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Disassembly And Assembly: Disassembly

WARNING: This page is about a different car, the 2004 Infiniti FX35 and 2003 Infiniti FX35. 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 side exhaust manifold. Refer to EXHAUST MANIFOLD AND THREE WAY CATALYST .
  4. Install engine sub-attachment with engine stand shaft (SST) to right side of cylinder block.
    • Use spacer to engine rear side.
      Fig 1: Attaching Engine To Engine Sub-Attachment
      G00726977Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Lift engine, and mount it onto engine stand (SST).
    Fig 2: Mounting Engine Onto Engine Stand
    G00726978Courtesy 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 220 kg (441 1b) or more] large enough for supporting the engine weight.
  6. Drain engine oil. Refer to CHANGING 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 3: Locating Engine Block Coolant Drain Plugs
    G00726980Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Remove cylinder head. Refer to CYLINDER HEAD .
  9. Remove knock sensor.
    CAUTION: Carefully handle sensor avoiding shocks.
  10. Remove drive plate with power tool. Fix crankshaft with a ring gear stopper [SST: KV1011770 (J44716)], and remove mounting bolts.
    • Loosen mounting bolts in diagonal order.
      CAUTION:
      • Do not disassemble drive plate.
      • Never place drive plate 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 4: Locating Signal Plate On Flywheel
      G00726981Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Remove pilot converter using pilot bushing puller (SST) or suitable tool as necessary.
    Fig 5: Removing Pilot Bushing
    G00726982Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Use a seal cutter (SST) to cut away liquid gasket and remove rear oil seal retainer.
    CAUTION:
    • Be careful not to damage mounting surface.
    • 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 6: Removing Rear Oil Seal Retainer
    G00726983Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Remove baffle plate from main bearing beam (2WD model).
  14. Remove piston and connecting rod assembly.
    1. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
    2. Remove connecting rod cap.
    3. Using a hammer handle or similar tool, push piston and connecting rod assembly out to cylinder head side.
      Fig 7: Removing Piston Assembly
      G00726984Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Remove connecting rod bearings from connecting rod and connecting rod cap.
    CAUTION: When removing them, note the installation position. Keep them in the correct order.
  16. Remove piston rings from piston.
    Fig 8: Removing Piston Rings
    G00726985Courtesy of NISSAN MOTOR CO., U.S.A.
    • Use a piston ring expander (commercial service tool).
      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. Using a snap ring pliers, remove snap ring.
      Fig 9: Removing Piston Pin Snap Ring
      G00726986Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Heat piston to 60 to 70°C (140 to 158°F) with industrial use drier or equivalent.
      Fig 10: Heating Piston To Remove Piston Pin
      G00726987Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Push out piston pin with stick of outer diameter approximately 20 mm (0.79 in).
      Fig 11: Removing Piston Pin
      G00726988Courtesy of NISSAN MOTOR CO., U.S.A.
  18. 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 12: Removing Main Bearing Cap Bolts In Sequence
      G00726989Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Remove main bearing beam.
    Fig 13: Removing Main Bearing Beam
    G00726990Courtesy of NISSAN MOTOR CO., U.S.A.
  20. Remove main bearing cap.
    • Using main bearing cap bolts, remove main bearing cap while shaking it back-and-forth.
      Fig 14: Removing Main Bearing Cap
      G00726991Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Remove crankshaft.
  22. Remove main bearings and thrust bearings from cylinder block and main bearing cap.
    CAUTION: Identify installation positions, and store them without mixing them up.
  23. Remove oil jet.
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