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Mystery at the gas pump
Posted by: Timothy Shortle ()
Date: June 11, 2017 03:50PM

So last Sunday leaving Taos New Mexico I filled up our 67 Monza Sport Sedan for our 250 mile drive back to Durango Colorado. The gas gauge went about an 1/8th of a tank over the F mark. I have been driving the car this week and actually wanted to drive it out of gas just to see where it would run out (I have been carrying a gallon of gas for the last 50 miles or so). When the gauge got just below 1/8th of a tank I ran out of gas (no mystery there). I put in the gallon I had with me and went to the gas station (about 5 miles away). I filled the tank BUT WAS ONLY ABLE TO PUT IN JUST UNDER 10 GALLONS. My gauge went about 1/8th past F. That is my mystery. I was thinking I would be able to put in around 13. I know these are 14 gallon tanks. Anyone?

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Re: Mystery at the gas pump
Posted by: ac1948 ()
Date: June 11, 2017 04:01PM

Pick up tube not low enough to pick up 3 or 4 gallons? Jerry

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Re: Mystery at the gas pump
Posted by: Spectre ()
Date: June 11, 2017 04:31PM

Jerry's suggestion is a good one. I also had this happen once and it was a dirty tank sock.

David Clamp


1965 Corsa convertible - 140 4spd/3.55/AM-FM

2013 Mustang GT convertible - 5.0, 6spd auto, Procharger i-1

2003 Miata SE - 6spd manual (wife's toy)

"Victory is mine!" - SG

Warner Robins, GA (15 miles south of Macon)

Click for Warner Robins, GeorgiaForecast


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Re: Mystery at the gas pump
Posted by: MattNall ()
Date: June 11, 2017 05:04PM

As suggested...

Run it out again...

Pull sender and bend pickup so it sets on bottom...close!!

Then Bend Rod for float to not read "E" until you are down to approx. 1 gal....

Approx. 1" off bottom.. Factory is 3-4 gal.! Ridiculous! imo

Makes passengers less nervous when driving over 150 miles!!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Mystery at the gas pump
Posted by: richard1 ()
Date: June 12, 2017 07:59AM

When I made my sender, I bent all the parts until I got all of it out when empty, and the gauge reads decently. When it stops bouncing on E, I have 4 liters left. When I fill it I have to consume about 4 liters for it to get down to F.

Now if I could only get gas station attendants to not pull the nozzle full speed and splash out all over the paint, I'd be good.

Restoration in Bolivia
Richard's Mini Pickup
Richard's Corvair
Richard's Renault Dauphine

Selection of the Right Motor Oil for the Corvair
Selection of the right transmission oil for the corvair
How to polish and restore stainless and aluminum trim

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Re: Mystery at the gas pump
Posted by: BobV66Vair ()
Date: June 12, 2017 08:58AM

What about the electrical parts? Don't they get dirty and corroded over time? I don't know if they can be cleaned but check that when it's out of the tank. Not that expensive to buy a new one and the related parts to install it.

I also read a post about the floats being in the wrong position so look for that one and make sure the float is correctly positioned.

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: Mystery at the gas pump
Posted by: Timothy Shortle ()
Date: June 12, 2017 10:37AM

These are all great suggestions and I intend to follow thru with some of these. Just for clarity my mystery isn't with the gauge reading but more with the amount of gas I was able to put in AFTER running out of gas.

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Re: Mystery at the gas pump
Posted by: MattNall ()
Date: June 12, 2017 11:08AM

Right, and the first two replies address that!

Then my advice of adjusting the Float arm is to give you a more accurate reading..





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Mystery at the gas pump
Posted by: The Stig ()
Date: June 12, 2017 11:24AM

Maybe the sender pickup is too high. So that there still were 3-4 gallons in there. Less likely in a corvair but I had a ford pickup truck that would do that. Would 'run out' with 1/3 of a tank. Pickup tube had a pinhole in it. Also the replacement tanks don't seem to hold as much as the originals.

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Re: Mystery at the gas pump
Posted by: Murphy ()
Date: June 13, 2017 06:35AM

If it were mine, I'd leave the pickup tube where it is. Might help prevent sucking up crap on the bottom of your tank.

65 Monza Coupe
61 500 Coupe (under Construction) Getting close.

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Re: Mystery at the gas pump
Posted by: jmaechtlen ()
Date: June 13, 2017 06:39AM

Well, if the pickup sock is in place, it won't pass anything large.
If you pull the pickup/sender out for inspection, you can see what's in there, clean if necessary.

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Re: Mystery at the gas pump
Posted by: cfmann ()
Date: June 13, 2017 07:06AM

or your local filling station as a mis-calibrated fuel dispensing equipment.

seems like you your digging into something a littler heavier than your what original intentions were. but that's cool, will be interesting to see what you discover.

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Re: Mystery at the gas pump
Posted by: irfgt ()
Date: June 13, 2017 08:49AM

richard1 Wrote:
-------------------------------------------------------
> When I made my sender, I bent all the parts until
> I got all of it out when empty, and the gauge
> reads decently. When it stops bouncing on E, I
> have 4 liters left. When I fill it I have to
> consume about 4 liters for it to get down to F.
>
> Now if I could only get gas station attendants to
> not pull the nozzle full speed and splash out all
> over the paint, I'd be good.


What's a "Gas Station attendant"? LOL

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Re: Mystery at the gas pump
Posted by: RobertC ()
Date: June 13, 2017 08:55AM

irfgt Wrote:
-------------------------------------------------------
> richard1 Wrote:
> --------------------------------------------------
> -----
> > When I made my sender, I bent all the parts
> until
> > I got all of it out when empty, and the gauge
> > reads decently. When it stops bouncing on E, I
> > have 4 liters left. When I fill it I have to
> > consume about 4 liters for it to get down to F.
> >
> > Now if I could only get gas station attendants
> to
> > not pull the nozzle full speed and splash out
> all
> > over the paint, I'd be good.
>
>
> What's a "Gas Station attendant"? LOL

Richard is in Bolivia

But, to your comment - gas station attendants are still alive and well In Oregon. You are not allowed to pump your own gas. Though, some attendants will let you.

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Re: Mystery at the gas pump
Posted by: Lane66m ()
Date: June 13, 2017 08:55AM

Must be in New Jersey they a law that normal human beings are responsible enough to pump their own fuel. It is a union thing I believe.

But Bolivia where Richard is has regulation also.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1966 Corsa Turbo Coupe, 180 hp 4 Spd
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2015 GMC Sierra SLT Crew Cab
1968 Camaro SS Coupe 350 CI 295+ HP PG
1947 Farmall A tractor 15 hp





Edited 1 time(s). Last edit at 06/13/2017 08:56AM by Lane66m.

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Re: Mystery at the gas pump
Posted by: richard1 ()
Date: June 13, 2017 11:54AM

Not only is it only the attendant that can dispense, but the attendant puts the license plate into the computer. The computer matches that with the information transmitted from the chip on the windshield to make sure the plates match with the car. That also registers the amount of gas purchased and the location in the computer of the government, nationwide.

So at any time they want, the government can see where and when my car got gas, and can more or less track my movement around the country.

The computer then also issues me a receipt that I can use to declare 1/3 of the 13% VAT collected against my income tax withholding each month, as long as the car belongs to me.

Restoration in Bolivia
Richard's Mini Pickup
Richard's Corvair
Richard's Renault Dauphine

Selection of the Right Motor Oil for the Corvair
Selection of the right transmission oil for the corvair
How to polish and restore stainless and aluminum trim

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Re: Mystery at the gas pump
Posted by: corventure Dave ()
Date: June 15, 2017 07:55AM

Oregon also has a no you pump law... But they let you fill your motorcycle.
I believe it's a job creating law they passed. But I hear it's hard to find attendants who will work for the low pay to be a gas pumper attendant at stations. Sounds to me like one of those not so smart laws that can never be repealed... And how did something like this not get passed here in Kalyphornya... where ultra stupid legislation prevails!confused smiley

grinning smiley

Tim,

I would pull the sender. Inspect the tank for debris and sludge. Connect the sender with test leads and see how it activates the gas gauge. Then make adjustments to the float arm, as needed.smileys with beer

Corventure Dave

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Re: Mystery at the gas pump
Posted by: Ed Dowds ()
Date: June 16, 2017 05:07AM

There are T shirts in New Jersey that say "Jersey girls don't pump gas".

When I get gas for my Model A street rod the pump jockies prefer me to pump the gas. They are confused by the stock gas filler in front of the windwield going into the cowl tank.

Dumb laws are seldom repealed in NJ.

Ed
Hillsborough, NJ
66 500 rear 4.3 V6 Corvair
69 350/350 TH Camaro was RS
30 Model A Ford Streetrod 350/400 TH
88 Celebrity Wagon (Daily Driver)

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Re: Mystery at the gas pump
Posted by: Jim Stukenborg ()
Date: June 16, 2017 11:51AM

I think "The Stig" may be onto something here. Once the gas level fell below the pin hole in the pickup, the pump would start to suck air. Is the Corvair pick up tube one piece or does it have a portion that can fall off? Jim

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Re: Mystery at the gas pump
Posted by: MattNall ()
Date: June 16, 2017 12:13PM

All one solid piece of tubing.





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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