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M38a1 gas tank measurements

Discussion in 'Early CJ5 and CJ6 Tech' started by DanStew, Dec 30, 2010.

  1. Dec 30, 2010
    DanStew

    DanStew Incorrigible. Staff Member Sponsor

    Lexington, South...
    Joined:
    Sep 22, 2002
    Messages:
    4,216
    Does anyone have a m38a1 gas tank they could take measurements for me? I am thinknig bout making one, just need to know what original specs are so i can fit it in the correct location.

    Thanks!!
     
  2. Dec 31, 2010
    Mike S

    Mike S Sponsor Sponsor

    Cameron Park Ca.
    Joined:
    Oct 6, 2009
    Messages:
    811
    I have been having the same thoughts-------I do have a CJ tank, and was thinking of just adding a lower sump to it.

    Anybody know if the sump is the only difference??

    Should be a lot easier than making an entire tank.
     
  3. Dec 31, 2010
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    9,159
    Bigger filler neck is one difference, I doubt the fuel sender matches up either, plus has a vent line setup.
     
  4. Dec 31, 2010
    Brian P

    Brian P Member

    Clarkdale Arizona
    Joined:
    Nov 24, 2007
    Messages:
    650
    I went out and put a tape measure on the tank in my daughters A1, at the sump it is 10 3/8 inches deep with the rest of the tank being 7 1/2 inches deep. the overall length and width is the same as the tank in my 55.

    The A1 tank is taller and the A1 seat frame at the drivers door mount is a little more vertical to allow for the taller tank. The cj seat frame could easily be modified but looking at mine it would be very close and possibly not necessary.

    The A1 tank pulls fuel up through a drop tube, not out the bottom like the cj and it has a manual priming pump on top of the tank. The A1 seat frame is a little different and it looks like the seats had a solid bottom, there may be some under seat clearance issues but from looking at mine they would be minor in nature.

    The data plate on the A1 shows the tank capacity to be 17 gallons.
     
    Last edited: Dec 31, 2010
  5. Dec 31, 2010
    scott milliner

    scott milliner Master Fabricator

    Seattle Wa.
    Joined:
    Dec 17, 2002
    Messages:
    2,011
    25 3/4" X 19" X 10 1/2"
    Fits in the floor almost prefect.
     

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