Disassembly and Assembly: Assembly

• Apply Silicone RTV Sealant.

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

• Replace the copper washers with new ones.
  Fig 1: Drain Plugs With Torque Specifications

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

1. Remove dust, dirt, and oil from the bearing mating surfaces of the cylinder block and lower cylinder block.
2. Install the thrust bearings to both sides of the No. 3 main bearing journal on the cylinder block.
   • Install the thrust bearings with the oil groove facing the crankshaft arm (outside).
     Fig 2: Identifying Thrust Bearing Attachment Points

     Courtesy of NISSAN MOTOR CO., U.S.A.
3. Install the main bearings paying attention to their position and direction.
   • The main bearing with an oil hole and groove goes on the cylinder block. The one without them goes on the lower cylinder block.
   • Only the main bearing (on the cylinder block) for No. 3 journal has different specifications.
   • Before installing the bearings, apply engine oil to the bearing friction surface (inside). Do not apply oil to the back surface, but thoroughly clean it.
   • When installing, align the bearing stopper to the notch.
   • Make sure that the oil holes on the cylinder block and those on the corresponding bearing are aligned.
     Fig 3: Identifying Main Bearings Positions

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

1. Position the crankshaft and signal plate using a positioning dowel pin, and tighten the bolts to specification.
2. Remove the dowel pin.
   CAUTION: Be sure to remove dowel pin before installing the crankshaft.
   NOTE: Dowel pins for the crankshaft and signal plate are supplied as a set for each.

• While turning the crankshaft by hand, check that it turns smoothly.
  Fig 4: Identifying Dowel Pins, Crankshaft And Signal Plate

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

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

Fig 5: Identifying Lower Cylinder Block Sealant Area

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

1. Apply new engine oil to threads and seat surfaces of the bolts.
2. Tighten bolts No. 11 - 22 only in the order as shown, to specification below.

   Step 1, bolts 11 - 22 only : 25.1 N.m (2.6 kg-m, 19 ft-lb) 

   Fig 6: Cylinder Block Bolt Tightening Sequence

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Tighten bolts No. 1 - 10 only in the order as shown, to specification below.

   Step 2, bolts 1 - 10 only : 39.2 N.m (4.0 kg-m, 29 ft-lb) 

4. Tighten bolts No. 1 - 10 only in the order as shown, to specification below.
   CAUTION: Check tightening angle. Do not make judgment by visual inspection.

   Tool number : KV 10112100 (BT-8653-A) 

   Step 3, bolts 1 - 10 only : 60° degrees rotation 

   Fig 7: Checking Angle

   Courtesy of NISSAN MOTOR CO., U.S.A.
   • Wipe off completely any protruding Silicone RTV Sealant on the exterior of engine.
   • Check crankshaft side clearance. Refer to "CRANKSHAFT SIDE CLEARANCE ".
   • After installing the bolts, make sure that the crankshaft can be rotated smoothly by hand.

• Press the oil seal between cylinder block and crankshaft with a suitable drift.
• Be careful not to touch the grease on the oil seal lip.
• Be careful not to cause scratches or burrs when pressing in the rear oil seal.
  Fig 8: Identifying Rear Oil Seal

  Courtesy of NISSAN MOTOR CO., U.S.A.
• Press in rear oil seal to the position as shown.
  Fig 9: Identifying Cylinder Block Rear End Face Dimension

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

1. Using a snap ring pliers, install the snap ring to the grooves of the piston's rear side.
   • Insert the piston pin snap ring fully into groove.
2. Install the piston to the connecting rod.
   • Using a heat gun, heat the piston [approximately 60° - 70 C° (140° - 158°F)] until the piston pin can be pushed in by hand without excessive force. 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 oil holes and the cylinder No. on the connecting rod are positioned as shown.
3. Install the piston pin snap ring into the front of the piston.
   • Check that the connecting rod moves smoothly.
     Fig 10: Identifying Piston Pin Snap Ring Into Front Of Piston

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

• Position each ring with the gap as shown, referencing the piston front mark as the starting point.
• Install the top ring and the second ring with the stamped surface facing upward.

  Stamped mark : 1K (top ring) 

  : 2K (second ring) 

  Fig 11: Identifying Ring Gap

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

• When installing the connecting rod bearings, apply engine oil to the bearing friction surface (inside). Do not apply oil to the back surface, but thoroughly clean the back.
• When installing, align the connecting rod bearing stopper protrusion with the notch of the connecting rod to install.
• Check the oil holes on the connecting rod and those on the corresponding bearing are aligned.
  Fig 12: Aligning Connecting Rod Bearing Stopper Protrusion With Notch Of Connecting Rod

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

Tool number : EM03470000 

• Rotate the crankshaft so the pin corresponding to the connecting rod to be installed is at the bottom dead center position.
• Apply engine oil sufficiently to the cylinder bore, piston, and crankshaft pin.
• Match the cylinder position number with the cylinder No. on the connecting rod for installation.
• Using tool as shown, install the piston with the front mark on the piston crown facing the front of the engine.
  Fig 13: Identifying Piston And Connecting Rod Assembly To Crankshaft

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

• Match the stamped cylinder number marks on the connecting rod with those on the cap to install.
  Fig 14: Applying Big End Inside Diameter Grade Stamped On Connecting Rod Side Face

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

Apply engine oil to the threads and seats of the connecting rod bolts.

Tool number : KV10112100 (BT-8653-A) 

Step 1 : 27.4 N.m (2.8 kg-m, 20 ft-lb) 

Step 2 : 0 N.m 

Step 3 : 19.6 N.m (2.0 kg-m, 14 ft-lb) 

Stage 2 : Rotate bolts 90° degrees 

Fig 15: Checking Connecting Rod Bolt Angle

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

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

• Install drive plate, reinforcement plate and pilot converter as shown.
• Using a drift with 33 mm (1.30 in) diameter, push pilot converter into the end of the crankshaft.
  Fig 16: Identifying Drive Plate, Reinforcement Plate And Pilot Converter

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

• 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 lower left by 45° as shown.
• Do not tighten the bolts while holding the connector.
• Make sure that the knock sensor does not interfere with other parts.
  Fig 17: Identifying Knock Sensor

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