Leaking Gas Tank 95 S320
 

I drilled two holes on the gas tank in the trunk by mistakes when intalling the stereo amplifier without realizing there is gas tank behind it. It was too late when two holes were already drilled. Is there special good sealant product out there that can seal off the holes completely even the gas vapor can not escape.
It will be very costly to have the weld shop weld off the holes. Please let me know if there is good products and where can I buy them.

Thank you

I have not looked for this product in probably 10 years, but I expect that it is still available. The product is found in the area of the auto supply where the sealants such as RTV and gasket sealers are located. It is a dough that you simply press around on the hole in the gas tank. You must first lower the gasoline level below the leak.

I put this on the very bottom of the gas tank on my ranch truck about 10 years ago and it is still holding. A very good product.

Good luck,

I have seen this product and my father once used it to temporarily repair the gas tank on his SUV.

Although, I would strongly advise you to use this product ONLY as a temporary measure and have the tank properly fixed or changed.

In case of a rear end collision you will be in extreme danger of an explosion due to gas leakage through the holes if the sealing product fails. You really don't want to be driving around in a German Pinto or an Sttutgart 70's Silverado.

I repaired a gas tank long time ago on my dad's 72 Ford by brazing a patch onto the holes. (He drilled holes in the trunk for some reason). It was a bit of work removing the tank and drying it out, but the repair was solid.... never had to worry about a leak.

How about a self-tapping screw with an oil/gas resistant rubber washer? Did it on a tank years ago and it still holding.

Tim

Put self taping screws back into the holes and use some sort of liquid gasket material to seal the screw.

To weld a gas tank you would need to pull the tank out and then vent the fumes out of a tank. It would be cheaper to just get another tank from a junk yard.

I see no problem with screws sealing the holes.

Their are a bunch of holes and threaded fitings in the bottom of the tank not to mention a vent.

Now that I think about it on my boats tank the sending unit is screwed down, on top of the tank.

don't know if it will work or not, because I never tried it, but I was once told a safe way to weld repairs on a petrol tank was to fill it with water first

the water might reduce chance of fire/explosion, but i doubt you would ever get it all out.

I did 3 weld repairs of gas tanks. Each time I drained the fluid and dried the inside of the tank. I never felt that there was an explosion hazard after the tank dried.