Fuel tank leak.
- Doug G
- MMC Member
- Posts: 5096
- Joined: Sun Sep 17, 2006 14:44
- Location: Caribbean
Fuel tank leak.
Metal fuel tank.
There is a leak at one roof the vertical seams.
Would like to remove tank, empty it and have the leaking welded.
BUT while it is easy to empty it can be also VERY dangerous to weld a fuel tank.
What is the recommended procedure to remove the residue fuel from the tank after emptying the liquid volume, in order to weld it safely (without a very loud bang) ?
There is a leak at one roof the vertical seams.
Would like to remove tank, empty it and have the leaking welded.
BUT while it is easy to empty it can be also VERY dangerous to weld a fuel tank.
What is the recommended procedure to remove the residue fuel from the tank after emptying the liquid volume, in order to weld it safely (without a very loud bang) ?
Having a moking good time!
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- Posts: 181
- Joined: Mon Oct 15, 2012 2:38
Re: Fuel tank leak.
Is the leak a hole or more of a crack? I have seen holes just plugged with a screw and sealant. May even find a good epoxy or sealant that will fix a crack if it's not in a load bearing spot.
Live Laugh Moke
- Tim
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- Joined: Tue Oct 24, 2006 0:41
- Location: Hobart, Tasmania, Australia
Re: Fuel tank leak.
Drain it, then drop a match in.
Tim
Tim
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- Tim
- Posts: 2289
- Joined: Tue Oct 24, 2006 0:41
- Location: Hobart, Tasmania, Australia
Re: Fuel tank leak.
Sorry, I didn't read the bit about avoiding a large bang.
Tim
Any sarcastic, ignorant, libellous, unfounded or stupid opinions expressed in or through this message are the opinions of the author and do not reflect the opinions or views of any member of The Mini Moke Club or the opinions or views of any other individual.
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Re: Fuel tank leak.
I recently dropped my tank. Filled it with cold soapy water, drained and welded.
No bangs no problem.
Jez
DBL 785B
No bangs no problem.
Jez
DBL 785B
- Doug G
- MMC Member
- Posts: 5096
- Joined: Sun Sep 17, 2006 14:44
- Location: Caribbean
Re: Fuel tank leak.
Thanks gentlemen. Suggestions appreciated.
Soapy water I presume help dissolve any fuel residue.
Soapy water I presume help dissolve any fuel residue.
Having a moking good time!
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- Joined: Sat Apr 25, 2009 20:00
- Location: Skipton, North Yorkshire
Re: Fuel tank leak.
I have welded fuel tanks with oxy/acetylene by running a hose from another car's exhaust and filling the tank to be welded with carbon monoxide, therefore no oxygen, so no bang!
- Tim
- Posts: 2289
- Joined: Tue Oct 24, 2006 0:41
- Location: Hobart, Tasmania, Australia
Re: Fuel tank leak.
People use MIG shielding gas too.
If it was me I'd take it to an expert, like a radiator repair place, I don't have the right kind of gear to weld a seam on a fuel tank. Then if it went BOOM it would be his problem.
Tim
If it was me I'd take it to an expert, like a radiator repair place, I don't have the right kind of gear to weld a seam on a fuel tank. Then if it went BOOM it would be his problem.
Tim
Any sarcastic, ignorant, libellous, unfounded or stupid opinions expressed in or through this message are the opinions of the author and do not reflect the opinions or views of any member of The Mini Moke Club or the opinions or views of any other individual.
- Doug G
- MMC Member
- Posts: 5096
- Joined: Sun Sep 17, 2006 14:44
- Location: Caribbean
Re: Fuel tank leak.
While I shall take it to a professional (somebody that does it for money) I am not sure how 'expert' they will be.
Yes the 'BOOM' would be his/her/it/their/them (trying to be politically correct) problem, although I would like to make the tank content as inert (read non-explosive) as possible.
Having a moking good time!
- Doug G
- MMC Member
- Posts: 5096
- Joined: Sun Sep 17, 2006 14:44
- Location: Caribbean
Re: Fuel tank leak.
Okay.
Tank removed.
Washed out with water and washing up liquid.
Allowed to stand overnight filled with more water and washing up liquid.
Emptied and rinsed out with fresh water.
The tiniest of tiny pinhole leak was discovered on underside.
Taken to my main mechanic, and tank filled with carbon monoxide fumes for 15 minutes.
Duly ground back to a clean metal area, then brazed.
Now to have my mechanic (my son)reinstall the tank.
We will see how long this repair lasts.
Tank removed.
Washed out with water and washing up liquid.
Allowed to stand overnight filled with more water and washing up liquid.
Emptied and rinsed out with fresh water.
The tiniest of tiny pinhole leak was discovered on underside.
Taken to my main mechanic, and tank filled with carbon monoxide fumes for 15 minutes.
Duly ground back to a clean metal area, then brazed.
Now to have my mechanic (my son)reinstall the tank.
We will see how long this repair lasts.
Having a moking good time!
- Tim
- Posts: 2289
- Joined: Tue Oct 24, 2006 0:41
- Location: Hobart, Tasmania, Australia
Re: Fuel tank leak.
It should be fine.
I once discovered a leak in the very bottom of a tank as I was about to go on a long trip. I drained it and cleaned the outside of the tank thoroughly with solvent, then pressed some kneadable epoxy putty into the area, thinking that it should last the trip. It actually lasted the life of the Moke.
Tim
I once discovered a leak in the very bottom of a tank as I was about to go on a long trip. I drained it and cleaned the outside of the tank thoroughly with solvent, then pressed some kneadable epoxy putty into the area, thinking that it should last the trip. It actually lasted the life of the Moke.
Tim
Any sarcastic, ignorant, libellous, unfounded or stupid opinions expressed in or through this message are the opinions of the author and do not reflect the opinions or views of any member of The Mini Moke Club or the opinions or views of any other individual.
- Doug G
- MMC Member
- Posts: 5096
- Joined: Sun Sep 17, 2006 14:44
- Location: Caribbean
- Doug G
- MMC Member
- Posts: 5096
- Joined: Sun Sep 17, 2006 14:44
- Location: Caribbean
Re: Fuel tank leak.
My son has decided to paint eternally with 'underseal'.
Having a moking good time!
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- Joined: Thu Aug 19, 2021 14:49
Re: Fuel tank leak.
When I had the 'Tina" there were pin holes in the top of the tank and getting a replacement tank was prohibitive price wise.
I used the POR system to clean degrease and line the tank with a resin coating.
The holes were filled with Petrol Patch Fuel Tank Putty.
And then painted with POR exterior paint. Its resin based that goes rock hard once exposed to air. The tank came out shiny and is still going some 10 years later..
When it comes to painting whats the recommended as my tank is just shiny metal.?
I used the POR system to clean degrease and line the tank with a resin coating.
The holes were filled with Petrol Patch Fuel Tank Putty.
And then painted with POR exterior paint. Its resin based that goes rock hard once exposed to air. The tank came out shiny and is still going some 10 years later..
When it comes to painting whats the recommended as my tank is just shiny metal.?