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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 >> Front Timing Chain Case >> 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. Hammer dowel pins (right and left) into front timing chain case up to a point close to taper in order to shorten protrusion length.
    G04079874Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE: Be sure to place the dowel pins in original hole locations in the front timing chain case.
  2. Install new front oil seal on the front timing chain case.
    CAUTION: Do not reuse front oil seal.
    • Apply new engine oil to both oil seal lip and dust seal lip.
    • Install it so that each seal lip is oriented as shown.
      G00529940Courtesy of NISSAN NORTH AMERICA, INC.
    • Press-fit oil seal until it becomes flush with front timing chain case end face using suitable drift [outer diameter: 60 mm (2.36 in)].
      G04146624Courtesy of NISSAN NORTH AMERICA, INC.
    • Make sure the garter spring is in position and seal lip is not inverted.
    CAUTION:
    • Be careful not to damage front timing chain case and crankshaft.
    • Press-fit straight and avoid causing burrs or tilting oil seal.
  3. Install water pump cover and chain tensioner cover to front timing chain case (if removed).
    • Apply a continuous bead of liquid gasket using a suitable tool to front timing chain case as shown.
      G04146625Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:
      • Remove water, oil, dust, dirt, or other foreign material on all sealing surfaces prior to installation.
      • The components must be installed within 5 minutes of the liquid gasket application. Then allow 30 minutes for the liquid gasket to set before operating the engine.
      • Use Genuine RTV Silicone Sealant or equivalent. Refer to Recommended Chemical Products and Sealants .
  4. Install idler pulley (if removed).
  5. Install front timing chain case as follows:
    1. Apply a continuous bead of liquid gasket using a suitable tool to front timing chain case back side as shown.
      G04146626Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:
      • Remove water, oil, dust, dirt, or other foreign material on all sealing surfaces prior to installation.
      • The components must be installed within 5 minutes of the liquid gasket application. Then allow 30 minutes for the liquid gasket to set before operating the engine.
      • Use Genuine RTV Silicone Sealant or equivalent. Refer to Recommended Chemical Products and Sealants .
    2. Install new O-rings on rear timing chain case.
      G04072925Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: Do not reuse O-rings.
    3. Assemble front timing chain case as follows:
      1. Fit lower end of front timing chain case tightly onto top face of oil pan (upper). From the fitting point, make entire front timing chain case contact rear timing chain case completely.
        G04072939Courtesy of NISSAN NORTH AMERICA, INC.
      2. Since front timing chain case is offset for difference of bolt holes, tighten bolts temporarily while holding front timing chain case from front and top as shown.
        G04146629Courtesy of NISSAN NORTH AMERICA, INC.
      3. Same as the previous step, insert dowel pin while holding front timing chain case from front and top completely.
    4. Tighten bolts to the specified torque in numerical order as shown.
      Fig 1: Front Timing Chain Case Bolt Tightening Sequence
      G04146615Courtesy of NISSAN NORTH AMERICA, INC.
    5. After all bolts are tightened, retighten them to the specified torque in numerical order as shown.
      • There are two types of bolts.

        Bolt position

        Bolt diameter

        1 - 5

        : 10 mm (0.39 in)

        6 - 25

        : 6 mm (0.24 in)

        Bolt position

        Tightening specification

        1 - 5

        : 55.0 N.m (5.6 kg-m, 41 ft-lb)

        6 - 25

        : 12.7 N.m (1.3 kg-m, 9 ft-lb)

  6. Install two bolts in front of oil pan (upper) in numerical order as shown.
    G04146614Courtesy of NISSAN NORTH AMERICA, INC.

    Front oil pan bolt

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

  7. Install right and left intake valve timing control covers as follows:
    1. Install new seal rings in shaft grooves.
    2. Apply a continuous bead of liquid gasket using a suitable tool to intake valve timing control covers as shown.
      G04072943Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:
      • Remove water, oil, dust, dirt, or other foreign material on all sealing surfaces prior to installation.
      • The components must be installed within 5 minutes of the liquid gasket application. Then allow 30 minutes for the liquid gasket to set before operating the engine.
      • Use Genuine RTV Silicone Sealant or equivalent. Refer to Recommended Chemical Products and Sealants .
      • Do not reuse seal ring.
    3. Install new collared O-rings in front timing chain case oil hole (left and right sides).
      G04072916Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: Do not reuse O-rings.
    4. Being careful not to move seal ring from the installation groove, align dowel pins on front timing chain case with the holes to install intake valve timing control covers.
    5. Tighten bolts in numerical order as shown.
      Fig 2: Intake Valve Timing Control Cover Bolt Tightening Sequence
      G04072945Courtesy of NISSAN NORTH AMERICA, INC.
  8. Install crankshaft pulley as follows:
    1. Install crankshaft pulley, taking care not to damage front oil seal.
      • When press-fitting crankshaft pulley with plastic hammer, tap on its center portion (not circumference).
    2. Tighten crankshaft pulley bolt in two steps.

      Step 1

      : 44.1 N.m (4.5 kg-m, 33 ft-lb)

      Step 2

      : 84 deg. - 90 deg. degrees clockwise

    3. Remove Ring Gear Stopper Tool.

      Tool number

      : -- (J-48761)

  9. Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns smoothly.
  10. Installation of the remaining components is in the reverse order of removal.