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Disassembly and Assembly: Assembly

WARNING: This page is about a different car, the 2012 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
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 goggles to protect your eyes.
  2. Install each plug to cylinder block as shown in the figure.
    Fig 1: Identifying Cylinder Block Washers, Plugs And Water Drain Plugs
    G08215354Courtesy of NISSAN NORTH AMERICA, INC.
    • Tighten each plug as specified below:
    Part Tightening torque
    Plug (2) 78.0 N.m (8.0 kg-m, 58 ft-lb)
    Water drain plug (3) 19.6 N.m (2.0 kg-m, 14 ft-lb)
    Plug (4) 65.0 N.m (6.6 kg-m, 48 ft-lb)
  3. Install oil jet.
    • Insert oil jet into cylinder block hole, and tighten the mounting bolt on the corner side (A) first.
      Fig 2: Identifying Cylinder Block Hole Corner Side
      G05980215Courtesy of NISSAN NORTH AMERICA, INC.
  4. Install pilot converter to crankshaft, if removed.
    • With drift [outer diameter: Approx. 35 mm (1.38 in)], press-fit as far as it will go.
      Fig 3: Installing Pilot Converter To Crankshaft Using Drift
      G04899820Courtesy of NISSAN NORTH AMERICA, INC.
    • Press-fit pilot converter with its chamfering side facing crankshaft as shown in the figure.
      Fig 4: Identifying Pilot Converter With Chamfer Side Facing Crankshaft
      G08215357Courtesy of NISSAN NORTH AMERICA, INC.
  5. Install main bearings and thrust bearings as per the following:
    CAUTION: Be careful not to drop main bearing, and to scratch the surface.
    1. Remove dust, dirt, and engine oil on bearing mating surfaces of cylinder block and main bearing caps.
    2. Install thrust bearings (2) to both sides of the No. 3 journal housing on cylinder block (1).
      Fig 5: Identifying Cylinder Block And Related Components
      G08215358Courtesy of NISSAN NORTH AMERICA, INC.
      • Install thrust bearings with the oil groove (A) facing crankshaft arm (outside).
    3. Install main bearings paying attention to the direction.
      • Main bearing with oil hole (B) and groove (C) goes on cylinder block. The one without them goes on main bearing cap.
      • 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 main bearing.
      • Ensure the oil holes on cylinder block and those on the corresponding bearing are aligned.
  6. Install crankshaft to cylinder block.
    • While turning crankshaft by hand, check that it turns smoothly.
  7. Install main bearing caps as per the following:
    • Align the identification number to the journal position to install.
      Fig 6: Identifying Cylinder Block, Crankshaft And Related Bearing
      G08215359Courtesy of NISSAN NORTH AMERICA, INC.
    • Install it with the front mark (indicated by stamping) facing the front of engine.
    • Using plastic hammer or similar tool, tap them lightly to seat them on the installation position.
      NOTE: Main bearing cap cannot be replaced as a single parts, because it is machined together with cylinder block.
  8. Install each main bearing cap bolts as per the following:
    CAUTION: If main bearing cap bolts and sub bolts are re-used, check their outer diameters before installation. Refer to "INSPECTION ".
    1. Apply new engine oil to threads and seat surfaces of main bearing cap bolts and sub bolts.
    2. Tighten all bolts in order of (No. 1 - 30) temporarily.
      Fig 7: Identifying Main Bearing Cap Bolts Tightening Sequence
      G08215360Courtesy of NISSAN NORTH AMERICA, INC.
    3. Tighten main bearing cap bolts (M12) in order of No. 1 - 10.

      Torque: 53.9 N.m (5.5 kg-m, 40 ft-lb) 

    4. Tighten main bearing cap sub bolts (M9) in order of No. 11 - 20.

      Torque: 19.6 N.m (2.0 kg-m, 14 ft-lb) 

    5. Tighten main bearing cap bolts (M12) in order of No. 1 - 10 (clockwise).

      Angle tightening: 90 degrees 

      CAUTION: Use the angle wrench [SST: KV10112100 (BT8653-A)] (A) to check tightening angle. Never make judgment by visual inspection.
    6. Tighten main bearing cap sub bolts (M9) in order of No. 11 - 20. (clockwise)

      Angle tightening: 90 degrees 

      Fig 8: Checking Main Bearing Cap Bolts Tightening Angle Using Angle Wrench
      G05980221Courtesy of NISSAN NORTH AMERICA, INC.
    7. Tighten side bolts (M10) in order of No. 21 - 30.

