Welding on Fuel Tank.

miner09 · Jun 22, 2015

I have a aluminum fuel tank that has a crack on edge and I need to have it welded. Local welder don't know if he wants to weld it. Has no fuel in it for a short time. I've had them welded before. Anyone have any tips before we start on it?
Thanks

miner09 · Jun 22, 2015

It's a diesel tank.

Jim in rush co · Jun 22, 2015

I had tank on 35 mig welded, they ran exhaust from an engine in it while welding, same should work with tig. I was afraid to try mine myself but they said no problem.

Old weldor · Jun 22, 2015

Take it to a professional, they will pressurize it with co2 before welding it. No sense taking a chance.

Steve@Advance · Jun 23, 2015

So long as there is no liquid fuel in it, and the tank is open, shouldn't be a problem.

2tractors · Jun 23, 2015

I've heard of filling with water first, should be plenty of that in your neck of the woods. lol

Tony in Mass. · Jun 23, 2015

One of these days I got to get on your will... Millisa don't want all that grey $4!7....

Can't JB weld do that? However ya do it, it all got to be clean and dry... aluminum welding is like flying a plane.. you aren't allowed any mistakes...

Dieseltech · Jun 23, 2015

I learned how to repair tanks when working for the MF dealer, we just used a small air pressure regulator from the compressor and blow into the empty tank while the torch was used, and after brazing or soldering until the tank was cool. Main thing is keep the air moving, a lean mixture won't go boom. Repaired both gas and diesel tanks, also need to use the same rod as used before, if brazed use brazing rod. If solder then use acid core solder..

Bruce(OR) · Jun 23, 2015

fill with water, displace the fuel odors.

Duggers · Jun 26, 2015

Steve, that reply got me to laughing about the David Letterman show, I think his last show had the Top Ten most famous last words. I sure your idea would work just fine. If anyone could find and post the link to the show it is a good laugh.

Merrit · Jun 26, 2015

I have welded gas tanks. I piped a hose from a running vehicle into the tank to displace the oxygen and vapors. NO problem........

ditchwitch · Jun 29, 2015

fill it with water

Welding on Fuel Tank.

miner09

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miner09

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Jim in rush co

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Old weldor

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Steve@Advance

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2tractors

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Tony in Mass.

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Dieseltech

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Bruce(OR)

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Duggers

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Merrit

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ditchwitch

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