Ok guru's....
I want to fit a baywindow tank to a splitty, but the only one I can find has some tech-screw holes that need attention...
Anyone out there have any idea of how to de-gas the fuel tank in preparation for some minor welding?
Cheers....
rinse it out with water... do it a few times and you'll find it will be ok... if you have access to air pressure hose etc then give it a light blast with some just as a way of purging the tank.
I had mine welded up for a fuel sender. i completely filled the tank with water (wanted to find out how many litres it was also) then partially filled and swished it round... repeated a few times then purged it out with some air. told the welder what i did before i handed it to him and he was happy with what i did.
hth
see.... air and water do mix 😉
1974 1300
1997 MK3 Golf GL
2003 NB Cabrio
2012 Golf VI GTI
2014 Audi A4 Quattro
run exhaust gas through it the old school way! The fuel vapours become inert and no longer flammable.
Rinsing out several times and leaving it out to air has always worked for me.
Cheers guys.... I should mention this tank has been out of the bus for over a year, without a cap on, so I would suspect it may have been vented well, but just wanted to be sure with a thorough clean.....
When I was driving petrol tankers and they needed repairs, the tanks were opened and steam was blown in for some hours and then the compartments sniffed out with a meter.
However just swishing out with water is a very hit and miss affair since fuel is not soluble in water and there are quite a few people around missing sundry parts of their anatomy due to the remaining vapors going bang.
After rinsing the tank thoroughly out, when any cutting or welding is done, simply blowing a steady stream of air into the tank rendering the vapour mixture too lean to ignite will make you day safer.
I use an old vacuum cleaner with the hose plugged in reversed to blow air into the tank for a while before, and then during any welding to be on the safe side.
L8tr
E
Im not a complete idiot, quite a few parts are missing....