      Torque: 49.0 N.m (5.0 kg-m, 36 ft-lb) 

      • After installing bolts, check that crankshaft can be rotated smoothly by hand.
      • Check the crankshaft end play. Refer to "CYLINDER BLOCK ".
  9. Install rear oil seal retainer.
    • Apply a continuous bead of liquid gasket with tube presser (commercial service tool) to rear oil seal retainer as shown in the figure.
      Fig 9: Identifying Liquid Gasket Applying Areas On Rear Oil Seal Retainer
      G08215362Courtesy of NISSAN NORTH AMERICA, INC.

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

  10. Install rear oil seal on rear oil seal retainer.
    Fig 10: Identifying Oil And Dust Seal Lip
    G08215363Courtesy of NISSAN NORTH AMERICA, INC.
    • Apply new engine oil to both oil seal lip (A) and dust seal lip (B).
    • Install it so that each seal lip is oriented as shown in the figure.
      CAUTION: Be careful not to scratch or make burrs on circumference of oil seal.
    • Press in rear oil seal (1) to the position as shown in the figure.
      Fig 11: Identifying Rear Oil Seal And Retainer Rear End Face
      G08215364Courtesy of NISSAN NORTH AMERICA, INC.
    • Using a suitable drift [outer diameter: 101 mm (3.98 in)].
    • Check the garter spring is in position and seal lips are not inverted.
  11. Install piston to connecting rod as per the following:
    • Assemble so that the front mark (A) on the piston head and the cylinder number (D) on connecting rod are positioned as shown in the figure.
      Fig 12: Identifying Oil Hole, Front Mark On Piston Head And Connecting Rod
      G08215365Courtesy of NISSAN NORTH AMERICA, INC.
    1. Using 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 dryer 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.
    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.
  12. Using a piston ring expander (commercial service tool) (A), install piston rings.
    CAUTION:
    • When installing piston rings, be careful not to damage piston.
    • Be careful not to damage piston rings by expending them excessively.
    Fig 13: Removing Piston Ring Clearance Using Expander
    G05207387Courtesy 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 14: Identifying Top And Second Ring With Stamped Marks
      G05733022Courtesy of NISSAN NORTH AMERICA, INC.
    • Position each ring with the gap as shown in the figure referring to the piston front mark (D).
      Fig 15: Identifying Piston Front Mark And Ring Gaps
      G08215368Courtesy of NISSAN NORTH AMERICA, INC.
    • Check the piston ring side clearance. Refer to "INSPECTION ".
  13. Install connecting rod bearings to connecting rod and connecting rod bearing cap.
    CAUTION: Be careful not to 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 (A) of connecting rods and connecting rod bearing caps to install.
    • Ensure the oil hole (C) on connecting rod and that on the corresponding bearing are aligned.
      Fig 16: Identifying Connecting Rod Bearing Stopper Protrusion, Cutout And Oil Hole
      G05980229Courtesy of NISSAN NORTH AMERICA, INC.
  14. 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 the front of the 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: Be careful not to damage the cylinder wall and crankshaft pin, resulting from an interference of the connecting rod big end.
    Fig 17: Installing Piston Using Piston Ring Compressor
    G04924650Courtesy of NISSAN NORTH AMERICA, INC.
  15. Install connecting rod bearing cap.
    • Match the stamped cylinder number marks on connecting rod with those on connecting rod bearing cap to install.
      Fig 18: Identifying Stamped Cylinder Number Marks On Connecting Rod
      G08215371Courtesy of NISSAN NORTH AMERICA, INC.
    • Be sure that front mark (H) on connecting rod bearing cap is facing the front of the engine.
  16. Tighten connecting rod bolts as per the following:
    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. Tighten connecting rod bolts. (clockwise)

      Angle tightening: 90 degrees 

      CAUTION: Always use the angle wrench [SST: KV10112100 (BT8653-A)]. Never make judgment by visual inspection.
      • After tightening connecting rod bolts, check that crankshaft rotates smoothly.
      • Check the connecting rod side clearance. Refer to "INSPECTION ".
  17. Install knock sensors.
    • Install knock sensors in the direction shown in the figure.
      Fig 19: Identifying Knock Sensors
      G08215372Courtesy of NISSAN NORTH AMERICA, INC.
    • After installing knock sensor, connect harness connector, and lay it out to front 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.
  18. Install oil filter (for VVEL ladder assembly).
  19. Install drive plate.
    • Install drive plate (4) and reinforcement plate (3) as shown in the figure.
      Fig 20: Identifying Crankshaft, Drive Plate, Reinforcement Plate And Pilot Converter
      G08215373Courtesy of NISSAN NORTH AMERICA, INC.
    • When installing drive plate to crankshaft (1), 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" illuminates.
    • Holding ring gear with the ring gear stopper [SST: KV10119200 (J-49277)].
    • Tighten the mounting bolts crosswise over several times.
  20. Assemble in the reverse order of disassembly.
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