Plastic gas tank fix

[lewis]

Anyone know what I can use to stop a leak in a plastic gas tank? It s not a huge hole and we didn't notice it til after my bro ahd put $50 worth of gas into it.

 

[jdub]

I've heard rubbing a bar of soap into pin holes and the wax will help temporarily.

Bummer I had a 22 gal tank full of premium when I had to drop it.

 

[bryson]

JB Weld works as long as you have the level of the gas below the leak (it needs to be dry...) Scuff it up a bit before you glue it too.

 

[TJDukit]

I've heard rubbing a bar of soap into pin holes and the wax will help temporarily.

Bummer I had a 22 gal tank full of premium when I had to drop it.

Soap works I can vouch for that, it got me home(150 miles ish) with a hole the size of my pinky but it only last's for a couple day's not by any means a long term fix. After the soap i went to Autozone and got a gas tank plug, it looks like dual colored silly puddy and that worked for at least a year when my parents finally had the tank replaced. Self taught life lesson, never loan your kid your car when they are home on leave for two weeks.

 

[Milner]

The best thing I have found is the two part epoxy resin that comes with a sheet of fiberglass. It is made specificly for fuel tanks. You can even patch over a wet leak. Most places used to have it, but lately I have only found it at NAPA.

 

[Erik d_lux]

I would try the JB weld first. After that maybe it would be worth your time to drill it out bigger and think of something like a rubber plug or a tapered allen head bolt that has a fender washer on each side with rubber seals under it?

 

[poorboyzdreamz]

JB weld water weld would work while its flowing out. My exhuast melted a hole in mine so I drained the tank and used a blown torch and a putty knife and sealed it up good as new. Worked great too it just passed a pressure test for my I/M...

 

[lewis]

How well will the JB weld work with the tank flexing? The tank is dry and not currently leaking. It has a bad scuff on the bottom of it and only leaks when he flexes the vehicle.

 

[Milner]

After trying JB and most the other things suggested, I found the epoxy/glass stuff and it is the only thing that worked long term....

 

[lewis]

After trying JB and most the other things suggested, I found the epoxy/glass stuff and it is the only thing that worked long term....

ok ok I will try it.