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Old 04-13-2019, 02:18 PM   #1
Mulletwagon
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Default Shut Off Valve Leaking

Determined the gas smell in the garage was the result of a leaky shut off valve which allowed the carb to leak. Any good/bad source for securing a new one ? Have heard that Bratton's are the best. Any special procedures for changing it out ? Welcome input.
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Old 04-13-2019, 02:23 PM   #2
dennis lumbert
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Default Re: Shut Off Valve Leaking

I got one from Snyder’s several years ago with no issues.
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Old 04-13-2019, 03:11 PM   #3
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Default Re: Shut Off Valve Leaking

I first bought an inexpensive kit and that really didn't work well, so I bought a new valve. Whether you do a kit or a new valve, you need to drain the tank and you will get a little more gas that comes out when you take the valve out. Just be prepared with a coffee can or something to catch it in. Best to take the floor mat and floorboards out so any gas drips down onto the concrete below without messing up the floor of the car. I got my valve from Bert's. No matter who you get it from, they are not that expensive. Procedure-wise, it should be pretty intuitive, but just in case, you could follow the Les Andrews red book instructions. If you don't have that book, and you want to do *ANYTHING* on your own car, you should get that book if you don't get any other. Also, be sure to order the little pencil filter that goes on the top of the valve and sits inside the tank. It is one more precaution against having flakes from inside the tank getting through to the carburetor.
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Old 04-13-2019, 05:01 PM   #4
30 Closed Cab PU
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Default Re: Shut Off Valve Leaking

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Originally Posted by Mulletwagon View Post
Determined the gas smell in the garage was the result of a leaky shut off valve which allowed the carb to leak. Any good/bad source for securing a new one ? Have heard that Bratton's are the best. Any special procedures for changing it out ? Welcome input.
Foreign sourced Fuel shutoffs are known to leak new out of box. I went through 2 of them before I learned from the forum to get them from Brattons, USA Made, 3 year warranty. Ordered one from them - fixed.


Most of the foreign sourced shutoffs factories do not clean machining debris out of them sufficiently before assembling them. The debris scores the ball used as the valve, it leaks, and typically is not repairable. The kits you see for repairs are primarily for the original design/old stock/NOS shutoffs, and do not typically work on present day shutoffs.


If you currently do not have a Fuel filter pencil filter in your shutoff , You should install one. It inserts into the top of the shutoff and sticks up into the tank. It keeps debris/rust out of the shutoff which ruins the shutoff, again scoring the ball used as a valve. This damage is not covered under the Brattons Warranty.


This also would be a good time to clean out your tank, especially the bottom.


Been through this myself, hope you do not mind unasked for advice.

W
hen you put it back in, wrap the threads with a single layer of plumber teflon tape.


When you drain the tank, and unscrew the valve out, make sure you use plasitc and a catch tray/pan under it, a cup to a half cup of gas will come out.

Last edited by 30 Closed Cab PU; 04-13-2019 at 05:20 PM. Reason: typos
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Old 04-13-2019, 07:32 PM   #5
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Default Re: Shut Off Valve Leaking

If you use the teflon tape, you will probably want the stuff that is made for gasoline. I think that is yellow colored as opposed to regular white.
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Old 04-13-2019, 08:43 PM   #6
Mike Peters
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Default Re: Shut Off Valve Leaking

I ordered a new shut off valve from Bratton's yesterday to replace a leaky original valve. The above discussion reassured me that I made a good move for a change. Thanks guys!
Even after lapping in the original valve with valve grinding compound it still leaked.
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Old 04-13-2019, 09:02 PM   #7
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Default Re: Shut Off Valve Leaking

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I ordered a new shut off valve from Bratton's yesterday to replace a leaky original valve. The above discussion reassured me that I made a good move for a change. Thanks guys!
Even after lapping in the original valve with valve grinding compound it still leaked.

After lapping with a light compound, I do it again with White toothpaste. Ends leaks.....
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Old 04-13-2019, 09:36 PM   #8
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Default Re: Shut Off Valve Leaking

Replaced mine a few days ago with one from Smith & Jones. Easy fix and smooth on off now. I drained the tank by running most of the fuel out and emptying the sediment bowl and then draining out the rest with the fuel line to the carb. No leaks and like I said smooth on/off.
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Old 04-13-2019, 11:56 PM   #9
30 Closed Cab PU
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Default Re: Shut Off Valve Leaking

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Originally Posted by whirnot View Post
After lapping with a light compound, I do it again with White toothpaste. Ends leaks.....

If they are scored, my experience lapping does not work/fix. Tried a bunch of things, was a waste of time, so decided to replace. Even ordered an original off E-bay that the seller insisted was leak free - leaked. Tried lapping that one and still leaked. So I went through 4 valves including the original before I ordered from Brattons.
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Old 04-14-2019, 05:56 AM   #10
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Default Re: Shut Off Valve Leaking

I rebuilt my shutoff valve with no luck. So I too ordered a new one. It's operation is so smooth compared to my old one. Also no known leaks. I'd just order a new one and be done. I'm sure Bratton's or Snyder's will take care of you.

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Old 04-14-2019, 03:02 PM   #11
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Default Re: Shut Off Valve Leaking

I did the same as Garagekulture13. Snyders shutoff did the trick.
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Old 04-14-2019, 06:25 PM   #12
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Default Re: Shut Off Valve Leaking

The old ones are a 50-50 shot at best. "Fuel filter pencil filter in your shutoff ," is good advice. I have the pencil screen, and it works perfectly. Just a little drop of gas on the front floor matt will really stink more than what you are inclined to think.

Snyders is the way to go.
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