Topic: Gas tank welding

[Sgt Wonderful]

I need my gas tank welded. Anyone have any ideas?

[goon 1492]

Tig? Or maybe braising?
Did you do a search on this in the main forum page, I have read about others welding on them, I even saw one that had a home made guage on the side of the tank and it looked like it was braised, look closely at the tank in the pic and you can see the home made guage.

[johnny_from_bel]

Depends on what you need to be done.

Tig or brazing like said above for heavy work.
repairing pinholes con be done by soldering.

Make shure the tank is clean a free of fuel vapors.

[KB02]

heh. Talk about your Rat Rod!!  

As for the welding, what's the reason for it? Leak? Dent? Tear? Extension?

You're dealing with thin sheet metal, so whatever you becareful as it is easy to burn a hole through it.

[KB02]

Depends on what you need to be done.

Tig or brazing like said above for heavy work.
repairing pinholes con be done by soldering.

Make shure the tank is clean a free of fuel vapors.

You beat me to it...

[73hutch]

Tig? Or maybe braising?
Did you do a search on this in the main forum page, I have read about others welding on them, I even saw one that had a home made guage on the side of the tank and it looked like it was braised, look closely at the tank in the pic and you can see the home made guage.

did you paint that header?

[Tretnine]

if it's leaking I had really good luck with a gas tank coating product from caswell. I know there are horror stories from other tank coats, but this one worked really well for me.

[goon 1492]

Tig? Or maybe braising?
Did you do a search on this in the main forum page, I have read about others welding on them, I even saw one that had a home made guage on the side of the tank and it looked like it was braised, look closely at the tank in the pic and you can see the home made guage.

did you paint that header?

No that's not mine but I would rock it and drive it like I stole it though  , pretty cool rat bike. I another member posted it here a month or so back and I had to have the pic of it, I think the owner called it dirt rocket. I like how the front is raked

[gerhed]

Had my Indian tank welded once--after some guy backed into me.
Welder pumped an inert gas  (not sure which one)  thru the tank as he welded to keep it from exploding--he said.

[Sam Green Racing]

I saw a mate welding a tank once. He had the filler hole over the exhaust of his running car.
It seems that it don't matter how much you wash the tank out, there will always be a small amount of gas residue in the metal of the tank.
This sorta confirms what gerhed was saying.

Sam.

[mrbreeze]

I had a boss back in Wyoming that used to do it. I believe he used CO-2. That dude was a major a$$hole but he was a helluva welder.

[Terry in Australia]

Here's a tank I'm "modifying" for Sean Condon, I'm only brazing in any mods like the race filler, I'm a much better mig welder than I am a stick welder, but brazing is a lot better filler than mig, and a lot easier to grind into shape, if necessary.

This tank hasn't held fuel for a long time, and when I got it I removed the cap and let it sit for a few months (winter) but having said that, I've welded tanks within minutes of removing them from bikes.

All I do is drain the fuel, then I wash the tank out with hot soapy water. I fill the tank up and swoosh it all around, dump it out, and repeat until I'm happy with it, then I get the wife to light a match and hold it over the filler while I stand behind the blast screen with the phone ready, in case I need to call the EMS, or my insurance agent............