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Piston And Crankshaft

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
  1. Place engine on a work stand.
    Fig 1: Placing Engine On Work Stand
    G02007679Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Drain coolant and oil.
  3. Remove timing chain.

    Refer to "REMOVAL .

  4. Remove pistons with connecting rod.
    • When disassembling piston and connecting rod, remove snap ring first. Then heat piston to 60-70°C (140-158°F) or use piston pin press stand at room temperature.
      Fig 2: Heating Piston & Connecting Rob In Piston Heater
      G02007680Courtesy of NISSAN MOTOR CO., U.S.A.
      CAUTION:
      • When piston rings are not replaced, make sure that piston rings are mounted in their original positions.
      • When replacing piston rings, if there is no punch mark, install with either side up.
  5. Measure crankshaft end play. Refer to CRANKSHAFT .
  6. Loosen main bearing caps in numerical order as shown in Fig 3.
    Fig 3: Identifying Bearing Cap Bolt Removal Sequence
    G02007681Courtesy of NISSAN MOTOR CO., U.S.A.
    • Bolts should be loosened in two or three steps. 
  7. Remove bearing caps, main bearings and crankshaft.
  8. Remove signal plate from crankshaft.
    Fig 4: Identifying Signal Plate From Crankshaft
    G02007682Courtesy of NISSAN MOTOR CO., U.S.A.
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