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69 Coronet R/T... fuel tank connections/lines? #81803
06/29/08 07:36 PM
06/29/08 07:36 PM
Joined: Jul 2005
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Farmland, IN
Ludington1 Offline OP
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Ludington1  Offline OP
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Can anyone post a picture or even just a description of where the connections go on a 69 Coronet R/T fuel tank? There is one line that starts at the sending unit and goes to the fuel pump... that one is no problem.

There are the other two connections towards the driver-side of the tank. Of those two, the one towards the passenger-side comes out to a short length of 5/16" rubber fuel line, and then about a 10" metal line which goes up to the bottom of the trunk floor, turns, and the open end of the metal line faces back towards the ground. The connection towards the driver-side goes again to a short length of rubber line and then a metal line that goes through a grommet in the trunk floor, acroos the trunk floor (inside the trunk) then back through a grommet and apparently down into maybe the frame rail? Should that longer line be connected to the vapor return line from the vapor separator?

Thanks in advance... I keep getting a strong gasoline smell in the garage and I need to try and get this figured out. The service manual doesn't really address this area very well that I have been able to find. With a full tank and after driving the car, I also am getting a bubbling/gurgling sound from the short length of metal fuel line described above.

Darren

Re: 69 Coronet R/T... fuel tank connections/lines? [Re: Ludington1] #81804
06/29/08 08:54 PM
06/29/08 08:54 PM
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lewtot184 Offline
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on my car there are two 1/4" lines on the driver side of the tank. the one on the left has the vent with a 180 degree turn down. the one on the right goes up thru the trunk. the sending unit has a 3/8" fuel line and a 1/4" return line. i have had fuel slosh out the 180 degree vent with a full tank. the gurgeling is probably the fuel return line relieving pressure after the engine is turned off. hope this helps.

Re: 69 Coronet R/T... fuel tank connections/lines? [Re: lewtot184] #81805
06/29/08 09:53 PM
06/29/08 09:53 PM
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Posts: 3,072
Farmland, IN
Ludington1 Offline OP
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Yes, that's it... are both of the 1/4" outlets just vents? The fumes seem to get so strong in the garage sometimes that my wife definitely doesn't like it, and I'm not too happy about it smelling that strong either... I am pretty sure that it is stronger than a "normal" old car.

Darren

Re: 69 Coronet R/T... fuel tank connections/lines? [Re: Ludington1] #81806
06/30/08 01:02 AM
06/30/08 01:02 AM
Joined: May 2008
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Aurora, Colorado
451Mopar Offline
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Quote:

Yes, that's it... are both of the 1/4" outlets just vents? The fumes seem to get so strong in the garage sometimes that my wife definitely doesn't like it, and I'm not too happy about it smelling that strong either... I am pretty sure that it is stronger than a "normal" old car.

Darren




That's because todays gas vaporizes way easier.
If you fill a jar with todays pump gas and another with race gas, the pump gas will evaporate in about a week, and leave behind a nasty residue. It will take the race gas over a month to evaporate, and there will be almost no residue other than some of the fuels coloring.

I suppose you could add a filter or even some type of valve to the vent lines?

Re: 69 Coronet R/T... fuel tank connections/lines? [Re: 451Mopar] #81807
06/30/08 08:39 AM
06/30/08 08:39 AM
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lewtot184 Offline
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the odor is fuel vaporizing in the carb after the engine is shut off. both my cars do it too. i usually let them sit ouside and cool off, with hood up, before i bring them in the garage.

Re: 69 Coronet R/T... fuel tank connections/lines? [Re: lewtot184] #81808
06/30/08 09:08 AM
06/30/08 09:08 AM
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Posts: 3,072
Farmland, IN
Ludington1 Offline OP
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While I agree with both of you about gas evaporating, I think I disagree that this is causing the strong smell. It is worse than it has been in the past recently, and if the tank is full I will get some gas bubbling out of the short metal vent line. Gas on the garage floor is definitely not what I want in the house-attached garage.

Maybe the idea of a small fuel filter on that vent line is not a bad idea. Anyone else tried that?

Thanks,
Darren







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