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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 615 (Engine Mechanical) >> 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 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install seal ring to fuel injector using the following procedure:
    CAUTION:
    • Handle seal ring with bare hands. Do not wear gloves.
    • Do not apply engine oil to seal ring.
    • Do not clean seal ring with solvent.
    • Do not reuse seal ring
    1. Install Tool (A) onto fuel injector (1).
      GNSJSBIA0347Z-347Courtesy of NISSAN NORTH AMERICA, INC.

      Tool number (A)

      : KV10119720 (J-50364)
    2. Set seal ring (1) into Tool (A).
      GNSJSBIA0348Z-348Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: Do not reuse seal ring.

      Tool number (A)

      : KV10119730 (J-50364)
    3. Using Tool, install seal ring (1) onto fuel injector as shown, above.
      GNSJSBIA0350Z-350Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:
      • Be careful that seal ring does not exceed the groove portion of fuel injector.
      • Be sure to keep Tool straight while installing seal ring or seal ring may be damaged.
    4. Insert Tool (A) onto injector and rotate clockwise and counterclockwise by 90 deg. while pressing seal ring to fit it.
      GNSJPBIA5630Z-630Courtesy of NISSAN NORTH AMERICA, INC.

      Tool number (A)

      : KV10119710 (J-50364)
      CAUTION: Be careful to a direction of the tool.
      NOTE: This operation is for compressing the seal ring to eliminate stretching of seal ring caused by installation and for preventing sticking when inserting injector into cylinder head.

      (B)

      : Chamfering

      SYMBOL

      : Injector side
  2. Install O-ring and backup ring to fuel injector.
    CAUTION:
    • Do not reuse O-ring and backup ring.
    • Handle O-ring with bare hands. Do not wear gloves.
    • Lubricate O-ring with new non-silicone engine oil.
    • Do not allow engine oil to enter fuel passage ways.
    • Do not clean O-ring with solvent.
    • Check that O-ring and its mating part are free of foreign material.
    • When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it immediately into fuel tube.
    • Insert new O-ring straight into fuel rail. Do not decenter or twist it.
    • Always install the back up ring (1) in the right direction as shown, below.
      GNSJPBIA3864Z-864Courtesy of NISSAN NORTH AMERICA, INC.
  3. Install fuel injector (1) to fuel rail (2) using the following steps:
    GNSJSBIA0352Z-352Courtesy of NISSAN NORTH AMERICA, INC.
    1. Install fuel injector holder (5) to fuel injector.
      CAUTION:
      • Do not reuse injector holder.
      • Be careful to keep fuel injector holder from interfering with O-ring. If interference occurs, replace O-ring.
    2. Insert fuel injector into fuel rail with fuel injector holder attached.
      • Insert it while matching it to the axial center.
      • Insert so that protrusion (A) of fuel injector is aligned to cutout (B).
    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 rail are aligned with cutouts of clips after installation.

      (3)

      : O-ring (green)

      (4)

      : Backup ring
  4. Install fuel rail and fuel injector assembly to cylinder head.
    • Tighten bolts and nuts in two steps in the sequence shown, below.
      Fig 1: Fuel Rail And Fuel Injector Assembly Bolt Tightening Sequence
      GNSALBIA3214Z-214Courtesy of NISSAN NORTH AMERICA, INC.

      1st step

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

      2nd step

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

      SYMBOL

      : Engine front
  5. Install fuel rail pressure sensor using the following procedure (if necessary):
    CAUTION:
    • Do not use a fuel pressure sensor that has been dropped.
    • Do not reuse fuel rail pressure sensor.
    1. Apply engine oil to the entire perimeter of the fuel pressure sensor threads.
      CAUTION: Check that fuel rail and fuel pressure sensor threads have no damage, foreign matter, or stains.
    2. Hand tighten fuel rail pressure sensor.
    3. Tighten fuel pressure sensor to the specified torque.

      Fuel rail pressure sensor

      : 10 N.m (1.0 kg-m, 7 ft-lb)
    4. Tighten fuel rail pressure sensor to the specified angle using Tool.
      CAUTION: Do not exceed 60 N.m (6.1 kg-m, 44 ft-lb) during final torquing of fuel rail pressure.

      Angle

      : 35 deg. +5 deg. /-0 deg.

      Tool number

      : KV10112100 (BT-8653-A)
  6. Install fuel feed tube using the following procedure:
    CAUTION:
    • Do not reuse fuel feed tube.
    • Observe the tightening order and the tightening torque.
    1. Apply clean engine oil to the inside of flare nut and seating surfaces.
    2. Install fuel feed tube and fuel feed tube bracket and hand tighten in the sequence shown, below.
      Fig 2: Fuel Feed Tube And Fuel Feed Tube Bracket Bolt Tightening Sequence
      GNSAWBIA0291Z-291Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: When temporarily tightening flare nut, place pipe in the center of the nut inner diameter.
      NOTE: Should be no gap between fuel feed tube, fuel feed tube bracket and rear timing chain case.
    3. Temporarily tighten fuel feed tube flare nuts to the specified torque in the sequence shown, above.

      Flare nut

      : 15 N.m (1.5 kg-m, 11 ft-lb)
    4. Tighten fuel feed tube nuts to the specified torque in the sequence shown, above.
      NOTE: Repeat step twice.

      Flare nut

      : 36.0 N.m (3.7 kg-m, 27 ft-lb)
    5. Tighten fuel feed tube bracket to the specified torque in the sequence shown, above.

      Bolt

      : 13.5 N.m (1.4 kg-m, 10 ft-lb)
  7. Installation of the remaining components is in the reverse order of removal.
    CAUTION: After checking for fuel leaks, maintain ten minutes of idling to bleed the fuel line.
    • Tighten high pressure fuel pump cover bolts to the specified torque in the sequence shown, below.
      Fig 3: High Pressure Fuel Pump Cover Bolt Tightening Sequence
      GNSALBIA3223Z-223Courtesy of NISSAN NORTH AMERICA, INC.

      High pressure fuel pump cover bolts

      : 11.0 N.m (1.1 kg-m, 8 ft-lb)

      SYMBOL

      : Engine front
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