6 port selector, which line goes where?

[mtnmankev]

I need to replace the fuel selector solenoid thingy because it's missing.
It has the factory six pin connector just hanging there.
The fuel pump on the engine has the return line, so I will need the six port version.
If correct, I need a fuel from tank to solenoid X2
And return from solenoid to tank X2
Return line from fuel pump
Fuel supply from solenoid to pump.
My problem is, I am overwhelmed not knowing which fitting on the solenoid goes where.
I'm sure I can figure out the lines on the truck.
The PO bypassed the fuel switch setup and some lines are cut back by the tanks, so there won't be any color codes to follow.
Does anybody have a picture of the solenoid showing which line goes where ?

 

[Boone83K10]

If you look at the lines at the sending unit, from factory the return lines had red hose clamps, or at least mine did. The smallest hose is the vapor line, it leads to a T that meets with the other tank vapor line, then runs up to the vapor canister. That leaves the other lines as supply lines.

 

[Boone83K10]

3/8 supply 5/16 return 1/4 vent..line sizes

 

[mtnmankev]

Thanks, I will crawl back under it again tomorrow and do some more looking.

 

[chengny]

Here are some dwgs of the standard Pollak 6-port fuel tank selector valve. They show connections, direction of flow, etc. They all say basically the same thing:

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[1984K10]

I took these pictures while I was changing my selector out. I haven't finished because I need a smaller hose for one of the lines because it leaks even with a clamp. You should be able to see which hoses go where though.

 

[mtnmankev]

The lines on my truck don't look anywhere close to that, but I do appreciate the pic and info.
I am going to need to spend some time crawling around under it to find what has been changed and where.
Meanwhile, the saddle tank has 20 gallons of gas in it that won't be used for a while.
I wish we would get back to the days of the gas wars and 14.1 cents a gallon gas, full service, and a free glass or other goodie with fillup.
Damn, I'm getting old .........

 

[Boone83K10]

Those pics should be inverted. The bottom two lines go toward the engine. Top right two lines are passenger tank, top left two are driver tank, T line is vapor with the line disappearing into bottom of pic heading toward engine where the vapor canister is.

If that makes any sense, he is laying on his back with his feet toward the engine.

 

[1984K10]

Those pics should be inverted. The bottom two lines go toward the engine. Top right two lines are passenger tank, top left two are driver tank, T line is vapor with the line disappearing into bottom of pic heading toward engine where the vapor canister is.

If that makes any sense, he is laying on his back with his feet toward the engine.

Yeah I was actually laying with my feet out of the side but for some reason the computer switched the orientation as if I had my feet towards the engine

 

[Chuck]

I put my gas tank in the box for bush reasons. Any one know where the wires for fuel gage are. Every square I have ever bought and ran was propane. I just switched to diesel and now have a tank with no fuel gage hooked up. I was thinking it has to be in the selector wiring??


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