Gas leak

[NCMau]

Can JB Weld be successfully used to fix a small leak in a gas tank, or is there beside welding, a better product available?

 

[SPIKER]

There are some two part putties that are better, autoparts stores have them. There is a other product that is similar to silicone but drys hard. I forget the name of it but it is in a red & yellow tube in the epoxy area & states gas tanks on it.

Mark

 

[SCWOOD]

There are some two part putties that are better, autoparts stores have them. There is a other product that is similar to silicone but drys hard. I forget the name of it but it is in a red & yellow tube in the epoxy area & states gas tanks on it.

Mark

SealAll fixed a plastic gas tank on a generator with it!

 

[franklin2]

Seal-All is good stuff. A plastic tank is tough to fix though. A lot of puttys and sealers don't like to stick to it. Sometimes a soldering iron will melt a crack back together.

 

[SCWOOD]

Seal-All is good stuff. A plastic tank is tough to fix though. A lot of puttys and sealers don't like to stick to it. Sometimes a soldering iron will melt a crack back together.

The rubber piece were the cut off goes into the tank was cracked, not the tank! I fixed it for my uncle, he didn't want to spend $25.00 on a piece of rubber & plastic cut off!

 

[skyhook]

Can JB Weld be successfully used to fix a small leak in a gas tank, or is there beside welding, a better product available?

Yes it can, there are different types of JB weld also.

 

[NCMau]

Thank you all for the inputs. I'm more educated now!

 

[muddstopper]

Plastic tank or metal? I poked a piece of 1/2in rebar thru my tn75 fuel tank once. I had already replaced the tank before and I didnt like the thoughts of buying yet another. I went to the scrap yard and cut off a piece from a plastic car gas tank. I then took a large soldiering iron and started just heating around the hole until it turned shiny and sticky. I then would push the piece of plastic into the hole with the hot soldering iron. I was able to compeletly seal up the hole. I used the iron just like a acet torch and the extra piece of plastic was my filler rod. It was slow go, but the tank never leaked. Lots of videos on youtube showing plastic welding.

 

[Jesse masterson]

Id be afraid the gas or fumes would ignite in the tank, a soldering iron and gas fumes don't coincide, not saying it wouldn't work but I wouldn't want to do it, I'd get some jB weld waterweld, it's impervious to gas or diesel and works pretty good, bound to be safer than anything with heat!

 

[franklin2]

..........

 

[Jesse masterson]

I've heard of clean tanks blowing! Air pocket of fumes, one guy on here blowed his fingers off!

 

[ericher69]

I've heard of clean tanks blowing! Air pocket of fumes, one guy on here blowed his fingers off!

Need to leave the cap off.

An even better way is keeping a steady flow of high volume low pressure air through it to blow away any "pockets" of fumes.

Sent from my iPhone 5s 64Gb using TractorByNet

 

[franklin2]

FILL IT UP COMPLETELY with soapy water. I have soldered Gravely tanks many times using that method. We are talking just a small tank you can pick up and inspect, not a large automotive tank. Fill it up and then shake it around, dump it out and let it dry out. If you pick it up and stick your nose in there and it doesn't smell like gas, you will be good to go.

 

[ruffdog]

My 10.5 hp Briggs on the wood splitter was a target of some varmint and got chewed on. The fuel tank had a dime sized hole in it. I tried my best with fuel safe epoxy and it lasted about 2 years. I then removed the tank, washed it out with soap, and welded it up with a soldering gun. I used strips cut from oil jugs as my filler rod. It worked great and has held up for about 4 years. A new tank would have been about $80.

 

[Bird]

I used JB Weld many years ago to fix a leaking crack in the plastic fuel (diesel) tank on my B7100, only because the dealer did not have a new tank in stock and I didn't want to wait. It lasted a year before it started to leak again.:laughing: