The Ford Barn

AR · 10-30-2019, 06:29 PM

I started to notice that every time I fill up the gas tank on my 56 Merc wagon I get a strong gas smell inside the car. I have checked for gas leaks from the carburator back to the gas tank with nothing showing up. Does anyone know what the problem might be?
Thanks
AR

paul2748 · 10-30-2019, 08:03 PM

Did you look where the sender is? It can leak there

AR · 10-30-2019, 08:55 PM

I have not check it but I will now.
Thanks for your input.
AR

Alaska Jim · 10-30-2019, 08:56 PM

I had a small leak on the hose on the metal filler neck tube that goes from the tank to the outside of the car. it was leaking down near the tank and could not bee seen, until I pulled all the carpet, and trunk liner from the trunk. just a thought. This was on my '51 Merc.

50fordcoupeman · 10-31-2019, 12:56 AM

When I got my car, it had a seep around the sending unit access hole. Mostly leaked only upon gas fill up. Hope this helps.

poolplayer1 · 10-31-2019, 12:55 PM

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I had the same problem you have with my 55 wagon. In my case,it was a bad gasket at the sending unit flange. Put a new gasket in it and the small was gone.

Ole Don · 10-31-2019, 01:01 PM

Yup, the sender gasket is dried up. Never park inside with a full tank and it won't bother you. Removing the tank is a bear the first time.

Ford56 · 11-03-2019, 12:38 PM

Quote:

Originally Posted by Ole Don

Yup, the sender gasket is dried up. Never park inside with a full tank and it won't bother you. Removing the tank is a bear the first time.

I agree 100%; if you can leave about a gallon or two out of a "full tank", it could make a difference in the smell. Worked for me.

Daves55Sedan · 11-03-2019, 11:23 PM

It's a good bet that the sending unit cork gasket is at fault, because there is really nothing besides that little round cover-plate separating the sender from the hole thru the floor for the sending unit. So, you'd definitely get the smell.
Another thing to check is the rubber hoses that connect the filler neck and vent tube to the tank. If your gas tank is overfull, gas may be encroaching upon those hose connections. If the worm-gear clamps are not tight enough, some gas might leak, but I don't think you'd smell it so much inside the car.

AR · 11-06-2019, 11:32 PM

Thanks everyone for your comments. I checked the sender unit gasket and it was dry. I will check the hoses at the filler tube. I also will drive the wagon and get the gas level down to see when it stops smelling.
Thanks again

10-30-2019, 06:29 PM	#1
AR Junior Member Join Date: May 2010 Location: Riverside, Ca. Posts: 17	Gas Smell Inside I started to notice that every time I fill up the gas tank on my 56 Merc wagon I get a strong gas smell inside the car. I have checked for gas leaks from the carburator back to the gas tank with nothing showing up. Does anyone know what the problem might be? Thanks AR

10-30-2019, 08:03 PM	#2
paul2748 Senior Member Join Date: May 2010 Location: Midland Park, NJ Posts: 3,978	Re: Gas Smell Inside Did you look where the sender is? It can leak there __________________ 48 Ford Conv 56 Tbird 54 Ford Victoria

10-30-2019, 08:55 PM	#3
AR Junior Member Join Date: May 2010 Location: Riverside, Ca. Posts: 17	Re: Gas Smell Inside I have not check it but I will now. Thanks for your input. AR

10-30-2019, 08:56 PM	#4
Alaska Jim Senior Member Join Date: May 2010 Location: Palmer, Alaska Posts: 1,575	Re: Gas Smell Inside I had a small leak on the hose on the metal filler neck tube that goes from the tank to the outside of the car. it was leaking down near the tank and could not bee seen, until I pulled all the carpet, and trunk liner from the trunk. just a thought. This was on my '51 Merc.

10-31-2019, 12:56 AM	#5
50fordcoupeman Senior Member Join Date: Mar 2016 Location: LaGrande Oregon Posts: 865	Re: Gas Smell Inside When I got my car, it had a seep around the sending unit access hole. Mostly leaked only upon gas fill up. Hope this helps.

10-31-2019, 12:55 PM	#6
poolplayer1 Senior Member Join Date: Sep 2015 Posts: 399	Re: Gas Smell Inside Sponsored Links (Register now to hide all advertisements) I had the same problem you have with my 55 wagon. In my case,it was a bad gasket at the sending unit flange. Put a new gasket in it and the small was gone.

10-31-2019, 01:01 PM	#7
Ole Don Senior Member Join Date: May 2010 Location: St. Michael, Minnesota Posts: 1,713	Re: Gas Smell Inside Yup, the sender gasket is dried up. Never park inside with a full tank and it won't bother you. Removing the tank is a bear the first time.

11-03-2019, 11:23 PM	#9
Daves55Sedan Senior Member Join Date: May 2010 Location: Granite City, Illinois Posts: 3,008	Re: Gas Smell Inside It's a good bet that the sending unit cork gasket is at fault, because there is really nothing besides that little round cover-plate separating the sender from the hole thru the floor for the sending unit. So, you'd definitely get the smell. Another thing to check is the rubber hoses that connect the filler neck and vent tube to the tank. If your gas tank is overfull, gas may be encroaching upon those hose connections. If the worm-gear clamps are not tight enough, some gas might leak, but I don't think you'd smell it so much inside the car.

11-06-2019, 11:32 PM	#10
AR Junior Member Join Date: May 2010 Location: Riverside, Ca. Posts: 17	Re: Gas Smell Inside Thanks everyone for your comments. I checked the sender unit gasket and it was dry. I will check the hoses at the filler tube. I also will drive the wagon and get the gas level down to see when it stops smelling. Thanks again

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