Gas leak

   / Gas leak #1  

NCMau

Gold Member
Joined
Nov 5, 2009
Messages
293
Location
NC
Tractor
MF 202/Ford 8N
Can JB Weld be successfully used to fix a small leak in a gas tank, or is there beside welding, a better product available?
 
   / Gas leak #2  
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
 
   / Gas leak #3  
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!
 
   / Gas leak #4  
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.
 
   / Gas leak #5  
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!
 
   / Gas leak #6  
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.
 
   / Gas leak
  • Thread Starter
#7  
Thank you all for the inputs. I'm more educated now!
 
   / Gas leak #8  
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.
 
   / Gas leak #9  
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!
 
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