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Removing fuel pump on N14

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Feb 2, 2021.

Page 3 of 4
  1. Feb 4, 2021 #21
    SmallPackage

    SmallPackage Road Train Member

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    Correct but just the o-rings normally are part of the full kits.
     
    SmallPackage, Feb 4, 2021
    SmallPackage, Feb 4, 2021
    #21
    mile marker 27 Thanks this.
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  3. Feb 5, 2021 #22
    SmokinCAT

    SmokinCAT Road Train Member

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    I would not remove the fuel pump to get to the damper, you can unbolt the filter housing and damper from the gear pump.
    upload_2021-2-5_10-25-0.png
    You need parts 3, 8, 10, 13, 12, and 9 to service that damper.

    upload_2021-2-5_10-26-42.png
     
    SmokinCAT, Feb 5, 2021
    SmokinCAT, Feb 5, 2021
    #22
    mile marker 27 Thanks this.
  4. Feb 5, 2021 #23
    mile marker 27

    mile marker 27 Road Train Member

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    My filter housing isn’t attached to the pump and #15 bolt(I believe there’s another bolt below it as well) doesn’t seem to be accessed with the pump attached.
     
    mile marker 27, Feb 5, 2021
    mile marker 27, Feb 5, 2021
    #23
  5. Feb 5, 2021 #24
    mile marker 27

    mile marker 27 Road Train Member

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    BA9E079D-29EE-4B6A-80AA-699E4CF0792F.jpeg Here’s a pic of the backside of the dampener.
     
    mile marker 27, Feb 5, 2021
    mile marker 27, Feb 5, 2021
    #24
  7. Feb 5, 2021 #25
    SmokinCAT

    SmokinCAT Road Train Member

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    You must have an older N14, if you remove those two bolts right beside the fitting the damper will unbolt from the gear pump
     
    SmokinCAT, Feb 5, 2021
    SmokinCAT, Feb 5, 2021
    #25
    mile marker 27 Thanks this.
  8. Feb 8, 2021 #26
    mile marker 27

    mile marker 27 Road Train Member

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    B0255326-405F-47DF-9F3C-4C3E332F45C1.jpeg
    Ok, I got the damper but I don’t have the O-ring or seal that goes between it and the pump. I guess I need a part number for it as well.
     
    mile marker 27, Feb 8, 2021
    mile marker 27, Feb 8, 2021
    #26
  9. Feb 8, 2021 #27
    SmokinCAT

    SmokinCAT Road Train Member

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    it is number 3 in that parts listing I gave you.
    It is very specific too, it is a rectangular ring seal and not just an o-ring.
     
    SmokinCAT, Feb 8, 2021
    SmokinCAT, Feb 8, 2021
    #27
    tommymonza and mile marker 27 Thank this.
  10. Feb 9, 2021 #28
    mile marker 27

    mile marker 27 Road Train Member

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    I’m assuming, that since my pump doesn’t have the filter housing attached, #8(also rectangular ring seal) it either doesn’t use or I won’t need?
     
    mile marker 27, Feb 9, 2021
    mile marker 27, Feb 9, 2021
    #28
  11. Feb 9, 2021 #29
    SmokinCAT

    SmokinCAT Road Train Member

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    No you should not need that.
     
    SmokinCAT, Feb 9, 2021
    SmokinCAT, Feb 9, 2021
    #29
    mile marker 27 Thanks this.
  12. Feb 9, 2021 #30
    uncleal13

    uncleal13 Road Train Member

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    Yes, I had one of those fail right when I crested a mountain grade. When we removed the pump the coupler fell out onto the ground.
     
    uncleal13, Feb 9, 2021
    uncleal13, Feb 9, 2021
    #30
    tommymonza Thanks this.
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