The Ford Barn

Sparta · 08-04-2019, 01:51 PM

Hey guys! I’m replacing my fuel shutoff on my 31 model a. Does the gas tank have to be empty to do so? I see it threads right off, maybe just sneak a bolt onto the gas tank to stop it from pouring out?

Thanks!!

Aretino · 08-04-2019, 01:54 PM

I just drained my tank into gas can by attaching hose to firewall fitting. Eliminates gas spills on the interior.

wmws · 08-04-2019, 02:28 PM

Yes drain it completely. Even then have a pan under it to catch the little bit remaining. You do not want gas on your floor mat. Do not screw a bolt into the drain hole. Wrong thread.

Kurt in NJ · 08-04-2019, 02:30 PM

If it had a stand pipe --- pencil filter added there will be trapped gas , could be more than a gallon

WHN · 08-04-2019, 02:41 PM

I drain tank and than put an old bath towel under it before replacing valve. Enjoy.

Mulletwagon · 08-04-2019, 05:23 PM

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Expect about a cup of fuel to drain out when the valve is unthreaded. Use some teflon tape on the new valve threads.

JoeCB · 08-04-2019, 06:30 PM

Be careful with steel tools around the steel tank, no bumping or banging around... sparks and leaking gasoline- not a good thing!

Joe B

Jeff/Illinois · 08-04-2019, 09:41 PM

Quote:

Originally Posted by Mulletwagon

........................ Use some teflon tape on the new valve threads.

May want to re-think that, teflon tape isn't good around gasoline applications.

I'd use a bit of Permatex non-hardening sealer made for gasoline fittings

daren007 · 08-04-2019, 10:07 PM

You don't have to drain it...But I would. There are products specifically made for sealing fuel, "Fuel Lube" is one.

Bill G · 08-04-2019, 10:40 PM

I drained mine by removing the fitting from the carb and extending it with a rubber hose to drain into a 5-gallon gas can. That will save you a lot of grief of you don't drain it. as stated by others, you will still get some when you actually take the valve off, so I guess I am just saying what everyone else has.

katy · 08-05-2019, 09:34 AM

After you drain as much gas as you can get out of it, block up the RH side of the car about 4" so any remaining gas will shift away from the shutoff valve, before removing the valve.

Forddan · 08-05-2019, 04:54 PM

Quote:

Originally Posted by Jeff/Illinois

May want to re-think that, teflon tape isn't good around gasoline applications.

I'd use a bit of Permatex non-hardening sealer made for gasoline fittings

I used yellow gasoline resistant teflon tape. So far so good.

The standard white teflon tape will melt in a few hours

1931 flamingo · 08-05-2019, 05:54 PM

DISCONNECT the battery first.................................FWIW........ JMO.
Paul in CT

08-04-2019, 01:51 PM	#1
Sparta Junior Member Join Date: Jul 2019 Posts: 29	Replacing fuel shutoff valve, does tank need to be empty? Hey guys! I’m replacing my fuel shutoff on my 31 model a. Does the gas tank have to be empty to do so? I see it threads right off, maybe just sneak a bolt onto the gas tank to stop it from pouring out? Thanks!! __________________ 1931 Ford Model A Tudor Complete stock rebuild Disregarding the constabulary since 1931

08-04-2019, 01:54 PM	#2
Aretino Senior Member Join Date: Jul 2018 Location: Dallas, TX, Angola, IN Posts: 157	Re: Replacing fuel shutoff valve, does tank need to be empty? I just drained my tank into gas can by attaching hose to firewall fitting. Eliminates gas spills on the interior.

08-04-2019, 02:28 PM	#3
wmws BANNED Join Date: Feb 2013 Location: Coatesville, Pa Posts: 719	Re: Replacing fuel shutoff valve, does tank need to be empty? Yes drain it completely. Even then have a pan under it to catch the little bit remaining. You do not want gas on your floor mat. Do not screw a bolt into the drain hole. Wrong thread.

08-04-2019, 02:30 PM	#4
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,156	Re: Replacing fuel shutoff valve, does tank need to be empty? If it had a stand pipe --- pencil filter added there will be trapped gas , could be more than a gallon

08-04-2019, 02:41 PM	#5
WHN Senior Member Join Date: Mar 2017 Location: Connecticut Shoreline Posts: 1,820	Re: Replacing fuel shutoff valve, does tank need to be empty? I drain tank and than put an old bath towel under it before replacing valve. Enjoy.

08-04-2019, 05:23 PM	#6
Mulletwagon Senior Member Join Date: Jan 2019 Location: Florida Panhandle Posts: 585	Re: Replacing fuel shutoff valve, does tank need to be empty? Sponsored Links (Register now to hide all advertisements) Expect about a cup of fuel to drain out when the valve is unthreaded. Use some teflon tape on the new valve threads.

08-04-2019, 06:30 PM	#7
JoeCB Senior Member Join Date: Nov 2018 Location: Farmington MI Posts: 284	Re: Replacing fuel shutoff valve, does tank need to be empty? Be careful with steel tools around the steel tank, no bumping or banging around... sparks and leaking gasoline- not a good thing! Joe B

08-04-2019, 10:07 PM	#9
daren007 Senior Member Join Date: Apr 2015 Location: Saint Cloud Mn Posts: 745	Re: Replacing fuel shutoff valve, does tank need to be empty? You don't have to drain it...But I would. There are products specifically made for sealing fuel, "Fuel Lube" is one.

08-04-2019, 10:40 PM	#10
Bill G Senior Member Join Date: Jun 2017 Location: Walla Walla, WA Posts: 1,045	Re: Replacing fuel shutoff valve, does tank need to be empty? I drained mine by removing the fitting from the carb and extending it with a rubber hose to drain into a 5-gallon gas can. That will save you a lot of grief of you don't drain it. as stated by others, you will still get some when you actually take the valve off, so I guess I am just saying what everyone else has.

08-05-2019, 09:34 AM	#11
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,042	Re: Replacing fuel shutoff valve, does tank need to be empty? After you drain as much gas as you can get out of it, block up the RH side of the car about 4" so any remaining gas will shift away from the shutoff valve, before removing the valve. __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

08-05-2019, 05:54 PM	#13
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: Replacing fuel shutoff valve, does tank need to be empty? DISCONNECT the battery first.................................FWIW........ JMO. Paul in CT