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Disassembly and Assembly: Assembly

CAUTION: Do not reuse washers.
  1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to remove any foreign material.
    CAUTION: Use a goggles to protect your eye.
  2. Install each plug to cylinder block as shown in the figure.
    Fig 1: Identifying Cylinder Block Plug
    G08193454Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse washers.
    Part Washer Tightening torque
    1 No 19.6 N.m (2.0 kg-m, 14 ft-lb)
    3 Yes 78.0 N.m (8.0 kg-m, 58 ft-lb)
    4 Yes 12.3 N.m (1.3 kg-m, 9 ft-lb)
  3. Install oil jet.
    • Insert oil jet dowel pin (A) into cylinder block dowel pin hole, and tighten mounting bolts.
      Fig 2: Identifying Oil Jet Dowel Pin
      G08193455Courtesy of NISSAN NORTH AMERICA, INC.
  4. Install main bearings and thrust bearings as follows:
    CAUTION: Never drop main bearing, and to scratch the surface.
    1. Remove dust, dirt, and engine oil on bearing mating surfaces of cylinder block and lower cylinder block.
    2. Install thrust bearings (1) to the both sides of the No. 3 journal housing on cylinder block.
      Fig 3: Identifying Thrust Bearing
      G08193456Courtesy of NISSAN NORTH AMERICA, INC.
      • Install thrust bearings with the oil groove (E) facing crankshaft arm (outside).
    3. Install main bearings paying attention to the direction.
      Fig 4: Identifying Main Bearing With Oil Hole And Groove
      G08193457Courtesy of NISSAN NORTH AMERICA, INC.
      • Main bearing with oil hole (B) and groove (C) goes on cylinder block. The one without them goes on lower cylinder block.
      • Before installing main bearings, apply engine oil to the bearing surface (inside). Do not apply engine oil to the back surface, but thoroughly clean it.
      • When installing, align main bearing stopper protrusion to cutout of cylinder block and lower cylinder block.
      • Ensure the oil holes on cylinder block and those on the corresponding bearing are aligned.
  5. Install crankshaft to cylinder block.
    • While turning crankshaft by hand, check that it turns smoothly.
  6. Install lower cylinder block.
    NOTE: Lower cylinder block cannot be replaced as a single part, because it is machined together with cylinder block.
    • Apply a continuous bead of liquid gasket with the tube presser (commercial service tool) to lower cylinder block as shown in the figure.
      Fig 5: Identifying Lower Cylinder Block Liquid Gasket Applying Area
      G08193458Courtesy of NISSAN NORTH AMERICA, INC.

      Use Genuine RTV Silicone Sealant or equivalent. Refer to  "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".

  7. Inspect the outer diameter of lower cylinder block bolt. Refer to "INSPECTION ".
  8. Install lower cylinder block bolts in numerical order as shown in the figure as follows:
    1. Apply new engine oil to threads and seat surfaces of lower cylinder block bolts.
    2. Tighten lower cylinder block bolts (No. 17 to 26) in numerical order as shown in the figure.
      Fig 6: Identifying Lower Cylinder Block Bolts Tightening Order
      G08193459Courtesy of NISSAN NORTH AMERICA, INC.

      Torque : 25.0 N.m (2.6 kg-m, 18 ft-lb) 

    3. Repeat step  b.
    4. Tighten lower cylinder block bolt (No. 1 to 16) in numerical order as shown in the figure.
      Fig 7: Identifying Lower Cylinder Block Bolts Tightening Order
      G08193460Courtesy of NISSAN NORTH AMERICA, INC.

      Torque : 35.3 N.m (3.6 kg-m, 26 ft-lb) 

    5. Turn lower cylinder block bolt (No. 1 to 16) 90 degrees clockwise (angle tightening).
      CAUTION: Use the angle wrench [SST: KV10112100 (BT8653-A)] (A) to check tightening angle. Never make judgment by visual inspection.
      Fig 8: Checking Lower Cylinder Block Bolt Tightening Angle Using Angle Wrench
      G08193461Courtesy of NISSAN NORTH AMERICA, INC.
      • After installing lower cylinder block bolts, check that crankshaft can be rotated smoothly by hand.
      • Check the crankshaft end play. Refer to "CYLINDER BLOCK ".
  9. Install piston to connecting rod as follows:
    1. Using a snap ring pliers, install new snap ring to the groove of piston rear side.
      • Insert it fully into groove to install.
    2. Install piston to connecting rod.
      • Using an industrial use drier or similar tool, heat piston until piston pin can be pushed in by hand without excess force [approximately 60 to 70°C (140 to 158°F)]. From the front to the rear, insert piston pin into piston and connecting rod.
      • Assemble so that the front mark on the piston head and the cylinder number on connecting rod are positioned as shown in the figure.
        Fig 9: Identifying Cylinder Number, Front Mark, Piston And Pin Grade Number
        G08193462Courtesy of NISSAN NORTH AMERICA, INC.
    3. Install new snap ring to the groove of the piston front side.
      • Insert it fully into groove to install.
      • After installing, check that connecting rod moves smoothly.
  10. Using a piston ring expander (commercial service tool) (A), install piston rings.
    CAUTION:
    • When installing piston rings, be careful not to damage piston.
    • Never damage piston rings by expending them excessively.
    Fig 10: Removing Piston Rings From Piston Using Piston Ring Expander
    G08193463Courtesy of NISSAN NORTH AMERICA, INC.
    • If there is stamped mark on ring, mount it with marked side up.

