Ree,
I've had my 74 on the road for a week now and on Thursday I smelled Gas. I
looked in the trunk and fuel was coming out of the sending unit gasket. When I
opened my Cap it went PooooooF ! tons of air came out.
A fellow lister awhile back had mentioned about an orifice that is between the
tank and the carbon canistor. He stated that they get plugged up.
Well Guess What?! I found mine and it was plugged up. I cleaned it and
made sure that the whole line was clear.
Now everything is OK. I don't know about later models but with this pipe
orifice cleaned out , the pressure (or vaccuum) in the tank are no more because
the tank will vent through the carbon canistor and Anti Run On valve.
I found my orfice on the hose that 90's off the carbon canistor which goes to
the tank. It looks like copper.
Hope this helps
Pat
63 Spitfire(vents all over 'cause its lots o' parts)
74 Spitfire(vents now)
68 Chevy C10 (never had a problem)
http://www.dol.net/~starborn/artvango.html
Ree Gurley wrote:
> When opening my fuel filler-cap, I get a major SWOOSH of air going in. Am I
> correct in assuming that this swoosh is NOT desirable (and indicative of
> some blockage in the canisters/lines/restrictors/vapor separator)?
>
> Ree G. in Silver Spring, MD - 78 Spit FM73070U O
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