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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 503 (Engine Mechanical (4.0L)) >> Removal And Installation >> Fuel Injector And Fuel Tube >> Removal and Installation >> Installation

Removal and Installation: Installation

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install fuel damper as follows:
    G04146598Courtesy of NISSAN NORTH AMERICA, INC.
    1. Install new O-ring to fuel tube as shown.
      • When handling new O-rings, refer to the following caution:
        CAUTION:
        • Handle O-ring with bare hands. Do not wear gloves.
        • Do not reuse O-ring.
        • Lubricate new O-ring with new engine oil.
        • Do not clean O-ring with solvent.
        • Make sure that O-ring and its mating part are free of foreign material.
        • When installing O-ring, do not scratch or nick it.
        • Do not twist or stretch O-ring. If O-ring was stretched while it was being attached, allow it to retract before inserting it into fuel tube.
        • Insert new O-ring straight into fuel tube. Do not angle or twist it.
    2. Install spacer to fuel damper.
    3. Insert fuel damper straight into fuel tube.
      CAUTION:
      • Insert straight, making sure that the axis is lined up.
      • Do not pressure-fit with excessive force.

        Reference value

        : 130 N.m (13.0 kg-m, 96.0 ft-lb)

      • Insert fuel damper until (B) is touching (A) of fuel tube.
    4. Tighten bolts evenly in turn.
      • After tightening bolts, make sure that there is no gap between fuel damper cap and fuel tube.
  2. Install new O-rings to fuel injector, paying attention to the following.
    CAUTION:
    • Do not reuse O-rings.
    • Upper and lower O-ring are different colors.

      Fuel tube side

      : Blue

      Nozzle side

      : Brown

    • Handle O-ring with bare hands. Do not wear gloves.
    • Lubricate O-ring with new engine oil.
    • Do not clean O-ring with solvent.
    • Make sure that O-ring and its mating part are free of foreign material.
    • When installing O-ring, do not scratch or nick it.
    • Do not twist or stretch O-ring. If O-ring was stretched while it was being attached, allow it to retract before inserting it into fuel tube.
    • Insert O-ring straight into fuel injector. Do not angle or twist it.
  3. Install fuel injector to fuel tube as follows:
    CAUTION: Upper and lower O-ring are different colors.

    (2) Fuel tube side

    : Blue

    (4) Nozzle side

    : Brown

    GNSJPBIA1959Z-959Courtesy of NISSAN NORTH AMERICA, INC.
    1. Insert clip (3) into clip groove (F) on fuel injector (5).
      • Insert clip so that protrusion (E) of fuel injector matches cutout (C) of clip.
        CAUTION:
        • Do not reuse O-rings.
        • Do not reuse clip. Replace it with new one.
        • Be careful to keep clip from interfering with O-ring. If interference occurs, replace O-ring.
    2. Insert fuel injector into fuel tube (1) with clip attached.
      • Insert it while matching it to the axial center.
      • Insert fuel injector so that protrusion (A) of fuel tube matches cutout (B) of clip.
      • Check that fuel tube flange (G) is securely fixed in flange fixing groove (D) on clip.
    3. Check that installation is complete by checking that fuel injector does not rotate or come off.
      • Check that protrusions of fuel injectors and fuel tubes are aligned with cutouts of clips after installation.
  4. Connect the fuel tube (RH) to the fuel tube (LH), and tighten bolts temporarily.
    • Tighten bolts to the specified torque after installing fuel tube and fuel injector assembly.
    CAUTION:
    • Handle O-ring with bare hands. Do not wear gloves.
    • Do not reuse O-rings.
    • Lubricate O-ring with new engine oil.
    • Do not clean O-ring with solvent.
    • Make sure that O-ring and its mating part are free of foreign material.
    • When installing O-ring, do not scratch or nick it.
    • Do not twist or stretch O-ring. If O-ring was stretched while it was being attached, allow it to retract before inserting it into fuel tube.
    • Insert new O-ring straight into fuel tube. Do not angle or twist it.
  5. Install fuel tube and fuel injector assembly to intake manifold.
    CAUTION: Do not let the tip of the injector nozzle come in contact with other parts.
    • Tighten bolts in two steps in numerical order as shown.
      Fig 1: Fuel Tube And Fuel Injector Assembly Bolts Tightenings Sequence
      G03592423Courtesy of NISSAN NORTH AMERICA, INC.

      Fuel injector tube assembly bolts

      1st step

      : 10.1 N.m (1.0 kg-m, 7 ft-lb)

      2nd step

      : 22.0 N.m (2.2 kg-m, 16 ft-lb)

  6. Tighten bolts to specification which connect fuel tube (RH) and fuel tube (LH).
  7. Connect fuel injector harness connector.
  8. Install intake manifold collector. Refer to Removal and Installation .
  9. Installation of the remaining components is in the reverse order of removal.