Disassembly and Assembly: Assembly

• Apply thread sealant to the thread of water drain plugs.

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

• Tighten each water drain plug as specified below.

Fig 1: Tightening Torque Chart

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Fig 2: Identifying Plug Location

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• Apply thread sealant to the thread of plugs "D" and "E".

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

• Apply thread sealant to the thread of plug "F".

  Use Anaerobic Liquid Gasket or equivalent. Refer to  RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS  . 

• Tighten each plug as specified below.

Fig 3: Tightening Torque Chart

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• Insert oil jet dowel pin into the cylinder block dowel pin hole, and tighten the mounting bolts.

Fig 4: Inserting Oil Jet Dowel Pin

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1. Remove dust, dirt, and oil on the bearing mating surfaces of the cylinder block and the main bearing cap.
2. Install the thrust bearings to the both sides of the No. 3 journal housing on the cylinder block and the main bearing cap.
   • Install the thrust bearings with the oil groove facing the crankshaft arm (outside).
   • Install bearing with a projection on one end on cylinder block, and bearing with a projection at center on cap. Align each projection with mating notch.
   Fig 5: Installing Main Bearings And Thrust Bearings

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Install the main bearings paying attention to the direction.
   • The main bearing with an oil hole and groove goes on the cylinder block. The one without them goes on the main bearing cap.
   • Before installing the bearings, apply engine oil to the bearing surface (inside). Do not apply oil to the back surface, but thoroughly clean it.
   • When installing, align the bearing stopper to the notch.
   • Ensure the oil holes on cylinder block and those on the corresponding bearing are aligned.

Fig 6: Installing Main Bearings

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

• Main bearing caps are identified by identification mark cast on them. For installation, face front mark to front side.

Fig 7: Locating Front Mark

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• Install main bearing beam with front mark facing downward (oil pan side).
• Install main bearing beam with front mark facing front of engine.

Fig 8: Installing Main Bearing Beam

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1. Apply new engine oil to threads and seat surfaces of mounting bolts.
2. Tighten bolts in numerical order with tightening torque 32.3 to 38.3 N.m (3.3 to 3.9 kg-m, 24 to 28 ft-lb).
   Fig 9: Tightening Bolts In Numerical Order

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3. Turn all bolts another 90 to 95 degrees clockwise [Target: 90 degrees (Angle tightening)].

• After installing mounting bolts, make sure that crankshaft can be rotated smoothly by hand.
• Check crankshaft end play. Refer to "CRANKSHAFT END PLAY ".

Fig 10: Checking Tightening Angle

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1. Using a snap ring pliers, install a new snap ring to the groove of the piston rear side.
   • Insert it fully into groove to install.
2. Install the piston to the connecting rod.
   • Using an industrial drier or similar tool, heat the piston until the piston pin can be pushed in by hand without excess force [approx. 60 to 70°C (140 to 158°F)]. From the front to the rear, insert the piston pin into the piston and the connecting rod.
   • Assemble so that the front mark on the piston crown and the cylinder number on the connecting rod are positioned as shown in the figure.
3. Install a new snap ring to the groove of the piston front side.
   • Insert it fully into groove to install.
   • After installing, check that the connecting rod moves smoothly.

Fig 11: Locating Identification Number

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• If there is stamped mark on ring, mount it with marked side up.
  NOTE: If there is no stamp on ring, no specific orientation is required for installation.

  Stamped mark: 

  1. Top ring: -
  2. Second ring: R
  CAUTION: Be careful not to damage the piston.
  Fig 12: Locating Punchmark

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• Position each ring with the gap as shown in the figure referring to the piston front mark.

Fig 13: Positioning Ring With Gap

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• When installing the connecting rod bearings, apply engine oil to the bearing surface (inside). Do not apply oil to the back surface, but thoroughly clean it.
• When installing, align the connecting rod bearing stopper protrusion with the cutout of the connecting rod to install.
• Check the oil hole on the connecting rod and that on the corresponding bearing are aligned.

Fig 14: Locating Cutout Mark

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• Position the crankshaft pin corresponding to the connecting rod to be installed onto the bottom dead center.
• Apply engine oil sufficiently to the cylinder bore, piston and crankshaft pin.
• Match the cylinder position with the cylinder number on the connecting rod to install.
• Be sure that front mark on piston crown is facing front of engine.
• Using a piston ring compressor (special service tool) or suitable tool, install the piston with the front mark on the piston crown facing the front of the engine.

Fig 15: Installing Piston And Connecting Rod Assembly To Crankshaft

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• Match the stamped cylinder number marks on the connecting rod with those on the cap to install.
• Be sure that front mark on connecting rod cap is facing front of engine.

Fig 16: Identifying Sample Codes

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1. Apply engine oil to the threads and seats of the connecting rod bolts.
2. Tighten bolts to 18.6 to 20.6 N.m (1.9 to 2.1 kg-m, 14 to 15 ft-lb).
3. Then tighten all bolts 90 to 95 degrees clockwise [target: 90 degrees (Angle tightening)].

• After tightening the bolt, make sure that the crankshaft rotates smoothly.
• Check the connecting rod side clearance. Refer to "CONNECTING ROD SIDE CLEARANCE ".

Fig 17: Checking Tightening Angle

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

Fig 18: Applying Liquid Gasket

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• With drift of the following outer diameter, press-fit as far as it will go.
  1. Pilot bushing: Approx. 17 mm (0.67 in) 
  2. Pilot converter: Approx. 33 mm (1.30 in) 
  Fig 19: Installing Pilot Bushing

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• Press-fit pilot bushing as the dimension in the figure. (M/T models)
  Fig 20: Pressing-Fit Pilot Bushing

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• Press-fit pilot converter with its chamfer facing crankshaft as shown in the figure. (A/T models)
  Fig 21: Identifying Chamfer Facing

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• Install knock sensor so that connector faces front of engine.
• After installing knock sensor, connect harness connector, and lay it out to rear of engine.

Fig 22: Installing Knock Sensor

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Flywheel (M/T models) 

• When installing flywheel to crankshaft, be sure to correctly align crankshaft side dowel pin and flywheel side dowel pin hole.
  Fig 23: Locating Dowel Pin

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• There is a mating mark on the clutch cover side of flywheel. Refer it during installation.
  Fig 24: Locating Dowel Pin

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Fig 25: Installing Special Tool

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Drive plate (A/T models)