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I just put in my first tank of gas after getting my truck painted. When I started pumping the gas, the gas pump kept shutting off, and then some gas spit back out of the fuel filler pipe. So I looked inside the fuel filler pipe, and the smaller "restriction" (for unleaded gas nozzles) is...gone? There is only a BIG hole. I don't remember it being like that before. It took a while to fill the tank up because the gas pump kept shutting off.
Shouldn't there be a smaller "restriction" inside the metal fuel filler pipe? Is it made into the metal fuel filler pipe? I contacted the body shop who painted my truck, and they don't seem to know why it's missing, either?
There should be a spring loaded flap that you were talking about.
Guess it came loose and fell into the tank.
Sure seems weird that it happened when it did!
Speaking of weird .....on my wife's car,..just the other day... she evidently ran over something that knocked the radiator drain petcock off without damaging anything else.
PITA fixing that!
Never saw or heard of that one.
So....I guess it is possible that it just happened when you got it back...but....weird...
If it is the flapper maybe you should try and run and run a flexible telescoping magnet down to see if its blocking. If not its usually the smaller line inside of the filler tube that comes loose
If its not the flapper, the only other thing I can think of is the metal plate that has the hole in it, but that is on there pretty good, Its welded I believe, I know cause I have chiseled it out to modify my filler. Can you upload a picture?
Lariat, maybe since the tab broke, it's blocking the inside black hose?
Also, do you have the original style filler neck, or the 87+ style?
Here is a reference picture for the inside of the necks.
Broken tab? I don't know.
The original filler pipe is still on the truck (Pre-'87), so I can't see anything other than the where the gas cap screws into the pipe and the rubber hose is on the other end.
I changed both tanks in an 86 with dual tanks a year ago. The vent tube in the pre-87 filler necks are thin and easily crushed or crimped. They are also not available. If something was done to the filler neck and the vent tube was damaged (restricted) you will get exactly what you have; a slow filling tank that burps back at you.
A search on filler necks will reveal various methods to deal with it. If you have a "big hole" then it is not stock. The pre-87 fuel cap does not screw in, the 87-up does.
If you do decide to upgrade to the 87-up be aware that the larger black filler tube will not seat into the older fuel tanks without some modification.
If its not the flapper, the only other thing I can think of is the metal plate that has the hole in it, but that is on there pretty good, Its welded I believe, I know cause I have chiseled it out to modify my filler. Can you upload a picture?
Devin
Here is a picture of the filler pipe with the gas cap removed. As you can see, it is just a big hole. It looks like something inside was cut off or broke off:
And here is a picture of the metal filler pipe connected to the rubber hose under the truck. What is that clip above the pipe for? Notice the shiny part on the metal pipe [right under that clip] where it *appears* an additional band clamp once was. But for what reason?
LARIAT 85, the "clip above the pipe" is a hanger to support the neck. The hose clamp has been removed... look for it to the right [still around the metal pipe]. I bet the bed was removed while the truck was being painted and the clamp was loosened.
LARIAT 85, the "clip above the pipe" is a hanger to support the neck. The hose clamp has been removed... look for it to the right [still around the metal pipe]. I bet the bed was removed while the truck was being painted and the clamp was loosened.
Yes, the bed was removed for painting, and the rubber hose was replaced because the original one was dry rotted. There is no hose clamp to the right of the metal pipe hanging around - but that is easily fixed.
What about the first picture? What is going on with the filler pipe? It there supposed to be a metal "flap" in there for the gas nozzle restrictor? I haven't had the truck in so long, I can't remember what it is *supposed* to look like.
I just went outside to look into the fuel inlet hose on my 1986 and about 2 inches down, there is a metal piece which effectively blocks the opening except for the "flapper" which is just large enough for the unleaded size gas nozzle to be inserted. The flapper is spring loaded... yours is missing.
I just went outside to look into the fuel inlet hose on my 1986 and about 2 inches down, there is a metal piece which effectively blocks the opening except for the "flapper" which is just large enough for the unleaded size gas nozzle to be inserted. The flapper is spring loaded... yours is missing.
Thanks, Chief. That's what I thought. I wonder where mine went?
How is the metal "flapper" attached to the filler pipe? Is that metal piece that contains the "flapper" small enough to fall into the hose? Or, would it have to be removed from the outside?
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