Thanks for the ideas to solve this problem. I'm going to go into the charcoal canister circuit and explore there. I'll get back to this thread with outcomes.

I just have to believe that there is something to remedy this. I know if the problem existed when the car was new, there would be a recall.

Best,

Lee

My 968 has the same problem. I just take it slow.

one,

does it feel like the gas tank is filling up with backpressure? If so, then I think it might be the venting system. I like Randy's suggestion of disconnecting the cannister, but be careful, don't fill the tank up all the way, just put enough gas in to see if that's the problem.

Try 9 oclock position, 3/4 insert, 1st click and only fill to just over half tank-- i never fill up as i don't want all that excess weight

As others have mentioned, pull the nozzle back about 1/2 way. Had the same problem on my 79 SC. Also, try filling at a slower delivery rate.

The more you put in, the more your car weighs. I judge my gallons by the miles I plan to drive and the gas stations in between.

I have removed my charcoal canister and do not have this problem. I do not use the reverse grip either, nor do I sit on my hand first to make it numb. Maybe you should have a stranger pump it.:cool:

I had to replace the tank on my 79SC when I purchased it because the vent had gotten plugged and the tank imploded and broke the sending unit :eek:
It didn't leak but I could not install a new sending unit with the bottom of the tank sucked up.

The moral is, check that vent system!!!

+1!! I typically purchase fuel at only 2 different gas stations close to my home. Out of a total of 16 pumps between 2 stations, there are 4 of them that will definitely cause this problem! You might try different pumps, or different gas stations to see if this might be the problem!

I believe what he meant here is that as the tank nears full, gas sloshing around goes up the filler neck breather tube and then some air goes in as it should and gas burps out the breather tube in the filler neck.

This burb can pretty pretty annoying and spill put gas.

So why???

When the SCs were being imported the US still had leaded gas at the pumps and the FED/EPA did not want the cars using leaded gas when they were designed for unleaded. So the FED EPA mandated different size gas delivery nozzles at the pump. The original Leaded gas nozzles were not changed and the new unleaded delivery nozzles were smaller. The FED/EPA mandated fuel nozzle restrictors in the unleaded cars so you could not fill with leaded gas.

But guys like me wanted the higher octane leaded gas and we removed our cats and built turbos and unleaded gas at 87-89 octane was not good.

So we broke the fuel nozzle restrictors out of the filler necks so we could use the larger leaded pump gas. No one ever puts them back.

When the nozzle restrictor was removed, this exposed the top of the filler neck vent tube to the open air. When it burps, it now burps out. With the nozzle restrictor in place, it burps against the bottom of the restrictor plate and then flows back down to the tank as it should.

So if your SC is burbing gas out an exposed vent tube in the filler neck, I bet your fuel nozzle restrictor has been removed.

Look for three small broken welds in the filler neck just above that vent tube.

See picture.

Just above the vent tube is the broken weld line where my nozzle restrictor was knocked out years ago.

So if you don't want the gas to burp, find a filler neck that still has the unleaded nozzle restrictor above the vent tube.

Those of you with no burping SC probably have nozzle restrictors in place for unleaded.

The rest of us just have to be careful and pump slower as the tanks gets nearer full. Burp burp burp!!!!





http://forums.pelicanparts.com/uploa...1205246067.jpg

Common SC problem. Do a search here. As I recall, I turned the nozzle 180 degrees, handle towards passenger side, and filled manually until I heard the nozzle clicked itself closed. As I recall, I may not have had to rotate the nozzle 180 degrees after a few times. Just manually fill, pressing the lever just short of the nozzle closing, and it will close when it's near full. You can feel it.

How you hold (orient) the nozzle may effect whether the fuel delivery auto shut off accuates and how fast you can fill but has nothing to do with why the vent tube burps gas......

Fill slower it burps less but that is not why it burps.....look for the nozzle restrictor...

Mine has the anti burp fitting, it works.

Absolutely! THE key.....+1...

Best,

I must be lucky. I fill my '82 SC (RoW, if it makes any difference) with the nozzle up, pushed all the way into the filler tube (if I don't, the rubber on the nozzle won't seal to the filler tube and the pump shuts off).

I stand there and pump at full flow until it clicks and shuts off. If I'm a nickel or dime off an even sum I'll do little trigger bursts until it's even. Never puddles or overflows - :confused:.

When I first bought the car I about went nuts trying to pump gas with the nozzle in the "usual" orientation (seal kept breaking and flow would stop). Then I read the "turn the nozzle upside down" tip - here I think - and no problems since.

Funny thing, one time a young guy stops on the way back to his car and says "I have one of these at home. Does filling it like you're doing make it easier?" "See the meter spinning?" I smiled. So the kid says, "Yeah well, I'll stick with the slow way. The way you're doing it looks real dorky!" and walks off to his car. Ah, impressionable, insecure youth :D.

why can't you just pull back the air bellows thingy, such as when you are filling up a gas tank for a lawnmower? Those things have zero venting. You have to hold the air suction hood back for the pump to work.

I used a "Husky brand" nozzle at the last fill up at low setting at 11:00 with it angled back as one of you had said. No gush out this time.

I have the restrictor in place.

I'll give the suction nozzle pull back a try.

Thanks to all again.

Lee

That's what I wound up doing. You pump manually just short of it cutting off, and it will cut off when it's full. You can feel it.