So I'm a bit comfused....
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Senior User
Joined: Mar 2011
Posts: 122
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From: Rush City, MN
So I'm a bit comfused....
I've been having this issue with my truck, on both tanks, that when I fuel up, I have to run the gas pump at the absolute slowest speed. I can't even put the nozzle on the first click, otherwise it'll back up and stop and/or spill fuel down the side of my truck. I assumed that the vent lines were plugged, or that maybe the fill tubes were collapsed, so I dropped the rear tank. I haven't dropped the front tank yet, but what I've seen so far, on the rear tank, has me baffled. The steel pipes, and tubes appear to be free, clear, and un-collapsed. I looked through them, shone light through them, and blew compressed air through them (and the tank itself) but everything seems to be in great shape. I don't know what the issue could be?
Senior User
Joined: Aug 2004
Posts: 463
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From: Arkansas
My '74 has issues like that on both the main and aux tank. I figured it was because of the curvature of the neck not matching up to the curve of the new pump handle. The '76 with the lower down nozzle (like newer cars) has never had a problem like that. This is what convinced me to put a later model bed on my '73.
I figured it was just a design issue.
I figured it was just a design issue.
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It's been that way since they were new. Something you'll have to get used to.
Some guys have tried placing a 2X4 on the ground and driving the rear tire on it to help the situation.
I always had to turn the nozzle at an angle and slowly fill. Once I adapted the later "door" style with it's appropriate filler neck I no longer had any problems and could fill up at full speed.
They both look the same to me except for the little "trap door" on the later style.
Josh
Some guys have tried placing a 2X4 on the ground and driving the rear tire on it to help the situation.
I always had to turn the nozzle at an angle and slowly fill. Once I adapted the later "door" style with it's appropriate filler neck I no longer had any problems and could fill up at full speed.
They both look the same to me except for the little "trap door" on the later style.
Josh
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Senior User
Joined: Mar 2011
Posts: 122
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From: Rush City, MN
It's been that way since they were new. Something you'll have to get used to.
Some guys have tried placing a 2X4 on the ground and driving the rear tire on it to help the situation.
I always had to turn the nozzle at an angle and slowly fill. Once I adapted the later "door" style with it's appropriate filler neck I no longer had any problems and could fill up at full speed.
They both look the same to me except for the little "trap door" on the later style.
Josh
Some guys have tried placing a 2X4 on the ground and driving the rear tire on it to help the situation.
I always had to turn the nozzle at an angle and slowly fill. Once I adapted the later "door" style with it's appropriate filler neck I no longer had any problems and could fill up at full speed.
They both look the same to me except for the little "trap door" on the later style.
Josh
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And it seemed to get progressively worse with the changes in the pump spouts every so often. Couldn't imagine what it's like now.
I heard it's really bad in California, Oregon and other places that require that rubber acordian looking thing on the spout.
Josh
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MSEE
Joined: Apr 2004
Posts: 10,386
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From: Austin, TX
This problem came out of nowhere on my '79 a few years ago. I could fill it up as fast as I wanted, until one day I couldn't put any gas in it at all. Literally none. I dropped the tank and found that both the fill tube as well as the vent tube were free of obstructions, and in great shape. For the life of me, I could not figure out why this was happening.
I went ahead and replaced the fill and vent hoses, and found that this solved the problem about 90% of the time. I then found that securing the two hoses together (some suggest cold-shrink tape) solved the other 10%, eliminating the problem completely. The fill and vent hoses come taped together in two places from the factory; for some reason this is necessary for proper fill-up. The tape does fall off over the years.
To this day I do not understand how this happened, but that's how I fixed it.
I went ahead and replaced the fill and vent hoses, and found that this solved the problem about 90% of the time. I then found that securing the two hoses together (some suggest cold-shrink tape) solved the other 10%, eliminating the problem completely. The fill and vent hoses come taped together in two places from the factory; for some reason this is necessary for proper fill-up. The tape does fall off over the years.
To this day I do not understand how this happened, but that's how I fixed it.
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Senior User
Joined: Mar 2011
Posts: 122
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From: Rush City, MN
This problem came out of nowhere on my '79 a few years ago. I could fill it up as fast as I wanted, until one day I couldn't put any gas in it at all. Literally none. I dropped the tank and found that both the fill tube as well as the vent tube were free of obstructions, and in great shape. For the life of me, I could not figure out why this was happening.
I went ahead and replaced the fill and vent hoses, and found that this solved the problem about 90% of the time. I then found that securing the two hoses together (some suggest cold-shrink tape) solved the other 10%, eliminating the problem completely. The fill and vent hoses come taped together in two places from the factory; for some reason this is necessary for proper fill-up. The tape does fall off over the years.
To this day I do not understand how this happened, but that's how I fixed it.
I went ahead and replaced the fill and vent hoses, and found that this solved the problem about 90% of the time. I then found that securing the two hoses together (some suggest cold-shrink tape) solved the other 10%, eliminating the problem completely. The fill and vent hoses come taped together in two places from the factory; for some reason this is necessary for proper fill-up. The tape does fall off over the years.
To this day I do not understand how this happened, but that's how I fixed it.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Some opt to just use cut-to-length hose, but the advantage to the set I got is that they're molded to the factory shape, which is a plus. Any forced bends to an otherwise straight hose will restrict the hose's flow. That's why a molded set is really the better option. At the end of the day, it's really just poor design to run rubber hoses in between a frame rail and the bed at an angle.
Junior User
Joined: Dec 2010
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I have the exact same problem with my '74 SCS and my '63 Falcon Squire. Here in CA, those accordian sleeves make it even worse. I basically have to shove all my weight against the nozzle and hold it as it goes into the filler neck and then slowly twist the nozzle from side to side till it doesn't back out as I fill. I get all kinds of dirty looks from the attendants, but oh well...
The thing I hate the most is that the dripping fuel discolors the paint. And at $4.75/gallon, I probably spill enough that would buy me a hot dog and a Coke, otherwise.
The thing I hate the most is that the dripping fuel discolors the paint. And at $4.75/gallon, I probably spill enough that would buy me a hot dog and a Coke, otherwise.
Postmaster
Joined: Apr 2000
Posts: 2,881
Likes: 1
From: North of Tulsa, Oklahoma
I used to be able to fill up full speed. One day i ran into the same issue. I could only fill with the slowest speed possible. My problem is the filller hose is showing a crease between the frame rail and bed. My replacement hose was generic hose from the auto parts store. It did not have the metal C shaped reinforcement to keep the hose from crimping in that spot. I have the correct vent hose and filler hose now and will be replacing mine this weekend.
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