Fuel tank mounting orientation

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by skallagrime, Jan 17, 2022.

  1. skallagrime

    skallagrime Road Train Member

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    Which goes straight up? See pic attached.

    Fuel pull/return/sender

    Vent cap

    Or 50% between those?

    Screenshot_20220117-154437_Gallery.jpg
     
    dennisrosemond Thanks this.
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  3. Goodysnap

    Goodysnap Road Train Member

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    I would put the fuel draw and return at center top.
     
  4. skallagrime

    skallagrime Road Train Member

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    Appreciate it, had old tanks oriented for the vent, wonder if thats what caused em to always read 3/4 full at max fill

    Any advice on how long to cut the fill/return necks? Its a 24.5 tank, they gave me 28 inch tubes
     
  5. Goodysnap

    Goodysnap Road Train Member

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    Could be.....if the float has a metal arm you can tweek the float to adjust the gauge to full/empty to dial in the accuracy.
     
  6. skallagrime

    skallagrime Road Train Member

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    Was this style, no arm, which i cant find for a 24.5 tank, so maybe its actually a 22inch... eh, inaccurate fuel gauge wont kill me (and personally i dont like the arm style sending units)

    Screenshot_20220117-191540_Chrome.jpg
     
    Rideandrepair Thanks this.
  7. lester

    lester Road Train Member

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    Personally I would set it up so it reads empty long before it is empty. Put the draw tube as close to the bottom as possible.
     
  8. AModelCat

    AModelCat Road Train Member

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    I'd put the draw tube 1/2" or so off the bottom, just to keep it from drawing in any water or sediment that may have settled out in the bottom.
     
  9. skallagrime

    skallagrime Road Train Member

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    Any thoughts on adding a screen or just leave it a bare tube?
     
    Rideandrepair Thanks this.
  10. AModelCat

    AModelCat Road Train Member

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    I'd just leave it bare. The filters will pick up the bad stuff and filters are easier to change vs removing the tube.
     
  11. skallagrime

    skallagrime Road Train Member

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    Ty

    Just gonna ride this question alongside since enough people that know stuff are already here :p

    In pic, 2/0 cable goes to one each of the start batteries

    Theres a few knicks in both positive wires due to terrible placement, better to just wrap those parts with tube and replace with 2/0 or use the new 1/0 i have on hand?

    Runs are about 6'

    (Also alternator hot wire is relatively stiff from vibration/heat and only 1/0, when replacing that i assume that deffinitely should be replaced with a 2/0 since its almost 15 feet?)

    20220118_200233.jpg
     
    Goodysnap Thanks this.
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