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My '71 240Z is leaking gas from the filler, specifically the actual port. I can fill the tank just fine with no leak to the ground. However, after sitting for a few minutes at home (and I believe even probably while driving) fuel begins to seep between the tank cap collar and the filler neck, sending fuel down the side of the car. Today it was bad enough that a puddle formed. I believe that the cool gas from the pump is heating up and expanding as I drive home. The question is how can this be dealt with? I'm guessing a return line blockage? - The tank was boiled out and cleaned at a radiator shop a few months ago - Rotted hoses from fuel tank to evap tank were replaced - Carbs were cleaned and rebuilt with new valves - Fuel is not leaking from carb bowl overflows - Gas cap is new part from MSA - Fuel pump is warm/hot after car has been running, even with spacer installed The leak has gotten bad enough to bubble and lift pant on the rear quarter panel. Not a huge deal since the car needed new paint even if I decide to restore this one, but it indicates that this is a problem that needs to be fixed. Thanks all!
