[Diy_efi] fuel tank fittings

[wdsmith]

I've seen that trick too.
WAY too close.<G>
In fact, I was sitting on it when it went off.
That was around 1963. There was no real damage but I haven't got that 
underwear clean yet.
Actually, just a loud, scary Whoosh! but I didn't like it anyway.
Now I use a car wash on the inside and argon-CO2 MIG mix  for the purging.
I won't say that's the best way, or even a good way, but it is the best 
I've found with what I have available.


Rick McLeod wrote:
> An old-timers trick is to not use 'air' but 'exhaust' from a running engine (must be at operating temp so not running rich), as it is very inert and generally non-combustible. I've seen this done to allow a spark-welder to repair a tank safely.
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