Author Topic: Filler neck trouble!  (Read 19743 times)

Offline 76LongBox

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Re: Filler neck trouble!
« Reply #30 on: November 30, 2015, 03:24:15 PM »
This is a problem on my '76 too.  I typically just run it a little slower than "full bore" and listen for it to be full to keep it from spilling out.

Offline philo_beddoe

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Re: Filler neck trouble!
« Reply #31 on: November 30, 2015, 07:14:50 PM »
Yup, thats what i have to do.
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline LTZ C20

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Re: Filler neck trouble!
« Reply #32 on: November 30, 2015, 10:14:35 PM »
Ok. With this in mind, I got gas earlier tonight, I got a total of 15 gallons but the first 10 or so I did on full blast with no issue. I just stuck it in there and let it rip.
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Offline AZ87V10

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Re: Filler neck trouble!
« Reply #33 on: November 30, 2015, 10:37:26 PM »
I usually don't seem to have a problem with gassing up my truck. Sometimes if I stick the nozzle all the way in it will pump for a few seconds and click off. I've just learned to pull the nozzle out partway and lock it on slow speed setting and I don't have any issues filling up or have it spray out or anything. Now granted in my part of the state I don't have to deal with emissions testing or anything so we don't have the stupid rubber boots on the fuel nozzles. They have them in the Phoenix and Tucson metro areas though.
1987 Chevy V-10 Silverado short bed, 350TBI, 700R4, NP208, 3.73's, 31's
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Offline philo_beddoe

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Re: Filler neck trouble!
« Reply #34 on: December 01, 2015, 08:35:27 AM »
We have no emmisions, no rubber boots, nothing. Still have a problem. I have a feeling if i replace both hoses (fill and vent) that will do the trick.  Will use a flex for the main fill hose. Is this hose the same as rad hose?
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline Irish_Alley

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Re: Filler neck trouble!
« Reply #35 on: December 01, 2015, 09:36:39 AM »
rad hose can work but its not rated for fuel 
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Offline Irish_Alley

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Re: Filler neck trouble!
« Reply #36 on: December 01, 2015, 09:41:31 AM »
but im kind of curious if this will work just due to the fact you still will have and 90° then slope downward. Blaz when you replace the filler neck does this fix the problem?
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline philo_beddoe

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Re: Filler neck trouble!
« Reply #37 on: December 01, 2015, 11:16:43 AM »
I will start looking for flex fuel hose, prob 2 in.
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline 76LongBox

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Re: Filler neck trouble!
« Reply #38 on: December 01, 2015, 12:59:22 PM »
I used a radiator hose once. I had a hard time with the guys at O'Reilly trying to find one that had the right diameter and the right bend in it, but did eventually find one that I made work.  However, not being rated for fuel, it didn't take long before I had to replace again.  I found the replacement hoses at the site that shall not be named in this forum, and so far, so good.

Offline ehjorten

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Re: Filler neck trouble!
« Reply #39 on: December 01, 2015, 02:56:30 PM »
i replaced both fuel tanks, senders, fill necks and hoses on my '77, not for filling issues, but for 35+ years of corrosion and it didn't make a difference on the filling pain at the pump!

It is the year of the vehicle that makes a difference in these 3rd gen. trucks.  Pre '73-'78 has the small-neck fill (1-3/8") with just the cap on the side of the bed; like my '77!  These suck to fill!  Then like '79-'83 or whatever they had a fuel door and a slightly larger fill neck (1-5/8").  I assume these are easier to fill.  '84-'87('91) had another version with the fuel door (I think these are 1-3/4").  I obviously have this in my '91 Crew.  This is easy to fill at just about any fuel pump, but there are some stations that have weird nozzle lengths and shapes that don't like it and it will click off on occassion.

Now...don't take this as the gospel!  I am sure there are exceptions and I could have got the neck sizes wrong.  I even think there is a fill hose that is 1-5/8" on one end and 1-3/8" on the other.  The point is that GM did move towards bigger diameter fill necks.
« Last Edit: December 02, 2015, 01:44:18 PM by ehjorten »
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Offline philo_beddoe

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Re: Filler neck trouble!
« Reply #40 on: December 01, 2015, 03:39:57 PM »
I'm taking my 77 back to the dealer! Glad i got the extended warranty! Lol
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline werewolfx13

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Re: Filler neck trouble!
« Reply #41 on: December 01, 2015, 11:28:47 PM »
You can buy somewhat flexible lengths of fuel filler hose at parts stores, but its EXPENSIVE, and not real flexible....works well for flatbeds and the like, not so hot for having to make short sharp bends...has to be cut with a chop saw or hacksaw, as its steel wire reinforced....Tends to run $20-$35/foot, depending on diameter.
Chris
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Offline philo_beddoe

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Filler neck trouble!
« Reply #42 on: December 02, 2015, 07:00:51 AM »
Wow! Forget that stuff. Plus these filler necks are very low!!! I have to squat down or reach way down and that gets crampy after 10 min. Need more gravity!
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline LTZ C20

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Re: Filler neck trouble!
« Reply #43 on: December 02, 2015, 09:50:06 AM »
The level at which people find this issue disturbing is making me laugh. I never have issues and it seems that lots of you guys are always struggling with this, I'm not laughing at you guys of course, it's comical how much this happens and apperently for the amount of time I've owned my truck, I've been locked in the box of easy fuel filling, now you guys slid the key under the door and now the doors open but I'm still in here lol I feel bad for you guys that fight this I really do.
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Offline philo_beddoe

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Re: Filler neck trouble!
« Reply #44 on: December 02, 2015, 08:23:01 PM »
I tried the upside down pump, much worse! Somehow, the gas spilled all behind the bed body! Weird. Holding the gas nozzle normal filled fine, but of course at a trickle. Whats your secret LTZ?!!!!
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1