Author Topic: 3 port selector valve  (Read 4762 times)

Offline 1979C20

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3 port selector valve
« on: March 23, 2011, 05:41:16 AM »
I think my selector valve is leaking between the 2 tanks. Because the fuel level in my passenger tank has slowly gone from a gallon to half tank on the gauge, and the passenger hose is leaking after I shut off the truck, even though it should be empty and the driver tank is selected. Is there anywhere I can get a new one, or is there a way to refurb mine?

1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline Grim 82

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Re: 3 port selector valve
« Reply #1 on: March 23, 2011, 08:58:08 AM »
Autozone has them, but they are showing the 6-port valve that doesn't look like the one you have. It may just be the wrong picture on the website. Check with your local store if you have one.

http://www.autozone.com/autozone/parts/Fuel-Tank-Selector-Valve/_/N-8ve9x
Give a man a gun, and he might rob a bank. Give a man a bank, and he might rob the world.

Offline 1979C20

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Re: 3 port selector valve
« Reply #2 on: March 23, 2011, 09:00:45 AM »
Under the Notes section on both of those it says 6 port
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline jaredts

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Re: 3 port selector valve
« Reply #3 on: March 23, 2011, 09:39:42 AM »
I think you just use that 6 port universal valve and cap the fuel return ports on it.  Anyone know if that's right?  1979c20, you have feed and vapor (vent) lines, but no return, is that correct?

Offline 1979C20

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Re: 3 port selector valve
« Reply #4 on: March 23, 2011, 11:19:54 AM »
I have, shown in the picture, An input from each tank, and output to the pump. The pump has the input from the valve and output to the carb, no return. And the tanks output and vent. The driver vent runs on the outside of the driver frame rail and vents under the master cylinder and the passenger follows the fuel line, across the front crossmember, and vents above the steering box.
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline Grim 82

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Re: 3 port selector valve
« Reply #5 on: March 23, 2011, 11:58:31 AM »
Then in theory, what jaredts suggested would work. I'm guessing the wiring for the switch would need some modification.
Give a man a gun, and he might rob a bank. Give a man a bank, and he might rob the world.

Offline 1979C20

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Re: 3 port selector valve
« Reply #6 on: March 23, 2011, 12:00:11 PM »
Technically, yes. It could work. And I think the switch and everything would work all the same. Just one wire going to it. But I'd really like to keep it OE.
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline beastie_3

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Re: 3 port selector valve
« Reply #7 on: March 23, 2011, 01:43:16 PM »
Pollak makes them, find a dealer that can get a 3 port.

Offline DnStClr

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Re: 3 port selector valve
« Reply #8 on: March 23, 2011, 04:59:08 PM »
Check with your local O Reillys parts store. They have a Borg Warner 3 Port valve for @ $30.
Don
87 Chevy Silverado

Offline 1979C20

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Re: 3 port selector valve
« Reply #9 on: March 23, 2011, 05:13:37 PM »
Oh hey, Its 40 at mine, but I didn't think to check oreillys. I had only checked autozone because its easier to view on my phone.
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline DnStClr

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Re: 3 port selector valve
« Reply #10 on: March 24, 2011, 08:21:14 AM »
Oops- you're right. $40. I'm old an half blind..
Don
87 Chevy Silverado