The Ford Barn

vern hodgson · 04-09-2016, 07:06 AM

Can the gas shut off be repaired and if so any pointers or cautions? 24 coupe.

Royce P · 04-09-2016, 08:14 AM

Install a ball valve shutoff at the carburetor.

The petcock on the fuel strainer can be made to stop leaking. You have to drain the gas, then use lapping compound to fit the tapered surfaces to one another. Carefully clean out all the lapping compound, and use a bit of aircraft fuel lubricant on the valve surfaces before assembling it for the last time. I use a product called "EZ Turn". You can order a tube online from Aircraft Spruce Inc.

The thing is, if you use the valve more than a few times it will start leaking again. That's the reason for installing a shutoff under the hood at the carburetor.

redmodelt · 04-09-2016, 10:15 AM

The question is kinda open ended. When and where is it dripping? If it's dripping at the carb when the car is not running, Royce's suggestion is what many of us do. If it's dripping when priming the car to start, that's normal. Royce's picture shows a regular type brass shut off valve. I have found that many of them stick badly after a while and you need a pair of pliers to use it. The next one(s) I install will be the ball type. While they do not look era correct, it's a safety item and it better to be able to shut the gas off quickly if needed.

Layden B · 04-09-2016, 11:18 AM

A shutoff at the carburetor is very convenient but....you still need the shutoff at the tank to be operational. Most fires are under the hood where a carburetor shutoff may be in the fire and a common source of leaks which you will need to turn off the gas to fix will be the line from the tank to the carb.

Royce P · 04-09-2016, 07:29 PM

Totally agree - my point is, if the shutoff under the car is used every time you drive, it starts leaking. That's why you keep the one at the tank operational, but leave it on 99% of the time.

Quote:

Originally Posted by Layden B

A shutoff at the carburetor is very convenient but....you still need the shutoff at the tank to be operational. Most fires are under the hood where a carburetor shutoff may be in the fire and a common source of leaks which you will need to turn off the gas to fix will be the line from the tank to the carb.

redmodelt · 04-09-2016, 10:19 PM

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My shut off is at the tank in the fuel line. I can reach it from under the car or just lift the floor board. My tank shut off ceased to function a long time ago.

04-09-2016, 07:06 AM	#1
vern hodgson Senior Member Join Date: Dec 2014 Location: langley, wa. Posts: 642	Dripping gas Can the gas shut off be repaired and if so any pointers or cautions? 24 coupe.

04-09-2016, 08:14 AM	#2
Royce P Senior Member Join Date: May 2010 Location: Tulsa OK Posts: 476	Re: Dripping gas Install a ball valve shutoff at the carburetor. The petcock on the fuel strainer can be made to stop leaking. You have to drain the gas, then use lapping compound to fit the tapered surfaces to one another. Carefully clean out all the lapping compound, and use a bit of aircraft fuel lubricant on the valve surfaces before assembling it for the last time. I use a product called "EZ Turn". You can order a tube online from Aircraft Spruce Inc. The thing is, if you use the valve more than a few times it will start leaking again. That's the reason for installing a shutoff under the hood at the carburetor. __________________ 1910 Touring 1914 Touring 1915 Touring 1917 Torpedo Runabout

04-09-2016, 10:15 AM	#3
redmodelt Senior Member Join Date: May 2010 Location: Portland OR Posts: 6,344	Re: Dripping gas The question is kinda open ended. When and where is it dripping? If it's dripping at the carb when the car is not running, Royce's suggestion is what many of us do. If it's dripping when priming the car to start, that's normal. Royce's picture shows a regular type brass shut off valve. I have found that many of them stick badly after a while and you need a pair of pliers to use it. The next one(s) I install will be the ball type. While they do not look era correct, it's a safety item and it better to be able to shut the gas off quickly if needed.

04-09-2016, 11:18 AM	#4
Layden B Senior Member Join Date: May 2010 Posts: 300	Re: Dripping gas A shutoff at the carburetor is very convenient but....you still need the shutoff at the tank to be operational. Most fires are under the hood where a carburetor shutoff may be in the fire and a common source of leaks which you will need to turn off the gas to fix will be the line from the tank to the carb.

04-09-2016, 10:19 PM	#6
redmodelt Senior Member Join Date: May 2010 Location: Portland OR Posts: 6,344	Re: Dripping gas Sponsored Links (Register now to hide all advertisements) My shut off is at the tank in the fuel line. I can reach it from under the car or just lift the floor board. My tank shut off ceased to function a long time ago.