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PORT HOPE, ONT

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Gas tank lining
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I have a couple gas tank that have pin holes and was wondering if anyone

had done any relining . Did it work and for how long ?

What product and where is it available? Thanks.  Ed



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COBBLE HILL, BC

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The rumor is...ethanol will dissolve the lining.

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PORT HOPE, ONT

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Well then that would probably defeat the purpose wouldn't it? Ed

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PORTLAND, ONT

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HI ED : Rumour has it that Eastwood has a tank liner kit that works with ethanol . If you go ahead with it , be sure to keep the liquid moving while it sets up , AND , keep blowing the lines out so they don't get coated over . Hope this helps -- LATER -- DON / Fleet 51

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PORT HOPE, ONT

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Thanks Don, I will check on that option . Ed

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ALLAN PARK, ONT ADMINISTRATOR

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If it's just a couple of pin holes, I clean up the spot and solder it with a soldering iron. Of course, when you go to clean the spot, you are likely to open up a few more. I do this with tractor tanks.
I did coat a couple of tanks with some stuff I got at NAPA......forget the name though. It was in a red can. A quart was about $50. I would try the soldering first.

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NIAGARA FALLS, ONT

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I have a 51 Chev car and the gas tank had a pin hole in it. I took it to the local rad shop and they just dimpled the pin hole spot and placed a penny over the cleaned up area and soldered it in . Its been 8 years and still ok. When i worked at a GM dealer several years ago i used to repair gas tank leaks myself with a soldering iron. I was nervous my first couple but it became normal operation after a few. Just no open flames or boom.


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COBBLE HILL, BC

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You can weld or solder a gas tank as long as the cap is off.
I have also heard of sheet metal screws with a piece of rubber under the head to seal them.

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TRENTON, ONT & SOUTH CAROLINA

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I have always used fiberglass kitty hair,never leaked after that.

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MARKHAM, ONT

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jarvis1 wrote:

You can weld or solder a gas tank as long as the cap is off.
I have also heard of sheet metal screws with a piece of rubber under the head to seal them.


 

Don't try this.

Purge the tank first and weld away with no worries.

Pic below of the tank hooked up to the Japanese Fume Extractor. Then testing with open flame.

This was about 20 minutes run time.

Argon will purge  the fumes as well.

 

IMG_8508.jpg

 

 

IMG_8513.jpg

 

 

 

 



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BELLEVILLE, ONT

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Can you not get a new tank? Last time I checked they weren't that expensive?


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ONTARIO

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I like the wheels on your fume extractor Pugsy.

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ONTARIO

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Dry ice will also work and do not use the above exhaust method. I would take Mikes suggestion and get a new tank.

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OAKVILLE, ONT

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Pugs method works well as the exhaust suppresses combustion I have used a similar method piping exhaust in while brazing

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COBBLE HILL, BC

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With the gas cap off, any fumes inside can expand and escape.


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ALLAN PARK, ONT ADMINISTRATOR

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I use Pugs method to put groundhogs to sleep.

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St THOMAS, ONT

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54vicky wrote:

Pugs method works well as the exhaust suppresses combustion I have used a similar method piping exhaust in while brazing


 X2



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ONTARIO

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poncho62 wrote:

I use Pugs method to put groundhogs to sleep.


 X2...skunks, possum, raccoon...



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MARKHAM, ONT

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Smokin Joe wrote:

Dry ice will also work and do not use the above exhaust method. I would take Mikes suggestion and get a new tank.


 

Inert gas removes the fumes. After removal, as you can see from the picture of the soldering torch in the tank, not a fume was left.

So, why not use it?

 

What happens if a new tank doesn't do what you need? I proceeded to cut a big hole with a zip cut and welded

in the plate pictured without issue.

 

IMG_8543.jpg

 

 

 

 

 



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MARKHAM, ONT

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jarvis1 wrote:

With the gas cap off, any fumes inside can expand and escape.


 

Just be sure no one is within ten feet of the opening as there will be a big shot of flames coming out like a jet engine.

After that occurs, fumes will be gone and welding can be done without worry.

Yes, it works.



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MARKHAM, ONT

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54vicky wrote:

Pugs method works well as the exhaust suppresses combustion I have used a similar method piping exhaust in while brazing


 It suppresses by removing the fumes completely. Nothing is left to burn. The checking, cutting of tank, and welding was after running the fumes thru and

everything disconnected. Gas fumes are gone completely.

 

A rag in the opening can work. Set it on fire and stand back. You get a nice show.

Preferable to do this at night. Gas fumes gone completely.

 

I see a lot of comments based on fear. Knowing what and how to do something gets it done safely.

I did some googlin on this topic before starting. That's why I had the soldering torch tied to a broomstick

when I did the test to see if the exhaust removed the gas fumes. I was also standing behind the corner of the garage. no

I'm now confident to do this again with no worries.

 

To OP: if you follow this method to remove the fumes, you could zap pin the holes with a MIG.

However, when a tank has pin holes, it usually has rust divots all around with thin metal just waiting to break through.

If it is only a few, zap the holes, a bit of grinding smooth,and a coat of paint would do it.

 

New tank is the best of course. As mentioned, prices are reasonable for tanks.



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PORT HOPE, ONT

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Thanks guys this has been very interesting. Lots to think about. Ed

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ONTARIO

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Question !! When you over rev your engine does it blowup every time?  What was Forest Gumps favorite saying?



-- Edited by Smokin Joe on Wednesday 17th of June 2020 08:56:36 PM

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MARKHAM, ONT

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Smokin Joe wrote:

Question !! When you over rev your engine does it blowup every time?  What was Forest Gumps favorite saying?



-- Edited by Smokin Joe on Wednesday 17th of June 2020 08:56:36 PM


 

If you're comparing the internal combustion engine to fumes in a gas tank, then, basically yes, engine "blows up" eight times per rev and the flames shoot out the exhaust valves just as they will shoot out the filler neck if welding on the tank without removing the fumes.

And unlike Gump, I do know what I'm gonna get. No explosions when fumes have been expelled using an inert gas.

It's pretty simple and no running around to locate dry ice. Every one of use has a fume extractor parked in the driveway.

 

 

 



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BELLEVILLE, ONT

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123pugsy wrote:

It's pretty simple and no running around to locate dry ice. Every one of use has a fume extractor parked in the driveway.

 

 

 


 I pulled the fuel tank out of my fume extractor to fix it!!! Now what am I going to do?biggrin



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ONTARIO

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Your welding supply shop should have it.

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RICHMOND, ONT

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Lightspeed Mike wrote:

 

 


 I pulled the fuel tank out of my fume extractor to fix it!!! Now what am I going to do?biggrin


 There are some sweet looking fume extractors down the street from me at the local GM dealer.  I think I see one that would fit you perfectly.  You will need to find one of those flexy hose things though.



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ONTARIO

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Marten wrote:
Lightspeed Mike wrote:

 

 


 I pulled the fuel tank out of my fume extractor to fix it!!! Now what am I going to do?biggrin


 There are some sweet looking fume extractors down the street from me at the local GM dealer.  I think I see one that would fit you perfectly.  You will need to find one of those flexy hose things though.


 The bus, but put your bus pants on.



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BARRIE, ONTARIO

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I,ve seen several diesel saddle tanks welded by running an exhaust tube into the tank and braze an elect weld

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MARKHAM, ONT

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I got one don at gas tank exchange in Mississauga, worked fine for 15 years.  The tank had a couple of 1/4 holes in it originally.  Only downside is it looked kinda crappy, flat black with some drips here and there.



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