Disassembly and Assembly: Assembly

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

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

  Oil jet bolts : 27 N.M (2.8 kg-m, 20 ft-lb) 

  Fig 1: Inserting Oil Jet Dowel Pin Into Cylinder Block Dowel Pin Hole

  Courtesy of NISSAN MOTOR CO., U.S.A.

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 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 2: Identifying Thrust Bearings Installation Position

     Courtesy of NISSAN MOTOR CO., U.S.A.

• Confirm the correct main bearings are used. Refer to "PISTON-TO-CYLINDER BORE CLEARANCE ".
  Fig 3: Identifying Main Bearing

  Courtesy of NISSAN MOTOR CO., U.S.A.

• Measure d1 and d2 as shown.
• For d2, select the minimum diameter in the measuring area.
• If the difference between d1 and d2 exceeds the limit, replace the bolts for assembly.

  Limit (d1 - d2) : 0.11 mm (0.0043 in) 

  Fig 4: Checking Main Bearing Cap Bolts

  Courtesy of NISSAN MOTOR CO., U.S.A.

1. Make sure that the front marks on the main bearing beam faces the front of the engine.
2. Prior to tightening all the bearing cap bolts, place the bearing beam in its proper position by shifting the crankshaft in the axial position.
3. Lubricate the threads and seat surfaces of the bolts with new engine oil.
   Fig 5: Identifying Bearing Cap

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Tighten the bearing cap bolts in two steps in the order as shown:

   Step 1 : 35 N.M (3.6 kg-m, 26 ft-lb) 

   Step 2 : 90° - 95° degrees clockwise 

   CAUTION: Measure the tighten angle with an angle wrench. Do not measure visually.

   Tool number : KV10112100 (BT-8653-A) 

   Fig 6: Main Bearing Cap Bolts Tightening Sequence

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 7: Measuring Angle With Angle Wrench

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. After tightening the bearing cap bolts, make sure the crankshaft turns smoothly.

Standard : 0.10 - 0.25 mm (0.0039 - 0.0098 in) 

Limit : 0.30 mm (0.0118 in) 

• If beyond the limit, replace the thrust bearings and measure again. If still beyond the limit, replace the crankshaft.
  Fig 8: Checking Crankshaft End Play

  Courtesy of NISSAN MOTOR CO., U.S.A.

• Apply sealant to rear oil seal retainer using Tool. Refer to "LIQUID GASKET APPLICATION PROCEDURE ".

  Tool number : WS39930000 (-) 

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

  Rear oil seal retainer bolts : 8.8 N.M (0.90 kg-m, 78 in-lb) 

  For GI, go to GENERAL INFORMATION .

  Fig 9: Applying Sealant To Rear Oil Seal Retainer

  Courtesy of NISSAN MOTOR CO., U.S.A.
  CAUTION: Rear oil seal is replaced with the rear oil seal retainer and must be replaced as an assembly.

1. Install the snap ring into the pin-groove of the piston rear side using suitable tool.
   • Insert it fully into groove to install.
     Fig 10: Identifying Piston Pin Snap Ring Into Front Of Piston

     Courtesy of NISSAN MOTOR CO., U.S.A.
2. Install the piston to the connecting rod.
   • Heat the piston until the piston pin can be pushed in by hand without excess force [approx. 60° - 70°C (140° - 158°F)]. From the front to the rear, insert the piston pin into the piston and through the connecting rod.
     Fig 11: Heating Piston

     Courtesy of NISSAN MOTOR CO., U.S.A.
   • Assemble so that the front mark on the piston crown and the oil holes and the cylinder No. on the connecting rod are positioned as shown.
     Fig 12: Identifying Cylinder Number And Piston Grade Number

     Courtesy of NISSAN MOTOR CO., U.S.A.
3. Install the snap ring into the front of the piston pin-groove.
   • After installing, check that the connecting rod pivots smoothly on the pin.
     Fig 13: Identifying Snap Ring Into Front Of Piston Pin-Groove

     Courtesy of NISSAN MOTOR CO., U.S.A.

