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Gas Tank Line Identification

Discussion in 'The Garage' started by Art'74, Mar 24, 2007.

  1. Art'74

    Art'74 1/2 ton status

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    Hey all,

    I am starting to run fuel lines on my project and am stumped by 4 lines coming out of the gas tank.

    Please help i.d. these:

    Blazer Frame 020.jpg

    From left to right, I think I know:

    Fuelling vent, ????, main line, return line.

    It's the seocnd one I am unsure of unless I have them all wrong. Either way, help me out please.

    Thanks. Art

    Blazer Frame 020.jpg
     
  2. thedrip

    thedrip 1/2 ton status

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    IIRC: filling vent, return, main, vent to charcoal... Been a while though
     
  3. Art'74

    Art'74 1/2 ton status

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    Yeah that must be it! The old elusive charcoal cansiter. Thanks a lot. I don't think I will need that with my '99 454 though. Looks like plug time.

    Art
     
  4. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Ok kind of a hijack here, but

    My fuel sending unit has 3 lines coming out of it, Each one smaller than the other line. 3/8, 5/16, 1/4. All 3 lines run to the fuel pump. I can see the biggest as a the main feed and then one of the smaller ones being a return but what is the last line for? I have no charcoal canister and my engine is carbed.
     

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