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Shortening the fuel tank neck

1474 Views 12 Replies 6 Participants Last post by  davbert
Has anyone shortened the fuel tank neck? In the 2 times I've added fuel, it's been a B%$^tard.

R
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Hi:
Why do you think that shortening the tank neck will cure the problem? I would check to see if the tank vent system is clear first of all. Basics first.
Regards Ian.
Ian, I see that you do not have a '67 GTV! From the factory, the filler neck is at the top of the fuel door in the body and it's a pain to get the 'environmentally friendly' nozzel down the spout without scraping the edge of the opening.
Common practice is to shorten the filler neck and add a rubber coupling like the 101 series has.
Randy
If you shorten the neck then filler boot won't work correctly (although your current boot maybe shot) The filling problem comes from the neck being designed before the introduction of unleaded gas and the vapor recovery systems added to the filler nozzles. Try some different gas stations until you find one with filler nozzles that fit better.
Well my '74GTV's neck hasn't been shortened and the brand new filler boot doesn't fit at all, so I haven't much to lose by shortening mine. As things stand now, it's about a 15 minute process to fill the tank- stuff a paper towel in the filler boot to catch the (unavoidable) splash, hold the nozzle just right and dribble the fuel in as carefully as I can so it doesn't spill all over and have the trunk open the whole time so the cabin doesn't fill with fumes. Then leave the trunk open and fiddle around a few more minutes to let the filler boot dry out and dissipate the fumes I do get. Doesn't seem to be any different at other stations.

Handy, no? Well, from what I've read in other threads on the subject it's no picnic to remove the tank for the neck modification, though I may give it a whirl this off-season (I'm a Midwesterner).

Oh, I forgot the last step in the process: get back in the car, start it up, and notice all the other drivers gawking at my Alfa, and think, "If it was easy, everybody'd be doing it..."
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Anyone who has the Road & Track magazine test in 1967 of the 'new' GTV, can see a picture of the filler neck sitting high in the fuel door opening. They showed the pic to explain the problem that they had putting gas in it!!!
And that was with pre-smog type nozzels!!!
Shortening the neck 1" will not affect the fitting of the boot. In fact, it is easier to fit then rubber boot to the body and then slide the short filler piece thru it and into the new coupling to the tank.
Roger, I'll show you how nice mine works now ! :^)
Randy
Ricardino:
My apologies, it's been a long time (I did own a '67 jr) and don't remember problems filling, but that was before emission stuff.
The one car that I wish that I still had (it was stolen)
Regards Ian.
Well my '74GTV's neck hasn't been shortened and the brand new filler boot doesn't fit at all, so I haven't much to lose by shortening mine. As things stand now, it's about a 15 minute process to fill the tank- stuff a paper towel in the filler boot to catch the (unavoidable) splash, hold the nozzle just right and dribble the fuel in as carefully as I can so it doesn't spill all over and have the trunk open the whole time so the cabin doesn't fill with fumes. Then leave the trunk open and fiddle around a few more minutes to let the filler boot dry out and dissipate the fumes I do get. Doesn't seem to be any different at other stations.

Handy, no? Well, from what I've read in other threads on the subject it's no picnic to remove the tank for the neck modification, though I may give it a whirl this off-season (I'm a Midwesterner).

Oh, I forgot the last step in the process: get back in the car, start it up, and notice all the other drivers gawking at my Alfa, and think, "If it was easy, everybody'd be doing it..."

Sounds like much trouble. The boot will fit, very difficult to install, there have been threads, lots of swearing, mangled fingers, heating the boot in hot water and silicon spray, I've done a number of them, takes about an hour. Here in the basin I've found the pump nozzles with coiled outer wire are the worst. Keeping the handle "up" and the nozzle "down" seems to help. In the old days the nozzles were curved, now they are straight, Maybe someone makes an adapter?
Anyone who has the Road & Track magazine test in 1967 of the 'new' GTV, can see a picture of the filler neck sitting high in the fuel door opening. They showed the pic to explain the problem that they had putting gas in it!!!
And that was with pre-smog type nozzels!!!
Shortening the neck 1" will not affect the fitting of the boot. In fact, it is easier to fit then rubber boot to the body and then slide the short filler piece thru it and into the new coupling to the tank.
Roger, I'll show you how nice mine works now ! :^)
Randy
cool!!!!!!!
Maybe someone makes an adapter?[/QUOTE]

try using a old radiator hose...

d
Maybe someone makes an adapter?[/QUOTE]

try using an old radiator hose...

d
No, don't use an 'old radiator hose'!
The gas fumes will eat it up and you'll have the same gas fumes in the trunk. I think that I got mine from NAPA or some such place, but you can order the correct 101 part from an Alfa supplier.
Randy
to clarify, its not a permanent mod, just using it during fill ups to clear the cali pump bellows. I been using mine for years as an extension funnel with no problems.

d
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