• Install the top ring and the second ring with the stamped surface facing upward. If the ring is not stamped it can face in either direction.
  CAUTION:

  • Be careful not to damage the piston.
  • When the piston rings are not replaced, remount the rings in their original positions.
    Fig 14: Identifying Piston Rings Expander

    Courtesy of NISSAN MOTOR CO., U.S.A.
  • When replacing the piston rings, those without punch marks can be installed either side up.
  Fig 15: Identifying Piston Rings Installation Position

  Courtesy of NISSAN MOTOR CO., U.S.A.
• Position each ring with the gap as shown, referring to the piston front mark.
  Fig 16: Identifying Piston Ring Gap Position

  Courtesy of NISSAN MOTOR CO., U.S.A.

• When installing the connecting rod bearings, apply engine oil to the bearing surface (crankshaft side). Do not apply oil to the back surface (connecting rod and cap side), but thoroughly clean it.
• When installing, align the connecting rod bearing protrusion with the notch of the connecting rod to install.
• Check that the oil holes on the connecting rod and on the corresponding bearing are aligned.
  Fig 17: Identifying Connecting Rod Bearings To Connecting Rod And Connecting Rod Cap

  Courtesy of NISSAN MOTOR CO., U.S.A.

• 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 No. on the connecting rod to install.
• Install the piston using Tool with the front mark on the piston crown facing the front of the engine.

  Tool number : EM03470000 (J-8037) 

  Fig 18: Identifying Piston And Connecting Rod Assembly Into Corresponding Cylinder

  Courtesy of NISSAN MOTOR CO., U.S.A.
  CAUTION: Be careful not to damage the crankshaft pin and cylinder wall, resulting from an interference of the connecting rod big end.

• Match the stamped cylinder number marks on the connecting rod with those on the cylinder cap for installation.
• Install the piston connecting rod assembly and cap so that the front mark on the cap and piston are facing the front of the engine.
• Lubricate the threads and seat surfaces with new engine oil.
  Fig 19: Checking Connecting Rod Bushing Oil Clearance (Small End)

  Courtesy of NISSAN MOTOR CO., U.S.A.

• Measure the outer diameter of the connecting rod cap bolt as shown.

  Outer diameter "d" of the connecting rod bolt 

  Standard : 7.90 - 8.00 mm (0.3110 - 0.3150 in) 

  Limit : 7.75 mm (0.3051 in) 

  Fig 20: Identifying Connecting Rod Cap Bolt Outer Diameter

  Courtesy of NISSAN MOTOR CO., U.S.A.

Connecting rod bolts 

Step 1 : 20 N.M (2.0 kg-m, 15 ft-lb) 

Step 2 : 90° - 95° degrees clockwise 

Tool number : KV10112100 (BT-8653-A) 

Fig 21: Measuring Connecting Rod Angle

Courtesy of NISSAN MOTOR CO., U.S.A.

• Apply engine oil to the threads and seats of the connecting rod bolts.
• After tightening the bolts, make sure that the crankshaft rotates smoothly.
• Check the connecting rod side clearance. If beyond the limit, replace the connecting rod and/or crankshaft.

  Connecting rod side clearance: 

  Standard : 0.20 - 0.35 mm (0.0079 - 0.0138 in) 

  Limit : 0.40 mm (0.0157 in) 

• Make sure that there is no foreign material on the cylinder block mating surface and the back surface of the knock sensor.
• Install the knock sensor with the connector facing the rear of the engine.
• Do not tighten the knock sensor bolt while holding the connector.
• Make sure that the knock sensor does not interfere with other parts.
  Fig 22: Identifying Knock Sensor

  Courtesy of NISSAN MOTOR CO., U.S.A.
  CAUTION: If any impact by dropping occurs to the knock sensor, replace it with new one.

Outer diameter of drift 

Pilot converter : Approx. 33 mm (1.30 in) 

Fig 23: Identifying Pilot Bushing Or Pilot Converter

Courtesy of NISSAN MOTOR CO., U.S.A.

• Install pilot converter as shown.
  Fig 24: Identifying Pilot Converter

  Courtesy of NISSAN MOTOR CO., U.S.A.