      Stamped mark: 

      Top ring (A): 1 N 

      Second ring (B): 2 N 

      Fig 11: Identifying Piston Rings Installation Position
      G08193464Courtesy of NISSAN NORTH AMERICA, INC.
    • Position each ring with the gap as shown in the figure referring to the piston front mark (D).
      Fig 12: Identifying Piston Rings Gap
      G08193465Courtesy of NISSAN NORTH AMERICA, INC.
    • Check the piston ring side clearance. Refer to "CYLINDER BLOCK ".
  11. Install connecting rod bearings to connecting rod and connecting rod bearing cap.
    CAUTION: Never drop connecting rod bearing, and to scratch the surface.
    • Before installing connecting rod bearings, apply engine oil to the bearing surface (inside). Do not apply engine oil to the back surface, but thoroughly clean it.
    • When installing, align connecting rod bearing stopper protrusion (B) with cutout (C) of connecting rods and connecting rod bearing caps to install.
    • Ensure the oil hole (A) on connecting rod and that on the corresponding bearing are aligned.
      Fig 13: Identifying Connecting Rod Bearing Stopper Protrusion With Cutout And Oil Hole
      G08193466Courtesy of NISSAN NORTH AMERICA, INC.
  12. Install piston and connecting rod assembly to crankshaft.
    • Position crankshaft pin corresponding to connecting rod to be installed onto the bottom dead center.
    • Apply engine oil sufficiently to the cylinder bore, piston and crankshaft pin journal.
    • Match the cylinder position with the cylinder number on connecting rod to install.
    • Be sure that front mark on piston crown is facing front of engine.
    • Using a piston ring compressor [SST: EM03470000 (J-8037)] (A) or suitable tool, install piston with the front mark on the piston crown facing the front of the engine.
      CAUTION: Never damage the cylinder wall and crankshaft pin, resulting from an interference of the connecting rod big end.
      Fig 14: Installing Piston Into Cylinder Block Using Tool
      G08193467Courtesy of NISSAN NORTH AMERICA, INC.
  13. Install connecting rod bearing cap.
    • Match the stamped cylinder number marks on connecting rod with those on connecting rod bearing cap to install.
      Fig 15: Identifying Bearing Stopper Groove, Grades And Codes
      G08193468Courtesy of NISSAN NORTH AMERICA, INC.
    • Be sure that front mark (H) on connecting rod bearing cap is facing front of the engine.
  14. Tighten connecting rod bolt as follows:
    1. Inspect the outer diameter of connecting rod bolt. Refer to "INSPECTION ".
    2. Apply engine oil to the threads and seats of connecting rod bolts.
    3. Tighten connecting rod bolts.

      Torque : 28.4 N.m (2.9 kg-m, 21 ft-lb) 

    4. Completely loosen connecting rod bolts.

      Torque : 0 N.m (0 kg-m, 0 ft-lb) 

    5. Tighten connecting rod bolts.

      Torque : 24.5 N.m (2.5 kg-m, 18 ft-lb) 

    6. Then turn connecting rod bolts 90 degrees clockwise (angle tightening).
      CAUTION: Always use the angle wrench [SST: KV10112100 (BT8653-A)] (A). Never tightening based on visual check alone.
      • After tightening connecting rod bolts, check that crankshaft rotates smoothly.
      • Check the connecting rod side clearance. Refer to "CYLINDER BLOCK ".
        Fig 16: Checking Connecting Rod Bolts Tightening Angle Using Angle Wrench
        G08193469Courtesy of NISSAN NORTH AMERICA, INC.
  15. Install baffle plate.
  16. Install new rear oil seal. Refer to "REAR OIL SEAL: REMOVAL AND INSTALLATION ".
    • Apply new engine oil to both oil seal lip and dust seal lip.
  17. Install pilot converter.
    • With a drift of the following outer diameter, press-fit as far as it will go.

      Pilot converter: Approximately 33 mm (1.30 in) 

      Fig 17: Installing Pilot Converter Using Drift
      G08193470Courtesy of NISSAN NORTH AMERICA, INC.
    • Press-fit pilot converter with its chamfer facing crankshaft as shown in the figure.
      Fig 18: Identifying Pilot Converter
      G08193471Courtesy of NISSAN NORTH AMERICA, INC.
  18. Install knock sensors.
    Fig 19: Identifying Knock Sensors
    G08193472Courtesy of NISSAN NORTH AMERICA, INC.
    • Install knock sensor so that connector faces rear of the engine.
    • After installing knock sensor, connect harness connector, and lay it out to rear of the engine.
      CAUTION:
      • Never tighten mounting bolts while holding connector.
      • If any impact by dropping is applied to knock sensor, replace it with new one.
      NOTE:
      • Check that there is no foreign material on the cylinder block mating surface and the back surface of knock sensor.
      • Check that knock sensor does not interfere with other parts.
  19. Note the following, and assemble in the reverse order of disassembly after this step.

    Drive plate 

    • When installing drive plate to crankshaft, be sure to correctly align crankshaft side dowel pin and drive plate side dowel pin hole.
      CAUTION: If these are not aligned correctly, engine runs roughly and "MIL" turns on.
    • Install drive plate (2) and reinforcement plate (3) as shown in the figure.
      Fig 20: Identifying Drive Plate And Reinforcement Plate
      G08193473Courtesy of NISSAN NORTH AMERICA, INC.
    • Holding ring gear with the ring gear stopper [SST: KV10118600 (J-48641)].
    • Tighten the mounting bolts crosswise over several times.