Gas Tank filling - are all years difficult?

[68Jcode]

I've seen plenty of threads about how difficult it is to fill the '67-'68 tanks at full flow without the auto shut off tripping. Is this true of all years, or is the '67-'68 filler neck that much worse for this behavior? Maybe the '69 and '70's with their taller tanks (and I assume shorter necks) are better behaved. I never had this problem with my '69 and '72 Buick Skylarks.

Thanks,

Andrew

 

[68stang351]

I don't know but my 68 is the same way. I have to hold the lever at about half throttle and turn the nozzle kind of sideways. If I don't it will either shut off or leak out.

 

[2+2GT]

The difference is in the wimpy little unleaded gas nozzles in use today. These cars were built for the big manly leaded gas nozzles, now almost extinct.

 

[tcrote5516]

I love mine, if you go full throttle it kicks off...when its full it never shuts off, just runs down the back bumper. Lovely.

 

[Tim65GT]

We have these large boot type which require you to put pressure on 'em against the filler neck and hold it tight to get the vapor recovery to operate. If you loose the seal, it kicks off. A real PITA.

 

[mrmustangman357]

on 65-66, does it automatically stop when its full? I never filled mine all the way up, i was afraid it would just shoot fuel out the cap when i take off . . .

somewhat related

 

[Cobra5.0Jeep]

I plan on just holding the nozzle just in case the damn thing pops out and scratches my car.

 

[2nd Mustang]

We have these large boot type which require you to put pressure on 'em against the filler neck and hold it tight to get the vapor recovery to operate. If you loose the seal, it kicks off. A real PITA.

View attachment 233257

I have the same trouble with my 67 coupe. What I've found is that if the boot is in good shape, I usually don't have a problem but if I see that the boot doesn't sit square against the gas filler hole due to being old, it will usually spill gas from the start. I just have to leave and look for another station.

 

[CraigMBA]

Unlike modern cars, we have to pump gas. I find I have minimal problems if I hold the nozzle at a 90 to the bumper (as opposed to down). New cars have the filler angled almost straight up and work unattended.

 

[2+2GT]

Like I said, it's the government's fault. When they mandated unleaded gas, the required unleaded cars to have restrictions in the filler neck for new, tiny nozzles, so people wouldn't be able to put the cheaper leaded gas in their unleaded-only cars- The "normal" nozzles were way too big. The big nozzles worked just fine in Mustangs, they were about twice the size of the ones we have to use now.

Bet you just thought this was crummy design on Ford's part? Nope- Just another example of government regulation screwing up your life.

 

[zm830101]

hmmm... never new about the unleaded gas nozzle...neat stuff.

 

[kylehamilton79]

The first time I went to put gas in mine I started pumping gas and walked to the front of the car to check everything and the gas nozzle fell out of the filler and was on the ground pouring gas all over the ground and out of my bank account. Then I couldn't get the gas cap to line up and had a hard time with the safety wire getting twisted the wrong way. Thank goodness for aftermarket pop-open gas caps.

 

[Bullitt]

I've been brainstorming ideas to redo the fillerneck on my '67 so it'd work as well as a new car or least better than what we have now.

I'd had visions of selling this if I ever got it to work.

Based on this thread, it seems like what I thought might be a crazy idea actually might have some legs.

Thoughts?

 

[88gt]

I've been brainstorming ideas to redo the fillerneck on my '67 so it'd work as well as a new car or least better than what we have now.

I'd had visions of selling this if I ever got it to work.

Based on this thread, it seems like what I thought might be a crazy idea actually might have some legs.

Thoughts?

I'd be happy to put you ideas to "paper"..I have access to "Inventor/AutoCAD"..
Shoot me a PM to discuss...

 

[10secgoal]

It doesn't have to seal on the smog versions, as much as you need to make it think it has. I always grabbed it and pulled it back, and barely stuck in the nozzle. Then shot it up against the roof of the fill neck

 

[2nd Mustang]

It doesn't have to seal on the smog versions, as much as you need to make it think it has. I always grabbed it and pulled it back, and barely stuck in the nozzle. Then shot it up against the roof of the fill neck

I've tried that method and it works most of the times but there are times when it didn't.

 

[CraigMBA]

It doesn't have to seal on the smog versions, as much as you need to make it think it has. I always grabbed it and pulled it back, and barely stuck in the nozzle. Then shot it up against the roof of the fill neck

That's how I do it too.

 

[68EFIvert]

Check this out. Great idea and a very cheap fix.
Fuel filler Mods

 

[Bullitt]

Check this out. Great idea and a very cheap fix.
Fuel filler Mods

Thanks for the post! That's basically what I'd thought of for "stage 1".

 

[mrmustangman357]

or you could just put a cap at the very end that has the size. Just locate it a little in on the neck so the slots for the fuel tank cap still workand tack it in place