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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 468 (Engine Cooling System (4.0L)) >> Removal And Installation >> Water Pump >> 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 new O-rings to water pump (1).
    G08682168Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse O-rings.
    1. Apply engine oil to the O-rings (2, 3) as shown, above.
    2. Locate the O-ring (2) with white paint mark (A) to engine front side.
  2. Hold timing chain to the side (SYMBOL ) and install the water pump (SYMBOL ).
    G04160021Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Install water pump without causing sprocket to contact timing chain.
    • It may be necessary to adjust the timing chain until it loosens enough to install the water pump.
    • Install water pump straight in while preventing vane from contacting the engine block and timing chain case.
    • Do not damage the O-rings when installing the water pump.
    • Check that timing chain and water pump sprocket are engaged.
    • Tighten water pump bolts alternately and evenly to specification.
  3. Remove dust and foreign material completely from installation area of timing chain tensioner (primary) and rear timing chain case.
  4. Turn crankshaft pulley approximately 20 deg. clockwise so that timing chain on the timing chain tensioner (primary) side is loose.
    G04160015Courtesy of NISSAN NORTH AMERICA, INC.
  5. Install timing chain tensioner (primary) with its stopper pin inserted.
    CAUTION: Be careful not to drop bolts inside timing chain case.
  6. Remove stopper pin.
    G04146984Courtesy of NISSAN NORTH AMERICA, INC.
    • Make sure again that timing chain and water pump sprocket are engaged.
  7. Install chain tensioner cover and water pump cover.
    1. Before installing, remove all traces of old liquid gasket from mating surface of water pump cover and chain tensioner cover using scraper. Also remove traces of old liquid gasket from the mating surface of front timing chain case.
      G04073567Courtesy of NISSAN NORTH AMERICA, INC.
    2. Apply a continuous bead of liquid gasket to mating surface of chain tensioner and water pump cover using suitable tool.
      G04073568Courtesy of NISSAN NORTH AMERICA, INC.

      Use Genuine RTV Silicone Sealant or equivalent. Refer to Recommended Chemical Products and Sealants .

      CAUTION: Attaching should be done within 5 minutes after coating.
    3. Tighten bolts to specified torque. Refer to Exploded View .
  8. Install water drain plug (front) (1) on water pump side of cylinder block.
    G08161852Courtesy of NISSAN NORTH AMERICA, INC.

    Water drain plug (front)

    : 9.8 N.m (1.0 kg-m, 87 in-lb)
  9. Installation of the remaining components is in the reverse order of removal.
    • After installation refill engine coolant and check for leaks. Refer to Changing Engine Coolant  and System Inspection .
      CAUTION: Do not spill coolant in the engine compartment. Use a shop cloth to absorb coolant.
    • After starting engine, let idle for three minutes, then rev engine up to 3, 000 RPM under no load to purge air from the high-pressure chamber of the chain tensioner. The engine may produce a rattling noise. This indicates that air still remains in the chamber and is not a matter of concern.
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