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05-02-2021, 01:02 PM | #1 |
Junior Member
Join Date: Jul 2018
Posts: 2
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Fuel shut off valve question
I have a 31 model a and I’m not getting fuel out of the valve. At first just a few dribbles and now I can keep the valve open and nothing comes out. I’m sure it’s rust clogged. Can I remove the valve without taking the fuel tank out? Or does the tank need to be removed? It’s been running good just went to start it the other day and now this issue. Thanks for the help.
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05-02-2021, 01:19 PM | #2 |
Senior Member
Join Date: May 2016
Location: Scottsdale, Arizona
Posts: 611
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Re: Fuel shut off valve question
Good Morning...You can remove and replace the valve with the tank in the car. If you are then going to flush the tank...good idea to remove the floor boards and do the work outside. Ernie in Arizona
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05-02-2021, 01:22 PM | #3 |
Junior Member
Join Date: Jul 2018
Posts: 2
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Re: Fuel shut off valve question
Awesome thank you. It seems to just screw out so shouldn’t be an issue. Glad to see another fellow from Arizona here!
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05-02-2021, 01:29 PM | #4 |
Senior Member
Join Date: May 2010
Location: brentwood, ca
Posts: 4,234
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Re: Fuel shut off valve question
Have you put a little air back thru the outlet to loosen the plug up?
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05-02-2021, 01:43 PM | #5 |
Senior Member
Join Date: Nov 2015
Location: Roseville Ca.
Posts: 141
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Re: Fuel shut off valve question
Good idea to blow air back into tank & drain the tank, you don't need gas all over the place.
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05-02-2021, 02:40 PM | #6 |
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Join Date: Jan 2019
Location: Florida Panhandle
Posts: 585
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Re: Fuel shut off valve question
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05-02-2021, 07:50 PM | #7 |
Senior Member
Join Date: May 2010
Location: Portland, Oregon
Posts: 5,902
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Re: Fuel shut off valve question
Disconnect your battery any time there is the chance of exposing raw fuel.
__________________
Ray Horton, Portland, OR As you go through life, keep your eye on the donut, not the hole. |
05-02-2021, 09:05 PM | #8 |
Senior Member
Join Date: Jun 2010
Location: Danvers, Ma.
Posts: 712
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Re: Fuel shut off valve question
All the replies are very good ones. First, use a flashlight in the tank to see if the valve opening has something covering it. A friend with a '30 roadster had an annoying intermittent fuel supply starvation problem, he found a little silver foil cap liner from an old bottle of "something", sometimes covering up the hole to the valve! He got it out and that was the end of his fuel problem. One of the best things to come along for our "A's" is the cigarette filter for that valve.
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05-03-2021, 06:41 AM | #9 |
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Join Date: Feb 2015
Location: Georgetown, TX
Posts: 535
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Re: Fuel shut off valve question
No smoking during this procedure. Siphon all the gas out from the top first. Then get a big bucket under the valve. Remove the fuel line from the valve. Slowly remove the valve a little at a time and drain the gas that is left in the tank. It is best to have the car facing out of the garage. You don't want raw gas all over your floor. The pencil filter should come out with the valve.
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05-03-2021, 06:44 AM | #10 |
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Join Date: Apr 2012
Posts: 1,542
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Re: Fuel shut off valve question
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05-03-2021, 06:59 AM | #11 |
Senior Member
Join Date: Jan 2019
Location: Florida Panhandle
Posts: 585
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Re: Fuel shut off valve question
Back in the day we used teflon tape. It was even recommended by Holley for carb connections. Teflon tape is now considered to be gas soluble and is no longer recommended - but still used by some with no negative effect. The better solution now is to use liquid sealers, most notably from Permatex.
https://www.permatex.com/products/th.../?locale=en_us |
05-03-2021, 07:12 PM | #12 |
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Join Date: May 2010
Location: Glendale, AZ
Posts: 2,950
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Re: Fuel shut off valve question
31modelaguy
Doe you have the shutoff in the car or under the hood? Where are you located in AZ.. Joop from Glendale, AZ |
05-03-2021, 07:30 PM | #13 |
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Join Date: Sep 2019
Location: Fort Gratiot, Michigan
Posts: 2,296
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Re: Fuel shut off valve question
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05-04-2021, 03:35 AM | #14 |
Junior Member
Join Date: Jul 2020
Location: San Francisco, CA
Posts: 11
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Re: Fuel shut off valve question
Yes, it's definitely possible to remove the petcock with the tank on. When you have the issue sorted, make sure to install a filter screen on the top of the petcock prior to filling it back up. These are cheap and also very functional.
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05-04-2021, 07:41 AM | #15 |
Senior Member
Join Date: May 2010
Location: Glendale, AZ
Posts: 2,950
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Re: Fuel shut off valve question
.
31modelaguy Doe you have the shutoff in the car or under the hood? Where are you located in AZ.. |
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