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Disassembly and Assembly: Assembly

WARNING: This page is about a different car, the 2013 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 below.
    Fig 1: Identifying Cylinder Block Drain Plugs And Washers
    G09000369Courtesy 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)
    • Replace washers (1), (5) with new ones.
      CAUTION: Do not reuse washers.
    • Apply sealant to the thread of water drain plug (3).

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

    • Apply sealant to the thread of plug (4).

      Use Genuine High Strength Thread Locking Sealant or an equivalent. Refer to  "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".

  3. Install oil jet.
    • Insert oil jet into cylinder block hole, and tighten the mounting bolt on the corner side (A) first.
      Fig 2: Oil Jet Mounting Bolt Tightening Sequence
      G09000370Courtesy 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
      G09000371Courtesy of NISSAN NORTH AMERICA, INC.
    • Press-fit pilot converter with its chamfered side facing crankshaft as shown in the figure below.
      Fig 4: Locating Pilot Converter Chamfered Side
      G09000372Courtesy 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: Locating Cylinder Block, Thrust Bearing, Crankshaft And Main Bearing (Upper And Lower)
      G09000373Courtesy 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: Locating Main Bearing Caps Identification Numbers
      G09000374Courtesy 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: Main Bearing Cap Mounting Bolts Tightening Sequence
      G09000375Courtesy of NISSAN NORTH AMERICA, INC.
    3. Tighten main bearing cap bolts (M12) in order of No. 1 - 10.

      : Torque Value: 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 Value: 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).
      Fig 8: Checking Tightening Angle Using Angle Wrench
      G09000376Courtesy of NISSAN NORTH AMERICA, INC.

      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 

    7. Tighten side bolts (M10) in order of No. 21 - 30.

      Torque Value: 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 below.
      Fig 9: Locating Sealant Application Area On Rear Oil Seal Retainer
      G09000377Courtesy 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 Lips
    G09000378Courtesy 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 below.
      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 below.
      Fig 11: Identifying Rear Oil Seal Installation Position
      G09000379Courtesy 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 below.
      Fig 12: Locating Piston To Connecting Rod Assembly Cylinder Number, Oil Hole And Front Mark
      G09000380Courtesy 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: Installing Piston Rings To Piston Using Ring Expander
    G09000381Courtesy 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: Locating Top Ring And Second Ring Stamped Mark
      G09000382Courtesy of NISSAN NORTH AMERICA, INC.
    • Position each ring with the gap as shown in the figure below, referring to the piston front mark (D).
      Fig 15: Positioning Piston Ring Gaps
      G09000383Courtesy 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: Locating Connecting Rod Bearing Stopper Protrusion, Oil Hole And Cut-Out
      G09000384Courtesy 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 And Connecting Rod Assembly To Crankshaft Using Tool
      G09000385Courtesy 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: Locating Stamped Cylinder Number Marks On Connecting Rod
      G09000386Courtesy 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 Value: 28.4 N.m (2.9 kg-m, 21 ft-lb) 

    4. Completely loosen connecting rod bolts.

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

    5. Tighten connecting rod bolts.

      : Torque Value: 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 below.
      Fig 19: Locating Knock Sensors
      G09000387Courtesy 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 below.
      Fig 20: Locating Drive Plate, Reinforcement Plate And Pilot Converter
      G09000388Courtesy 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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