dual tank lines

[oldgreygoat]

I got a 86 single cab dually this week. Its an old farm truck, and pretty well ragged out, but its fixable. the p o has taken the fuel lines off the tanks, and installed a gas line from the left tank to a electric fuel pump, bypassing the fuel pump on the engine. the fuel lines that go to the switchover valve mounted on the frame have been taken off. I want to put this all back the way it came from the factory. Does anyone have a diagram of where the lines go from the tanks to the valve, or pictures of this setup. I looked in a 78 service repair manual, but it doesn't show anything. also, is there a way I can check the valve to see if its working correctly ?

[pontgta]

You will need 3 lines , 5/16,3/8,1/4. you can make them yourself or find a parts truck. All the lines be going to the valve except. The vent line is normally connected near the valve with a T. Here is a good Thread and pic..



keep in mind there is normally only one fuel filter(after valve), and not how the pic is showing.


http://67-72chevytrucks.com/vboard/s...d.php?t=512849

[BONUSCAB]

Here's pictures of when I redid mine. My truck is EfI, but these might help you none the less.

[BONUSCAB]

And these were sent to me by a member when I was asking for questions about re-doing my lines.