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Disassembly and Assembly: Disassembly

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.
NOTE: The following procedures explain how to disassemble the engine with the engine stand fastened to the bell housing. Some steps may be different if using a different type of engine stand.
  1. Remove engine assembly from vehicle. Refer to Removal and Installation .
  2. Remove both exhaust manifolds. Refer to Removal and Installation (Exhaust Manifold) .
  3. Remove the parts that may restrict installation of engine to engine stand.
    1. Remove the drive plate.
      G04132329Courtesy of NISSAN NORTH AMERICA, INC.
      • Holding crankshaft pulley bolts, lock crankshaft to remove drive plate bolts.
      • Loosen bolts diagonally.
        CAUTION:
        • Be careful not to damage or scratch drive plate. Especially avoid deforming and damaging the signal plate teeth (circumference position).
        • Do not disassemble drive plate.
        • Place the drive plate with signal plate surface facing other than downward.
        • Keep magnetic materials away from signal plate.
  4. Remove pilot converter using Tool as necessary.
    G04146781Courtesy of NISSAN NORTH AMERICA, INC.

    Tool number

    : ST16610001 (J-23907)
  5. Drain engine oil.
  6. Lift engine and mount to engine stand (A). Any widely used commercially available engine stand can be used.
    GNSJPBIA0190Z-190Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Ensure the engine stand is stable and there is no risk of overturning before removing the hanging chains.
    • Use an engine stand that is large enough for supporting the engine weight (Load capacity of approximately 240kg (529 lb) or more).
    • Remove the following parts (if necessary) to increase the stand stability:
  7. Drain engine coolant by removing the cylinder block drain plugs (A), (B), (C) and (D) from cylinder block as shown.
    G04146961Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE: For Canada, (D) is not plug but block heater.
  8. Remove cylinder heads. Refer to Removal and Installation .
  9. Remove sub harness, and remove knock sensors.
    CAUTION: Handle sensor carefully; do not shock or drop.
  10. Check the connecting rod side clearance. Refer to Inspection After Disassembly .
  11. Remove piston and connecting rod assembly.
    CAUTION: Be careful not to drop connecting rod bearing or scratch the bearing surface.
  12. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
  13. Remove connecting rod bearing cap.
  14. Push piston and connecting rod assembly out of the cylinder head side using suitable tool.
    G04146782Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to damage the cylinder wall or crankshaft pin resulting from an interference of the connecting rod big end.
  15. Remove connecting rod bearings from connecting rod and connecting rod bearing cap.
    CAUTION: Identify installation position, and store them without mixing them up.
  16. Remove piston rings from piston.
    • Before removing piston rings, check the piston ring side clearance. Refer to Inspection After Disassembly .
    • Remove piston rings using piston ring expander or suitable tool.
      G04073101Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • When removing piston rings, be careful not to damage piston.
    • Be careful not to damage piston rings by expanding them excessively.
  17. Remove piston from connecting rod as follows:
    1. Remove snap ring using snap ring pliers.
      G04073102Courtesy of NISSAN NORTH AMERICA, INC.
    2. Heat piston to 60 deg. to 70 deg.C (140 deg. to 158 deg.F) with industrial use drier or equivalent.
      G04073103Courtesy of NISSAN NORTH AMERICA, INC.
    3. Push out piston pin with drift which has an outer diameter of approximately 20 mm (0.79 in).
      G04073104Courtesy of NISSAN NORTH AMERICA, INC.
  18. Remove lower cylinder block bolts.
    • Before loosening lower cylinder block bolts, measure the crankshaft end play. Refer to Inspection After Disassembly .
    • Loosen lower cylinder block bolts in reverse order as shown in several different steps.
      G04146787Courtesy of NISSAN NORTH AMERICA, INC.
      NOTE: Use socket (size E14) for bolt Nos. 1 to 16 (M10 bolt).
  19. Remove lower cylinder block.
    • Cut liquid gasket for removal using Tool. Refer to Precaution for Liquid Gasket .

      Tool number

      : KV10111100 (J-37228)
      CAUTION: Be careful not to damage the mounting surfaces.
  20. Remove crankshaft.
  21. Pull rear oil seal out from rear end of crankshaft.
    CAUTION: Be careful not to damage crankshaft or cylinder block.
    NOTE: When replacing rear oil seal without removing lower cylinder block, use a suitable tool to pull the rear oil seal installed between crankshaft and cylinder block out.
  22. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.
    CAUTION:
    • Do not drop main bearing, or scratch the surface.
    • Identify installation positions, and store them without mixing them up.
  23. Remove oil jet.
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