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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1787 (Engine Mechanical) >> Cylinder Block >> Disassembly and Assembly >> Disassembly
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Disassembly and Assembly: Disassembly

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine assembly. Refer to "ENGINE ASSEMBLY ".
  2. Install Tools to the right side of cylinder block.

    Tool numbers : KV10117001 ( - ) 

    : KV10106500 ( - ) 

    Use the spacer on the engine rear side.

    Fig 1: Identifying Tools To Right Side Of Cylinder Block With Torque Specifications
    G04196152Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Lift engine and mount it on Tool.

    Tool numbers : KV10117001 ( - ) 

    : KV10106500 ( - ) 

    : ST0501S000 ( - ) 

    Fig 2: Lifting Engine And Mount On Tool
    G04196153Courtesy of NISSAN MOTOR CO., U.S.A.
    • A commercial engine stand can be used.
      CAUTION: Use an engine stand that has a load capacity of approximately 220kg (441 lb) or more.
      NOTE: This example is an engine stand for holding at the transaxle mounting side with the drive plate removed.
      Fig 3: Identifying Commercial Engine Stand
      G04196154Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove the knock sensor.
    CAUTION: Carefully handle sensor avoiding shocking it.
  5. Drain the engine of all coolant and oil.
  6. Remove the lower and upper oil pans. Refer to "REMOVAL ".
  7. Remove the timing chain. Refer to REMOVAL .
  8. Remove oil pump. Refer to "REMOVAL ".
  9. Remove the cylinder heads. Refer to "REMOVAL ".
    Fig 4: Identifying Knock Sensor
    G04196155Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Lock crankshaft using Tool, and remove drive plate bolts.
    • Loosen the bolts in diagonal order.

      Tool number : KV10117700 (J-44716) 

    CAUTION:
    • Do not disassemble drive plate.
    • Never place the 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.
  11. Remove pilot converter using Tool.

    Tool number : ST16610001 (J-23907) 

    Fig 5: Identifying Pilot Converter Using Tool
    G04196156Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Cut away liquid gasket using Tool`s and remove rear oil seal retainer. Refer to "REMOVAL OF LIQUID GASKET SEALING ".

    Tool number : KV10111100 (J-37228) 

    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 form a single part and are handled as an assembly.
    Fig 6: Cutting Away Liquid Gasket Using Tool
    G04196157Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Remove baffle plate from main bearing beam.
  14. Remove the piston and connecting rod assemblies.
    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.
      • Before removing the piston and connecting rod assembly, check the connecting rod side clearance. Refer to "CONNECTING ROD ".
        Fig 7: Pushing Piston And Connecting Rod Assembly Out To Cylinder Head Side
        G04196158Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Remove the connecting rod bearings.
    CAUTION:
    • When removing the connecting rod side bearings, note the installation position. Keep them in the correct order.
  16. Remove the piston rings from the piston.
    • Use a piston ring expander.
    • Before removing the piston rings, check the piston ring side clearance. Refer to "PISTON RING SIDE CLEARANCE ".
    CAUTION:
    • When removing the piston rings, be careful not to damage the piston. Do not expand the rings excessively.
    • Be careful to mark the rings if they are to be reused so they are installed in their original position.
      Fig 8: Removing Piston Rings From Piston
      G04196159Courtesy of NISSAN MOTOR CO., U.S.A.
  17. Remove the piston from the connecting rod as follows.
    1. Remove the snap ring, using suitable snap ring pliers.
      Fig 9: Removing Snap Ring Using Suitable Snap Ring Pliers
      G04196160Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Heat the pistons to 60° - 70°C (140° - 158°F).
      Fig 10: Identifying Pistons Heater
      G04196161Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Push out the piston pin with a suitable tool, with an outer diameter approximately 20 mm (0.8 in).
      Fig 11: Pushing Out Piston Pin With Tool
      G04196162Courtesy of NISSAN MOTOR CO., U.S.A.
  18. Loosen the main bearing cap bolts in the order as shown and remove the main bearing beam, bearing caps and crankshaft.
    • Before loosening the main bearing cap bolts, measure the crankshaft side clearance. Refer to "OUT-OF-ROUND AND TAPER OF CRANKSHAFT ".
      Fig 12: Main Bearing Cap Bolts Loosening Sequence
      G04196163Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Remove the oil jets.
  20. Remove the main bearings and thrust bearings from the cylinder block and main bearing caps.
    CAUTION: When removing them, note their direction and position. Keep them in the correct order for installation.
    Fig 13: Identifying Dowel Pin
    G04196164Courtesy of NISSAN MOTOR CO., U.S.A.
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