>Don't think I will try, but according to the instructor,
>you can weld tanks which have already had fuel in them,
>by filling them with water.
>
>Cheers,
>-Neil.

The important thing with petrol tanks is to assume that they are full of
petrol vapour indefinately after use. When I was working in casualty I sa=
w
the worst burst ever when someone tried welding an "empty" petrol tank.
Shame it was full of vapour. The heat nicely pressurised the vapour in th=
e
tank before the welding punctured the tank..... One auto flame thrower ri=
ght
where you are.... Not nice :( At least filling with water will stop vapou=
r
flashes though I'd worry about the water getting hot and expanding in a
closed space (the second worst burns I've seen where from steam from a ca=
r
radiator)....  Oh the joys of medicine...... I'd be tempted to fill with
water and take the top of the filler cap of. Not sure how I'd dry out the=

tank afterwards, wouldn't fancy water in the engine....
B

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