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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Mechanical (Pr25DD) (2 Of 2)) >> Removal And Installation >> High Pressure Fuel Pump And Fuel Hose >> HIGH PRESSURE FUEL PUMP AND FUEL HOSE : Removal & Installation >> PR25DD engine >> Installation

PR25DD engine: Installation

WARNING: This page is about a different variant/trim than selected.
CAUTION: Because there is a risk of part damage caused by abnormally generated pressure or uneven weight, be sure to observe the installation procedure.
  1. Install the high pressure fuel pump using the following procedure:
    1. Rotate the crankshaft pulley (1) clockwise, and align the crankshaft pulley TDC stamp line (no color) (B) with the timing indicator (A).
      G04811647Courtesy of NISSAN NORTH AMERICA, INC.

      (C)

      : Engraved line (white)
    2. Check that the flat surface from the high pressure fuel pump mating surface (SYMBOL ) is parallel to the high pressure fuel pump drive cam surface (when the cam is at the lowest position).
      GNSJPBIA4379Z-379Courtesy of NISSAN NORTH AMERICA, INC.
      NOTE: When the piston is at TDC, one of the flat surfaces of the high pressure fuel pump drive cam (SYMBOL ) is parallel to the high pressure fuel pump installation surface (when the cam is at the lowest position).
      GNSJPBIA4380Z-380Courtesy of NISSAN NORTH AMERICA, INC.

      (1)

      : Camshaft (EXH)
    3. Install a new O-ring onto the high pressure fuel pump.
      CAUTION:
      • Do not reuse O-ring.
      • Handle O-ring with bare hands.
      • Lubricate O-ring with clean engine oil.
      • Do not clean O-ring using solvent.
      • Check that the O-ring and its mating part are free of foreign material.
      • When installing O-ring, do not scratch it with tool or fingernails. Do not twist or stretch the O-ring.
      • Insert O-ring straight into the high pressure fuel pump. Do not decenter or twist it.
    4. Lubricate high pressure fuel pump lifter and high pressure fuel pump lifter bore with clean engine oil.
    5. Reinstall the high pressure fuel pump lifter.
      GNSAWBIA3210Z-210Courtesy of NISSAN NORTH AMERICA, INC.
      NOTE: When installing high pressure fuel pump lifter, note the orientation of protrusion (B) and cutout (A) in camshaft bracket, they should be aligned.
    6. Apply engine oil to the O-ring mating surface on the camshaft bracket and to the O-ring.
    7. Hand tighten the bolts (A) and then tighten the bolts (A) by alternating sides one rotation at a time until the high pressure fuel pump flange (1) contacts the camshaft bracket.
      GNSALBIA0519Z-519Courtesy of NISSAN NORTH AMERICA, INC.
    8. Tighten the bolts (A) to the specified torque.

      High pressure fuel pump bolts

      : 10.0 N.m (1.0 kg-m, 89 in-lb)
  2. Install the fuel feed hose using the following procedure:
    1. Check the fuel tube and quick connector for damage or foreign material.
    2. Check that the axis is lined up when inserting the quick connector into the fuel tube.
    3. Insert the retainer until a "click" sound is heard, and check that the retainer is securely installed. Pull the quick connector by hand and check that it is locked.
      GNSJPBIA4381Z-381Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: If the retainer cannot be inserted smoothly, the quick connector may not be connected correctly. Remove the quick connector and then check the connection of quick connector again.

      (A)

      : Engaged condition

      (B)

      : Not engaged condition
    4. Secure fuel feed hose (2) to clamp (1).
      GNSALBIA0518Z-518Courtesy of NISSAN NORTH AMERICA, INC.

      (A)

      : Quick connector
  3. Install the high pressure fuel tube using the following procedure:
    CAUTION:
    • Do not reuse the high pressure fuel tube.
    • If scratches or damage on the end of the high pressure fuel tube are present, do not use it.
    • Always tighten in the correct order to the specified tightening torque.
    • Check that there is no foreign material on the high pressure fuel tube flare nipple and flare nuts.
    1. Hand tighten until the high pressure fuel tube (1) flare nuts (A) and (C) contact the seat.
      GNSALBIA0520Z-520Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: When hand tightening the flare nuts, insert them so that they are aligned with the center of the pipe.
    2. Hand tighten bolt (B).
    3. Tighten flare nut (A) to the specified torque.

      Flare nut

      : 23.0 N.m (2.3 kg-m, 17 ft-lb)
    4. Tighten flare nut (C) to the specified torque.

      Flare nut

      : 23.0 N.m (2.3 kg-m, 17 ft-lb)
    5. Again tighten flare nuts to the specified torque in the order of (A) and (C).
      CAUTION: Before tightening, check that the suitable tool is attached at a 90 deg. angle to the flare nut when working.

      Flare nuts

      : 23.0 N.m (2.3 kg-m, 17 ft-lb)
    6. Tighten bolt (B) to the specified torque.

      Bolt

      : 25.0 N.m (2.6 kg-m, 18 ft-lb)
  4. Installation of the remaining components is in the reverse order of removal.
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