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Disassembly and Assembly: Disassembly

WARNING: This page is about a different car, the 2013 Nissan Xterra. 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 generator. Refer to "REMOVAL AND INSTALLATION ".
  4. Remove the parts that may restrict installation of engine to engine stand.
    1. Remove clutch cover and clutch disc (M/T models). Refer to "REMOVAL AND INSTALLATION ".
    2. Remove flywheel (M/T models) or drive plate (A/T models).
      • Holding crankshaft pulley bolts, lock crankshaft to remove flywheel or drive plate bolts.
      • Loosen bolts diagonally.
      CAUTION:
      • Be careful not to damage or scratch drive plate (A/T models) and contact surface for clutch disc of flywheel (M/T models). Especially avoid deforming and damaging of 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.
      Fig 1: Identifying Signal Plate
      G08710337Courtesy of NISSAN NORTH AMERICA, INC.
  5. Remove pilot converter (A/T models) using Tool as necessary.

    Tool number: ST16610001 (J-23907) 

    Fig 2: Removing Pilot Converter (A/T Models) Using Tool
    G08710338Courtesy of NISSAN NORTH AMERICA, INC.
  6. Lift engine, and mount to engine stand.
    • Any widely used commercially available engine stand can be used.
      CAUTION:
      • Before removing the hanging chains, make sure engine stand is stable and there is no risk of overturning.
      • Use engine stand that has a load capacity large enough to support the engine's weight [approximately 220 kg (441 lb) or more].
      • If the load capacity of the stand is not adequate, remove the following parts to reduce the potential risk of overturning the stand.
      • Remove fuel tube and fuel injector assembly. Refer to "REMOVAL AND INSTALLATION ".
      • Remove intake manifold. Refer to "REMOVAL AND INSTALLATION ".
      • Remove rocker cover. Refer to "REMOVAL AND INSTALLATION ".
      • Other removable brackets.
      Fig 3: Mounting Engine To Engine Stand Using Lifter
      G08710339Courtesy of NISSAN NORTH AMERICA, INC.
  7. Drain engine coolant by removing the cylinder block drain plugs (A), (B), (C) and (D) from cylinder block as shown below.
    NOTE: For Canada, (D) is not plug but block heater.
    Fig 4: Identifying Cylinder Block Drain Plugs And Washers
    G08710340Courtesy of NISSAN NORTH AMERICA, INC.
  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. Remove piston and connecting rod assembly as follows:
    CAUTION: Be careful not to drop connecting rod bearing or to scratch the bearing surface.
  11. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
  12. Remove connecting rod bearing cap.
  13. Push piston and connecting rod assembly out of the cylinder head side using suitable tool.
    CAUTION: Be careful not to damage the cylinder wall or crankshaft pin resulting from an interference of the connecting rod big end.
    Fig 5: Removing Piston And Connecting Rod Assembly From Cylinder Head Side Using Tool
    G08710341Courtesy of NISSAN NORTH AMERICA, INC.
  14. Remove connecting rod bearings from connecting rod and connecting rod bearing cap.
    CAUTION: Identify installation position, and store them without mixing them up.
  15. 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.
    CAUTION:
    • When removing piston rings, be careful not to damage piston.
    • Be careful not to damage piston rings by expanding them excessively.
    Fig 6: Removing/Installing Piston Rings Using Expander
    G08710342Courtesy of NISSAN NORTH AMERICA, INC.
  16. Remove piston from connecting rod as follows:
    1. Remove snap ring using snap ring pliers.
      Fig 7: Removing Snap Ring Using Pliers
      G08710343Courtesy of NISSAN NORTH AMERICA, INC.
    2. Heat piston to 60° to 70°C (140° to 158°F) with industrial use drier or equivalent.
      Fig 8: Heating Piston To 60° To 70°C Using Drier
      G08710344Courtesy of NISSAN NORTH AMERICA, INC.
    3. Push out piston pin with drift which has an outer diameter of approximately 20 mm (0.79 in).
      Fig 9: Pushing Out Piston Pin Using Drift
      G08710345Courtesy of NISSAN NORTH AMERICA, INC.
  17. 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 of the order shown below in several different steps.
      NOTE: Use socket (size E14) for bolts No. 1 to 16 (M10 bolt).
      Fig 10: Lower Cylinder Block Bolt (Reverse For Loosening)
      G08710346Courtesy of NISSAN NORTH AMERICA, INC.
  18. 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.
  19. Remove crankshaft.
  20. Pull rear oil seal out from rear end of crankshaft.
    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.
    CAUTION: Be careful not to damage crankshaft or cylinder block.
  21. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.
    CAUTION:
    • Do not drop main bearing, and to scratch the surface.
    • Identify installation positions, and store them without mixing them up.
  22. Remove oil jet.
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