Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 05-09-2021, 04:47 PM   #1
rivcokid
Member
 
rivcokid's Avatar
 
Join Date: Sep 2018
Location: Riverside, CA
Posts: 94
Default Gas Shut Off Valve testing

Hi all - I had to replace the gas shut off valve due to it not shutting off and leaking gas through the carb. Anyway, the tank is totally empty now. I'm wondering if it would be safe to test my connections with 3 - 4 gallons of water in the gas tank first to make sure there are no leaks before I fill the tank with gas (at $4.30/gallon). I wouldn't leave it in for long, would drain it thoroughly and dry it before I'd revert to gas. I just don't want gas leaks in the cabin.

Thanks!
rivcokid is offline   Reply With Quote
Old 05-09-2021, 05:03 PM   #2
Redbird
Senior Member
 
Redbird's Avatar
 
Join Date: Feb 2015
Location: Georgetown, TX
Posts: 472
Default Re: Gas Shut Off Valve testing

Do not put water in the tank. You can use some pipe dope or plumbers tape to put the valve with pencil filter back in the tank. Place a plastic pale beneath the valve. Then just pour a little gas in the tank to see if it leaks. If not, then hook the gas line back up and check for leaks again after opening the valve.
Redbird is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 05-09-2021, 05:05 PM   #3
rivcokid
Member
 
rivcokid's Avatar
 
Join Date: Sep 2018
Location: Riverside, CA
Posts: 94
Default Re: Gas Shut Off Valve testing

Ok - I should have mentioned that I used the pipe dope on both fittings on the valve.
rivcokid is offline   Reply With Quote
Old 05-09-2021, 05:46 PM   #4
McMimmcs
Senior Member
 
McMimmcs's Avatar
 
Join Date: Sep 2019
Location: Michigan
Posts: 1,531
Default Re: Gas Shut Off Valve testing

A gallon of gas at 4 dollars is cheap insurance and peace of mind. Playing with water in the gas tank is asking for trouble!

Last edited by McMimmcs; 05-09-2021 at 08:50 PM.
McMimmcs is offline   Reply With Quote
Old 05-09-2021, 07:23 PM   #5
Mulletwagon
Senior Member
 
Mulletwagon's Avatar
 
Join Date: Jan 2019
Location: Florida Panhandle
Posts: 451
Default Re: Gas Shut Off Valve testing

The best way to test a valve is to disconnect the fuel line at the carb with the valve closed. Place the fuel line in an empty water bottle and let is sit overnight. Typical leakage of a worn valve would be two or three oz. over twelve hours or so. A good valve will not leak at all. The first indication of a failing valve is the scent of gas fumes in the garage. Been there.

Water is a definite no go.
Mulletwagon is offline   Reply With Quote
Old 05-09-2021, 07:31 PM   #6
Model A Ron
Senior Member
 
Model A Ron's Avatar
 
Join Date: Feb 2021
Location: Troutman, NC
Posts: 429
Default Re: Gas Shut Off Valve testing

Sponsored Links (Register now to hide all advertisements)
I would not put water in the gas tank. This is just asking for problems but that's my opinion.

Ron
Model A Ron is offline   Reply With Quote
Old 05-09-2021, 07:33 PM   #7
700rpm
Senior Member
 
700rpm's Avatar
 
Join Date: May 2010
Location: Portland, Oregon
Posts: 5,685
Default Re: Gas Shut Off Valve testing

Quote:
Originally Posted by McMimmcs View Post
A gallon of gas at 4 dollars is cheap insurance and piece of mind. Playing with water in the gas tank is asking for trouble!
This is good advice. BUT Don’t expect that once you determine there’s no leakage that you’ll never have to do anything about it again. This is not one and done. A year or two or ten down the line it will leak again. It’s just what they do.
__________________
Ray Horton, Portland, OR


As you go through life, keep your eye on the donut, not the hole.
700rpm is offline   Reply With Quote
Old 05-09-2021, 09:35 PM   #8
rivcokid
Member
 
rivcokid's Avatar
 
Join Date: Sep 2018
Location: Riverside, CA
Posts: 94
Default Re: Gas Shut Off Valve testing

@700rpm - Don't worry. I'm under no delusions that this will be the first and last time I'll do this. However, I got into trouble with the mini-storage people for the gas smell, so want to make sure (at least right now!)

@Mulletwagon - that's exactly what I did. The fuel shutoff valve didn't shut off!

