Disassembly and Assembly: Assembly

Fig 1: Identifying Water Drain Plug And Washers

Courtesy of NISSAN NORTH AMERICA, INC.

Refer to "COMPONENTS " for symbols in the figure.

• Tighten each plug as specified below:

  Part	Tightening torque
  Plug (2)	78.0 Nm (8.0 kg-m, 58 ft-lb)
  Water drain plug (3)	19.6 Nm (2.0 kg-m, 14 ft-lb)
  Plug (4)	53.9 Nm (5.5 kg-m, 40 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 equivalent. Refer to  "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".

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

  Use high strength thread locking sealant or equivalent. Refer to  "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".

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 2: Identifying Thrust Bearings And Main Bearings

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   • 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.

• While turning crankshaft by hand, check that it turns smoothly.

• Align the identification number to the journal position to install.
  Fig 3: Identifying Main Bearing Caps With Identification Number

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• 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.

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 4: Installing Main Bearing Cap Bolts And Sub Bolts

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

   Torque: 39.2 N.m (4.0 kg-m, 29 ft-lb) 

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

   Torque: 29.4 N.m (3.0 kg-m, 22 ft-lb) 

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

   Angle tightening: 40 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: 30 degrees 

   Fig 5: Tightening Main Bearing Cap Bolts Using Angle Wrench

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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 ".

• Apply a continuous bead of liquid gasket with tube presser (commercial service tool) to rear oil seal retainer as shown in the figure.

  Use Genuine RTV silicone sealant or equivalent. Refer to  "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".

  Fig 6: Identifying Liquid Gasket Applying Area

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• 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.
  Fig 7: Identifying Oil Seal Lip And Dust Seal Lip

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• Press in rear oil seal (1) to the position as shown in the figure.
  Fig 8: Identifying Rear Oil Seal

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• Using a suitable drift [outer diameter: 101 mm (3.98 in)].
• Check the garter spring is in position and seal lips are not inverted.

• 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 9: Identifying Piston Head And Connecting Rod With Oil Hole And Front Mark

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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.

Fig 10: Checking Piston Ring Clearance Using Piston Ring Expander

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• If there is stamped mark on ring, mount it with marked side up.

  Stamped mark: 

  Top ring (A): 1 K 

  Second ring (B): 2 K 

  Fig 11: Identifying Rings Installation Position

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• Position each ring with the gap as shown in the figure referring to the piston front mark (D).
  Fig 12: Identifying Rings Gaps

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• Check the piston ring side clearance. Refer to "INSPECTION ".

• 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 13: Identifying Connecting Rod, Bearings With Protrusion, Cutout And Oil Hole

  Courtesy of NISSAN NORTH AMERICA, INC.

• 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 14: Installing Piston Ring Using Piston Ring Compressor

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• Match the stamped cylinder number marks on connecting rod with those on connecting rod bearing cap to install.
  Fig 15: Identifying Grades And Codes

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• Be sure that front mark (H) on connecting rod bearing cap is facing the front of the engine.

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: 29.4 N.m (3.0 kg-m, 21.7 ft-lb) 

4. Completely loosen connecting rod bolts.

   Torque: 0 N.m (0 kg-m, 0 ft-lb) 

5. Tighten connecting rod bolts.

   Torque: 19.6 N.m (2.0 kg-m, 14.5 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 ".

• Install knock sensors in the direction shown in the figure.
  Fig 16: Identifying Knock Sensors

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• 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.