74' - Fuel Dripping from Charcoal Cannister

[Robert S.]

My 74' (L48) is still on blocks from it's last use in Nov. 09'. Today I was in the garage and noticed a steady drip of fuel onto the floor coming from bottom of the charcoal cannister. Since it was quite hot today in Connecticut and I knew the fuel tank was full, I concluded that it might be getting pressure from the fuel tank through the cannister vent line. I took off the gas cap and in doing so I think I noticed some pressure escaping from the tank. The dripping stopped shortly thereafter. It is a good thing there was no ignition source in the garage today or I would have lost the car and garage.

I have never had this happen in the summer months when the same or worse temperature conditions occur.
Has anyone had this experience? Does this suggest something has gone wrong with my vapor recovery system?

[Paul O.]

Re: 74' - Fuel Dripping from Charcoal Cannister

Robert does the 74 have the same Rochester vent valve mounted on the top left side of the tank as 71 and later years. If so the float ball in the vent valve is stuck. You need to remove the valve and free the ball with a penetrating oil or lubricant. Paul 18046

[Thomas O.]

Re: 74' - Fuel Dripping from Charcoal Cannister

Robert; I have had a similar experience with my 73. Tank had been filled relatively warm 80 degrees f parked car and fuel began to drip from can ister. I guessed a siphon situation at that time. Yes, a bit frightening.