how do i fix a hole in a petrol tank?

Answer 1

Most car accessory and parts dealers will stock a special repair patch designed especially for petrol tanks,similar to the sort of bandage you can buy for exhausts.Full instructions will be included.Hope that helps

Answer 2

It's not a DIY task as there is no safe way to get rid of all the fuel vapours without specialist equipment.

I assume it is a metal tank which has rusted in a small area (usually around of of the securing straps). If it's rusted in several places, you really must buy a new one. I had a petrol tank repaired once by a specialist company I found in the Yellow Pages - they welded up the hole and covered the repair in a sticky black underseal type paint which ended up blocking the breather hole at the top of the tank and caused problems with the running of the car. It did stop leaking
though! If you can't find anything in the yellow pages, try calling a radiator repair company - they may be able to do it or might know a company that can.

Good luck

Answer 3

I have done this, but it is a dangerous thing to do. First remove the tank from the vehicle. Then flush the tank through with water for an hour or so. Remove all paint from around the hole right down to the bare metal.

Here is the dangerous bit. Use a heavy grade soldering iron and solder a penny over the hole. Use an electric soldering iron not a blowlamp.

Dry out the tank thoroughly, paint the repair with underseal and refit the tank.

A professional repair shop would flush with nitrogen gas rather than water. Good luck,

Answer 4

do not attempt to weld a petrol tank unless you want to end up with your boot laces where the sun doesn't shine, the booster rockets on the space shuttle each produce the equivalent thrust of 55 to 57 Bowing 747s at full throttle, and each of the four engines produces in excess of 175 million newtons of thrust,and at 31/2 miles a second you'll out accelerate these! I've even seen them go when drained out and filled with water due to air pockets having gas in them, BOC make an inert gas for this purpose, you can buy special patches (as stated) a temporary solution is filler gap (upol B) used for body repairs (has fibre glass in it and is fairly impervious to petrol) however as it's not upvc stabilised light/sunlight breaks it down after a while.

Answer 5

an easy way if the hole is small is with a self tapping screw and washer.The tank can be repaired with a patch soldered or welded on but the tank has to be made safe from petrol before any heat is applied.the best option is a new tank because if there is one hole another is not far away

Answer 6

To repair the tank you would need to weld the hole, however, it is very dangerous for an amateur welder. It would depend how the hole was made. If it is an old tank and worn out, DONT try repairing it.
Your best bet would be to replace the tank.

Answer 7

You can't do it properly, so just bite the bullet and get a new one fitted it's far to dangerous to start trying to patch up things like that,if it's and old(ish) car then the tank is probably past its best,well any tank leaking is past it's best ,however just make sure that its not one of the out let pipes that are leaking before you go spending money on a new tank.

Answer 8

try buying a new petrol tank

Answer 9

The best, and only permanent fix, is to replace the tank.

Answer 10

you would have to make a plate and then weld it on over the hole but make sure you empty the tank and have ensured the fumes are gone before attempting ay welding! if you dont fancy that go to a garage or welders yard.