drip drip drip gas leak when tank is 3/4s or higher..... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-21-2005, 10:13 AM   #11
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Guys, not to bust anyone'* chops here, but gas tanks are welded all the time. I'll be damned if I'd pay $100 (which seems cheap for a tank to me) when a few stitches with a stick welder will fix it permanently.

Did everyone notice I said to fill the tank with water and drain it first?
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Old 10-22-2005, 01:24 PM   #12
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Just had a leak on my Supra last month when you filled it past 3/4.
Took the right rear fender liner out and jacked the car so the gas all went to that side,
and there it was, a leak just above the seam.
Sanded all the rust really good down to bare metal and applied Fiberglass resin Jelly
being careful to add a little less than specified hardener to keep it more plyable.
Worked out real well.
The japanese only use a primer then black coating on their tanks.
Not half as good as the GM tank.
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Old 10-22-2005, 01:35 PM   #13
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Default Re: drip drip drip gas leak when tank is 3/4s or higher.....

Quote:
Originally Posted by 19bonnie95
I have an gas leak comming from the upper gas tank somewhere it has an drip drip drip leak that I dont know where its comming from on the tank mabey? the leak is under the car on the right side its by a few lines i belive dunno if there gas lines but it cant be a gas line cause it only leaks when i fill it 3/4'* or higher neone else have a gas tank problem like this?
The main problem is exactly WHERE is this leak coming from. If you can find it and patch it with some epoxy that'* fine. But if you're going thru all the trouble of physically removing the tank to try and locate the leak(assuming it is not the gas line), then it would be in your better interests just to replace the tank. And if you decide to replace the tank, you might as well buy a new fuel pump at the same time since the tank is out.
Another option is not to fill the tank past 3/4. But that'* the Cheap Bastard in me talking. Life'* too short. Don't make it any shorter.
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Old 10-22-2005, 02:37 PM   #14
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I agree with BillBoost, if you're looking for a cheap fix, just go buy some epoxy.

I have heard from many "all you have to do is" purge the tank with argon after you wash it out with water, and you can weld on it. No thanks, I like my arms the way they are, with no burns, and all of my skin.
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Old 10-24-2005, 03:27 PM   #15
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I second that.
Used to hang at a local short track in town and my experienced welder friends dad was approached to be the official track welder during wrecks.
He said no way no how. He didn't want to have anything to do with gas and welding in the same vicinity. Its not worth it.
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