I am still trying to figure out why my rear carb on my stock 74 TR6 leaks
gas when the car is not running. After looking thru the E-mail archieves, I
think the problem may be in the emission system. My gas tank builds up
pressure inside, even when the car is not running for days. If I relieve
the pressure, the leak stops. I've already replace the jet with Grose jets,
checked the float, and checked the float height. From what I read, there
should not be any pressure in the tank. Does everyone agree with this? If
this is true, I guess there must be some blockage in the vent line between
the tank and the carbon canister. I see there is a small expansion tank in
this line, above the tank. Does this tank have any valves in it which might
be stuck? Any ideas on where I should look first? As far as I can tell,
all the emission parts are intact and attached properly. Thanks for any
help.
Jay
74TR6
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