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Welding precautions for LPG fitted vehicles


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#1 _dansa_

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Posted 02 August 2015 - 01:55 PM

Hello all,

              Just wondering what steps people have taken to avoid any unwanted explosions/fires etc, whilst welding on a vehicle fitted with LPG?

 

I need to repair a muffler on an AU Falcon on gas. I will shut off the tank valve and run the engine till it dies, but not sure if there is any other hidden dangers.

 

Any help would be great

 

Dan



#2 orangeLJ

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Posted 02 August 2015 - 02:09 PM

Honestly... None

Battery islator (clamps to the battery and absorbs any current spikes, helps save your ecu etc)

And weld away.

Youd be more likely to blow yourself up on a petrol vehicle than LPG.

Even if you were welding the tank itself, it would go boom. They simply pop a crack, have a fire spout and keep pushing out gas to burn.

#3 caterham2

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Posted 02 August 2015 - 07:50 PM

No real issues here. The fire brigade would rather attend a LPG car crash than a petrol powered car................ much less risk of explosion they say, so I reckon you are pretty safe



#4 _ChaosWeaver_

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Posted 02 August 2015 - 08:05 PM

If you are really worried, and would like to be doubly sure, you can get a spray bottle with a little detergent and water, and spray all the connection's to check for leaks which would show as bubbles ....    always better to be safe than sorry.....  :)



#5 rodomo

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Posted 02 August 2015 - 08:16 PM

LPG tank 3mm steel.................most modern petrol cars 2-3mm plastic.



#6 Rockoz

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Posted 02 August 2015 - 09:16 PM

Spent a few years as a firey.

Dealt with both petrol and lpg incidents.

Would prefer petrol anyday.

Petrol is actually predictable and have never seen a petrol car actually explode.

LPG can be tricky because often the little sticker on the number plate has already gone.

Its a bugger when the relief valve goes off.

 

But as to the original question, treat it the same as you would a petrol car.






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