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My rear mounted fuel tank

Discussion in 'Builds and Fabricators Forum' started by 45es, Jan 26, 2009.

  1. Jan 26, 2009
    45es

    45es Active Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Naches, WA
    Joined:
    Mar 31, 2007
    Messages:
    1,103
    When I started my flatfender rebuild I needed (wanted) to relocate the fuel to a location behind the rear axle. I wanted a tank that would fit the location, have about 15 gallons of capacity, a reliable sending unit and because I have a fuel injected V-6, I needed to address the fuel pump issue. Not being able to find a tank that met my needs, I decided to build the tank. After calculating approximate size I headed for the nearest PNP and found an S-10 tank that became a doner for my project. It included a fuel pump/sending unit, tank parts and even the filler neck and fuel lines.

    I removed the fuel pump/sending unit and after a thorough cleaning, cut out the tank top / expnsion chamber / fuel pump flange section. With these parts and some material I had a freind shear and break for me at his shop, I built the following tank.

    View attachment 25225
    Materials laid out before construction

    View attachment 25226
    I duplicated the S-10 tank baffle after I desided where I wanted the pump located

    View attachment 25227
    After welding and pressure testing

    View attachment 25228
    Painted and mounted

    View attachment 25229
    Clearance to rear axle.

    Ed
     
  2. Jan 26, 2009
    neptco19

    neptco19 That guy....

    Athens, GA
    Joined:
    Sep 26, 2003
    Messages:
    1,381
    Looks good :beer: How low does it hang?
     
  3. Jan 26, 2009
    45es

    45es Active Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Naches, WA
    Joined:
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    The bottom of the tank is about an inch higher that the lowest point of the rear shackles.

    Ed
     
  4. Jan 27, 2009
    rixcj

    rixcj Member

    Rhode Island
    Joined:
    Nov 12, 2006
    Messages:
    351
    Very nice job!
     
  5. Jan 27, 2009
    bkap

    bkap Gone, but not long gone.

    Tucson, AZ
    Joined:
    Sep 9, 2006
    Messages:
    784
    Nice job. Just out of curiosity, what thickness sheet metal did you use and to what pressure was the tank tested?
     
  6. Jan 27, 2009
    45es

    45es Active Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Naches, WA
    Joined:
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    I used 12 ga. material to build the tank. That's quite a bit heavier than a factory tank but it is on a Jeep and I did not build a skid plate. The tank was not designed as a pressure vessel so great care must be used when testing the welds. I tested the tank to 2 psi.

    Ed
     
  7. Jan 28, 2009
    brandon533b

    brandon533b Member since 2007

    Yakima,WA
    Joined:
    Mar 2, 2007
    Messages:
    220
    i was reading over this thread and thought thats very simular to what id like to do. then i noticed your in naches. we may have to meet up, and swap ideas(or just let me steal yours!!). you got more pics of your 45?
     
  8. Jan 28, 2009
    45es

    45es Active Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Naches, WA
    Joined:
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    Not really, did take any before the teardown. The jeep's in pieces right now although I am about to put the body back on the frame.

    If you are in or around Cliffdale stop by. I live 3 miles to the east.

    Ed
     
  9. Jan 28, 2009
    bkap

    bkap Gone, but not long gone.

    Tucson, AZ
    Joined:
    Sep 9, 2006
    Messages:
    784
    Thanks, Ed. I've been thinking about upgrading to a rear tank by using a later model CJ tank. Making my own is certainly another approach to consider. I'll have to see what gauge sheet metal my brake can bend. :)
     
  10. Jan 28, 2009
    brandon533b

    brandon533b Member since 2007

    Yakima,WA
    Joined:
    Mar 2, 2007
    Messages:
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    sounds good, mabey pm me with your address/number and we could meet up.
     
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