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12-29-2013, 12:00 PM
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#1 |
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Registered User
Join Date: Jan 2013
Location: snellville, Ga.
Posts: 12
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dual tank lines
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 ?
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12-29-2013, 11:15 PM
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#2 |
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Registered User
Join Date: Nov 2009
Location: Haines City FL
Posts: 461
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Re: dual tank lines
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 
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12-30-2013, 05:47 PM
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#3 |
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Registered User
Join Date: Jan 2013
Location: east troy, WI
Posts: 341
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Re: dual tank lines
Here's pictures of when I redid mine. My truck is EfI, but these might help you none the less.
  
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12-30-2013, 05:55 PM
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#4 |
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Registered User
Join Date: Jan 2013
Location: east troy, WI
Posts: 341
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Re: dual tank lines
And these were sent to me by a member when I was asking for questions about re-doing my lines.
   
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