:53 AM EDT
[#3]
Quoted:
+1, but only after following the proper procedures before putting intense heat on a gas tank.


Yep, it should be completely full of liquid gasoline to exclude the presence of flammable gasoline vapor.



7/26/2009 7:01:52 AM EDT
[#4]
I've seen a few guys weld patches onto gas tanks before, drain the tank and stick a hose down through the filler cap and pump argon into the tank for awhile and get after it. But i'd try JBweld or some sorta shit before that.
7/26/2009 11:20:05 AM EDT
[#5]
You would be better off using one of the tank repair kits they sell at auto parts stores .

Most use a marine grade fiber glass resin and fabric , along with a stick of bees wax
to stop the leak before applying the patch .  At best you're just buying some time
because by the time a tank rust's through , it's ready to let go somewhere else .
7/26/2009 11:21:24 AM EDT
[#6]



Quoted:



Quoted:

Weld or braze the hole.  Don't screw around with plastic.




+1, but only after following the proper procedures before putting intense heat on a gas tank.



It should go without saying, but after all, this is GD.

ETA: Maybe AeroE just doesn't care for the OP, and I spoiled his plan.


darwin will usually take care of that



 
7/26/2009 11:23:15 AM EDT
[#7]
Dibs on guns, ammo, optics, LBE, mags, MRE's



ETA - Can't believe I was the first. Y'all are slow today.




And FWIW epoxy patch until you can get it fixed right (welded/brazed patch)
7/26/2009 4:47:18 PM EDT
[#8]
Quoted:

Quoted:
Quoted:
Weld or braze the hole.  Don't screw around with plastic.


+1, but only after following the proper procedures before putting intense heat on a gas tank.

It should go without saying, but after all, this is GD.




ETA: Maybe AeroE just doesn't care for the OP, and I spoiled his plan.

darwin will usually take care of that
 



I like everyone.  Mostly.

I hate to say it, but a plug of JB applied after the outside of the tank has been cleaned, sanded to bare metal, and wiped free of contaminants may last as long as the car.  Be sure to mix the epoxy thoroughly and give it day or so to cure.  Once it's cured, the epoxy is pretty much inert to gasoline.


7/26/2009 5:00:08 PM EDT
[#9]
Quoted:
I've seen a few guys weld patches onto gas tanks before, drain the tank and stick a hose down through the filler cap and pump argon into the tank for awhile and get after it. But i'd try JBweld or some sorta shit before that.
'

Ditto, I don't think that my welder even drained the tank completely. IIRC, he got it drained down past the hole, then charged the tank with Argon off of his welder, and then welded the hole shut. He said something about gasoline could not ignite since all the O2 had been displaced by the Argon.