The Ford Barn

terabytemc · 08-08-2022, 09:22 PM

Is there a way to stop the drip of gas that runs down the firewall where the gas line runs through the firewall to the glass sediment bowl assembly, I’ve tried several times to thread the fitting making sure it was on straight.

Jim/GA · 08-08-2022, 09:39 PM

Is the gas running down the firewall inside the car? Or under the hood in the engine compartment?

terabytemc · 08-08-2022, 10:51 PM

Both inside and outside

Bill G · 08-08-2022, 11:02 PM

It is certainly not normal so yes, there are ways to keep it from leaking. Most notably to have properly tight joints where the pipe from under the tank connects under the dash to the inside joint of the sediment bowl and the same under the hood. Have you checked those connections? Is is possible that a former owner took that sediment bowl off and did not put it back tight?

J Franklin · 08-08-2022, 11:18 PM

Use some pipe dope then let a neighbor teenager get it real tight.

Y-Blockhead · 08-09-2022, 12:32 AM

Sponsored Links (Register now to hide all advertisements)

If it is leaking at the tubing flare, I have had great success using ⅜" copper flare gaskets when I can not get the fuel lines to seal. Either try these or replace the insidee fuel line. https://www.amazon.com/Legines-Coppe...38&sr=1-1&th=1 Some local hardware store carry them.

I would not recommend pipe dope in this situation, altho I have used Permatex Thread Sealant to seal the shut off valve where it enters the bottom of the tank. https://www.amazon.com/dp/B0002UEOP0...lig_dp_it&th=1

nkaminar · 08-09-2022, 06:48 AM

I use Permatex to stop small gas leaks but if the threads on the inlet side are damaged you will have to buy a new sediment bowl and maybe a new gas line.

https://www.snydersantiqueauto.com/p...9326&cat=41707
https://www.snydersantiqueauto.com/p...4044&cat=41707

aermotor · 08-09-2022, 07:06 AM

Quote:

Originally Posted by terabytemc

Is there a way to stop the drip of gas that runs down the firewall where the gas line runs through the firewall to the glass sediment bowl assembly, I’ve tried several times to thread the fitting making sure it was on straight.

I had the same problem and it was a cracked ferrule on the inside fuel line. I replaced the whole line assembly from a vendor. The line is steel so I don't recommend any splicing or replacing with copper inside the cab. I found it easier to keep from cross threading the fittings by loosening the 1 1/4" nut that holds the bowl to the firewall

rotorwrench · 08-09-2022, 10:54 AM

The fuel line can be replaced with a new part and they are affordable. If the fitting on the sediment bowl is bad or the housing is cracked then it should also be replaced. This stuff can be patched up but the patch may be temporary.

rocket1 · 08-09-2022, 01:48 PM

Quote:

Originally Posted by terabytemc

is there a way to stop the drip of gas that runs down the firewall where the gas line runs through the firewall to the glass sediment bowl assembly, i’ve tried several times to thread the fitting making sure it was on straight.

don't mess with a gas leak it might cost you your life,replace the parts it did not leak when leaving the factory!

ronn · 08-11-2022, 10:47 AM

like J Franklin, I use pipe dope- teflon with very good results.

08-08-2022, 09:22 PM	#1
terabytemc Junior Member Join Date: Jul 2022 Location: Northern California Posts: 13	Gas drip on firewall Is there a way to stop the drip of gas that runs down the firewall where the gas line runs through the firewall to the glass sediment bowl assembly, I’ve tried several times to thread the fitting making sure it was on straight.

08-08-2022, 09:39 PM	#2
Jim/GA Senior Member Join Date: May 2010 Location: Young Harris, GA Posts: 1,821	Re: Gas drip on firewall Is the gas running down the firewall inside the car? Or under the hood in the engine compartment? __________________ Jim Cannon Former MAFCA Technical Director "Have a Model A day!"

08-08-2022, 10:51 PM	#3
terabytemc Junior Member Join Date: Jul 2022 Location: Northern California Posts: 13	Re: Gas drip on firewall Both inside and outside

08-08-2022, 11:02 PM	#4
Bill G Senior Member Join Date: Jun 2017 Location: Walla Walla, WA Posts: 1,045	Re: Gas drip on firewall It is certainly not normal so yes, there are ways to keep it from leaking. Most notably to have properly tight joints where the pipe from under the tank connects under the dash to the inside joint of the sediment bowl and the same under the hood. Have you checked those connections? Is is possible that a former owner took that sediment bowl off and did not put it back tight?

08-08-2022, 11:18 PM	#5
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 5,963	Re: Gas drip on firewall Use some pipe dope then let a neighbor teenager get it real tight.

08-09-2022, 12:32 AM	#6
Y-Blockhead Senior Member Join Date: Jul 2011 Location: Redondo Beach, CA Posts: 5,849	Re: Gas drip on firewall Sponsored Links (Register now to hide all advertisements) If it is leaking at the tubing flare, I have had great success using ⅜" copper flare gaskets when I can not get the fuel lines to seal. Either try these or replace the insidee fuel line. https://www.amazon.com/Legines-Coppe...38&sr=1-1&th=1 Some local hardware store carry them. I would not recommend pipe dope in this situation, altho I have used Permatex Thread Sealant to seal the shut off valve where it enters the bottom of the tank. https://www.amazon.com/dp/B0002UEOP0...lig_dp_it&th=1 Last edited by Y-Blockhead; 08-09-2022 at 12:43 AM.

08-09-2022, 06:48 AM	#7
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,897	Re: Gas drip on firewall I use Permatex to stop small gas leaks but if the threads on the inlet side are damaged you will have to buy a new sediment bowl and maybe a new gas line. https://www.snydersantiqueauto.com/p...9326&cat=41707 https://www.snydersantiqueauto.com/p...4044&cat=41707 __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

08-09-2022, 10:54 AM	#9
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Gas drip on firewall The fuel line can be replaced with a new part and they are affordable. If the fitting on the sediment bowl is bad or the housing is cracked then it should also be replaced. This stuff can be patched up but the patch may be temporary.

08-11-2022, 10:47 AM	#11
ronn Senior Member Join Date: Feb 2011 Location: NNNNNNNNJJJJJJJJJJ Posts: 6,791	Re: Gas drip on firewall like J Franklin, I use pipe dope- teflon with very good results.