Thanks everyone - I won't put water in the tank!
rivcokid is offline   Reply With Quote
Old 05-10-2021, 10:55 AM   #9
katy
Senior Member
 
katy's Avatar
 
Join Date: Jun 2015
Location: Alberta, Canada
Posts: 3,222
Default Re: Gas Shut Off Valve testing

If'n you're worried about leaks during long term storage, one could disconnect the line from the valve and put a cap on the valve.

https://www.homedepot.com/p/Everbilt...1449/207176831
__________________
Play it again Sam.
katy is offline   Reply With Quote
Old 05-10-2021, 11:39 AM   #10
JayJay
Senior Member
 
Join Date: Jan 2020
Location: SF Bay Area
Posts: 266
Default Re: Gas Shut Off Valve testing

I may be floating a bit off-topic here, but someone raised "long term" storage. For long term storage I would be more inclined to drain the tank. Run the tank down to less than 1/4 full, then park it. Remove the fitting at the carburetor, attach a length of 1/4" tubing, then open the tank valve and drain the tank into a gas can set between the front bumper brackets.

It's common practice to drain fluids when storing a vehicle for long term. Also to jack up and support under the frame so the tires don't take the weight.

But a lot depends on just what "long term" is. Over the winter I'd drain gasoline and (if you live in an area prone to freezing) water. For a few months oil is fine. Longer, I'd go the full route.

Also take the battery out and store it where it won't freeze.

Fortunately, where I live in NorCal we can drive 12 months, and don't have hard freezes where I'm concerned about water cracking a block/head.

Oh yeah, I second (third? fourth?) the recommendation - don't put water into your tank.

JayJay
__________________
JayJay
San Francisco Bay Area

------------------------
1930 Closed Cab Pickup
1930 Murray Town Sedan

Last edited by JayJay; 05-10-2021 at 11:53 AM.
JayJay is offline   Reply With Quote
Old 05-10-2021, 11:45 AM   #11
rivcokid
Member
 
rivcokid's Avatar
 
Join Date: Sep 2018
Location: Riverside, CA
Posts: 94
Default Re: Gas Shut Off Valve testing

@JayJay - thanks. This really started because I had to replace the gas shutoff valve because it was not shutting off. Therefore, the carb kept getting gas and leaking. My concern is whether I've replaced everything correctly. We'll see!
rivcokid is offline   Reply With Quote
Old 05-10-2021, 11:48 AM   #12
McMimmcs
Senior Member
 
McMimmcs's Avatar
 
Join Date: Sep 2019
Location: Michigan
Posts: 1,531
Default Re: Gas Shut Off Valve testing

Quote:
Originally Posted by katy View Post
If'n you're worried about leaks during long term storage, one could disconnect the line from the valve and put a cap on the valve.

https://www.homedepot.com/p/Everbilt...1449/207176831
Great idea for long term storage.
McMimmcs is offline   Reply With Quote
Old 05-10-2021, 12:00 PM   #13
JayJay
Senior Member
 
Join Date: Jan 2020
Location: SF Bay Area
Posts: 266
Default Re: Gas Shut Off Valve testing

There have been a couple of threads here recently about sealing the fuel tank valve pipe thread.

https://www.fordbarn.com/forum/showt...=thread+sealer

https://www.fordbarn.com/forum/showt...light=Permatex

JayJay
__________________
JayJay
San Francisco Bay Area

------------------------
1930 Closed Cab Pickup
1930 Murray Town Sedan
JayJay is offline   Reply With Quote
Old 05-10-2021, 02:14 PM   #14
Ernie Vitucci
Senior Member
 
Join Date: May 2016
Location: Scottsdale, Arizona
Posts: 492
Default Re: Gas Shut Off Valve testing

Good afternoon...Bratton's sells a modern 1/4 turn ball valve system that just bolts into your fuel line and solves the leaking problem. You put in a new regular valve and then attach the Bratton's valve which is made up of the valve and fuel line from the original valve to the fire wall. I've had one for several years and NO leaks. The Bratton's part number is 13330 for 28-29 and 13350 for 30-31. Ernie in Arizona
Ernie Vitucci is offline   Reply With Quote
Old 05-10-2021, 11:17 PM   #15
psimet
Member
 
psimet's Avatar
 
Join Date: Apr 2021
Posts: 64
Default Re: Gas Shut Off Valve testing

Quote:
Originally Posted by JayJay View Post
There have been a couple of threads here recently about sealing the fuel tank valve pipe thread.

https://www.fordbarn.com/forum/showt...=thread+sealer

https://www.fordbarn.com/forum/showt...light=Permatex

JayJay

Thanks for the links - those threads donít seem to come to a consensus thought. What I got was Teflon tape = no. Yellow tape (like for natural gas line) = maybe just donít over wrap it and end up with it in the line. Permatex = yes but many different options/products.

Seems strange there isnít a pretty universally accepted sealant for these threads in the gas shut off.


Sent from my iPhone using Tapatalk
psimet is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 04:57 PM.