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Disassembly and Assembly: Disassembly

WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove engine assembly from vehicle, and separate transmission from engine. Refer to "ENGINE ASSEMBLY ".
  2. Remove engine mounting bracket. Refer to "ENGINE ASSEMBLY ".
  3. Remove RH exhaust manifold. Refer to "EXHAUST MANIFOLD AND THREE WAY CATALYST ".
  4. Install engine sub-attachment with engine stand shaft (special service tool) to right side of cylinder block.
    • Use spacer to engine rear side.
    Fig 1: Installing Engine Sub-Attachment With Engine Stand Shaft
    G02151613Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Lift engine, and mount it onto the engine stand (special service tool).
    Fig 2: Lifting Engine
    G02151614Courtesy of NISSAN MOTOR CO., U.S.A.
    • A commercial engine stand can be used.
    CAUTION: Use an engine stand that has a load capacity [approximately 220kg (441 lb) or more] large enough for supporting the engine weight.
    NOTE: This example is an engine stand for holding at transmission mounting side with flywheel (M/T models) or drive plate (A/T models) removed.
    Fig 3: Mounting Engine On Engine Stand
    G02151615Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Drain engine oil.
  7. Drain engine coolant by removing water drain plugs from cylinder block both sides at "B" and "C" and cylinder block front side at "A" as shown in the figure.
    Fig 4: Identifying Cylinder Block
    G02151616Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Remove the following components and associated parts:
  9. Remove knock sensor.
    CAUTION: Carefully handle the sensor avoiding shocks.
  10. Remove clutch cover and clutch disc (M/T models). Refer to CLUTCH DISC, CLUTCH COVER .
  11. Remove drive plate (A/T models) or flywheel (M/T models). Fix crankshaft with a ring gear stopper (special service tool), and remove mounting bolts.
    • Loosen mounting bolts in diagonal order.
    • Use TORX socket for flywheel mounting bolts (size: T55, commercial service tool).
    Fig 5: Installing Special Tool
    G02151617Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Do not disassemble flywheel (M/T models) or drive plate (A/T models).
    • Never place flywheel (M/T models) or drive plate (A/T models) with signal plate facing down.
    • When handling signal plate, take care not to damage or scratch it.
    • Handle signal plate in a manner that prevents it from becoming magnetized.
    Fig 6: Checking Deformation And Damage
    G02151618Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Remove pilot converter (A/T models) or pilot bushing (M/T models) using pilot bushing puller (special service tool) or suitable tool as necessary.
  13. Remove rear oil seal retainer.
    • Remove by inserting a screwdriver between main bearing cap and rear oil seal retainer.
    CAUTION: If rear oil seal retainer is removed, replace it with a new one.
    NOTE: Rear oil seal and retainer make up a single part and are removed as an assembly.
    Fig 7: Removing Rear Oil Seal Retainer
    G02151619Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Remove baffle plate from main bearing beam (for models produced after July 2002).
  15. Remove the piston and connecting rod assembly.
    1. Position the crankshaft pin corresponding to the connecting rod to be removed onto the bottom dead center.
    2. Remove the connecting rod cap.
    3. Using a hammer handle or similar tool, push the piston and connecting rod assembly out to the cylinder head side.
  16. Remove the connecting rod bearings from connecting rod and connecting rod cap.
    Fig 8: Pushing Piston And Connecting Rod Assembly Out To Cylinder
    G02151620Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • When removing them, note the installation position. Keep them in the correct order.
  17. Remove the piston rings form the piston.
    • Use a piston ring expander (commercial service tool).
    CAUTION:
    • When removing the piston rings, be careful not to damage the piston.
    • Be careful not to damage piston rings by expanding them excessively.
    Fig 9: Removing Piston Rings Form Piston
    G02151621Courtesy of NISSAN MOTOR CO., U.S.A.
  18. Remove the piston from the connecting rod as follows.
    1. Using a snap ring pliers, remove the snap ring.
      Fig 10: Removing Snap Ring
      G02151622Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Heat piston to 60 to 70°C (140 to 158°F) with drier or equivalent.
      Fig 11: Heating Piston With Drier
      G02151623Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Push out piston pin with stick of outer diameter approximately 20 mm (0.79 in).
      Fig 12: Pushing Out Piston Pin
      G02151624Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Remove main bearing cap bolt.
    NOTE: Use TORX socket (size E14).
    • Before loosening main bearing cap bolts, measure crankshaft end play. Refer to "CRANKSHAFT END PLAY ".
    • Loosen them in the numerical order shown in the figure in several different steps.
    Fig 13: Removing Main Bearing Cap Bolt
    G02151625Courtesy of NISSAN MOTOR CO., U.S.A.
  20. Remove main bearing beam.
    Fig 14: Removing Main Bearing Beam
    G02151626Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Remove main bearing cap.
    • Using main bearing cap bolts, remove main bearing cap while shaking it back-and-forth.
  22. Remove crankshaft.
  23. Remove main bearings and thrust bearings from cylinder block and main bearing cap.
    CAUTION: Identify installation positions, and store them without mixing them up.
  24. Remove oil jet.
    Fig 15: Removing Main Bearing Cap
    G02151627Courtesy of NISSAN MOTOR CO., U.S.A.
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