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Home >> Nissan-Datsun >> 2005 >> Altima SE-R, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - VQ35DE >> Cylinder Block >> Disassembly and Assembly >> Assembly

Disassembly and Assembly: Assembly

  1. Blow out the coolant and oil passages and cylinder bore to remove any foreign materials.
    CAUTION: Use goggles to protect your eyes.
  2. Apply liquid gasket and install each plug into the cylinder block.
  3. Install the oil jets.
    • Insert the oil jet dowel pin into the cylinder block dowel pin hole, and tighten the bolts.
      Fig 1: Installing Oil Jets
      G02520814Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Install the main bearings and the thrust bearings.
    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: Installing Main Bearings And Thrust Bearings
        G02520815Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Set the upper main bearings in their proper positions on the cylinder block.
  6. Instructions for the re-use of the main bearing cap bolts.
    • A plastic zone tightening method is used for tightening the main bearing cap bolts. 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: Measuring Main Bearing Cap Bolts
      G02520817Courtesy of NISSAN MOTOR CO., U.S.A.
  7. After installing the crankshaft, lower main bearings, main bearing caps, main bearing beam, and bearing cap bolts. Tighten the bearing cap bolts in the numerical order as shown.
    Fig 5: Main Bearing Caps Tightening Sequence
    G02520818Courtesy 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. After tightening the bearing cap bolts, make sure the crankshaft turns smoothly.
    4. Lubricate the threads and seat surfaces of the bolts with new engine oil.
    5. Tighten the bolts in two stages:
      Fig 6: Identifying Bearing Cap Bolts
      G02520819Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: Measure the tighten angle in stage 2 with an angle wrench. Do not measure visually.
    1. Stage 1: 32 - 38 N.m (3.3 - 3.9 kg-m, 24 - 28 ft-lb)
    2. Stage 2: 90° - 95° degrees clockwise

      Tool number: KV10112100 (BT-8653-A) 

      Fig 7: Locating Bearing Cap Bolts
      G02520820Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Measure crankshaft end play.
    • If beyond the limit, replace the bearing with a new one.

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

      Limit : 0.30 mm (0.0118 in) 

      Fig 8: Measuring Crankshaft End Play
      G02520821Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Install the rear oil seal retainer.
    • Apply sealant to rear oil seal retainer as shown.

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

      Rear oil seal retainer bolts : 8.2 - 9.3 N.m (0.83 - 0.95 kg-m, 72 - 82 in-lb) 

      Fig 9: Applying Sealant To Rear Oil Seal Retainer
      G02520822Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Install the piston to the connecting rod.
    1. Using suitable snap ring pliers, install the snap ring into the pingroove of the piston rear side.
    • Insert it fully into groove to install.
      Fig 10: Installing Piston To Connecting Rod
      G02520823Courtesy of NISSAN MOTOR CO., U.S.A.
  11. 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° to 158°F)]. From the Front to the rear, insert the piston pin into the Piston and through the connecting rod.
      Fig 11: Identifying Piston Heater
      G02520824Courtesy 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 Front Mark On Piston
      G02520825Courtesy of NISSAN MOTOR CO., U.S.A.
  12. 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: Installing Snap Ring
      G02520826Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Using a piston ring expander, install the piston rings.
    CAUTION:
    • Be careful not to damage the piston.
    • When the piston rings are not replaced, remount the rings in their original positions.
    • When replacing the piston rings, those without punchmarks can be mounted either side up.
    • Position each ring with the gap as shown, referring to the piston Front mark.
    • 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.
    Fig 14: Installing Piston Rings
    G02520827Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 15: Positioning Ring Gap
    G02520828Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Install the connecting rod bearings to the connecting rod and the connecting rod cap.
    • 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 16: Installing Connecting Rod Bearings To Connecting Rod
      G02520829Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Install the piston and connecting rod assembly into the corresponding cylinder.
    • 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 with the Front mark on the piston crown facing the Front of the engine, using a suitable tool.
      Fig 17: Installing Piston Front Mark On Piston Crown
      G02520830Courtesy 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.
  16. Install the connecting rod cap.
    • 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 18: Installing Connecting Rod Cap
      G02520831Courtesy of NISSAN MOTOR CO., U.S.A.
  17. Check the connecting rod cap bolts before reusing, then install in their original position in the connecting rod. The bolts should screw in smoothly by hand.
    • 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 19: Measuring Outer Diameter Of Connecting Rod Cap Bolt
      G02520832Courtesy of NISSAN MOTOR CO., U.S.A.
  18. Tighten the connecting rod nuts in two stages:
    1. Stage1 : 19 - 21 N.m (1.9 - 2.1 kg-m, 14 - 15 ft-lb) 
    2. Stage2 : 90° - 95° degrees clockwise 
      CAUTION: Always use either an angle wrench or protractor. Avoid tightening based on visual check alone.

      Tool number: KV10112100 (BT-8653-A) 

      Fig 20: Installing Connecting Rod Nuts
      G02520833Courtesy of NISSAN MOTOR CO., U.S.A.
      • Apply engine oil to the threads and seats of the connecting rod bolts and nuts.
      • After tightening the nuts, 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) 

    3. Install the knock sensor.
      • 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 bolts while holding the connector.
      • Make sure that the knock sensor does not interfere with other parts.
        Fig 21: Installing Knock Sensor
        G02520834Courtesy of NISSAN MOTOR CO., U.S.A.
        CAUTION: If any impact by dropping occurs to the knock sensor, replace it with new one.
        Knock sensor bolt: 16 - 26 N.m (1.6 - 2.7 kg-m, 12 - 20 in-lb)
    4. Install the pilot bushing (M/T) or converter (A/T) as shown.
      Fig 22: Installing Pilot Bushing (M/T) Or Converter (A/T)
      G02520835Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Install the flywheel (M/T), if equipped.
      • When installing flywheel to crankshaft, be sure to correctly align crankshaft side dowel pin and flywheel side dowel pin hole.

        Flywheel bolts : 83 - 93 N.m (8.5 - 95 kg-m, 61 - 69 ft-lb) 

        Fig 23: Aligning Crankshaft Side Dowel Pin And Flywheel Side Dowel Pin Hole
        G02520836Courtesy of NISSAN MOTOR CO., U.S.A.
    6. Install the drive plate (A/T), if equipped.
      • Install the drive plate and reinforce plate in the direction as shown.
      • Align dowel pins of crankshaft rear and drive plate with pin holes of each part.
      • Secure the crankshaft using a ring gear stopper.
      • Tighten the drive plate bolts in one or two steps.

        Drive plate bolts : 83 - 93 N.m (8.5 - 95 kg-m, 61 - 69 ft-lb) 

        Fig 24: Installing Drive Plate (A/T)
        G02520837Courtesy of NISSAN MOTOR CO., U.S.A.
    7. Install the cylinder head. Refer to "REMOVAL AND INSTALLATION ".
    8. Install the timing chain. Refer to "INSTALLATION ".
    9. Install the oil pan. Refer to "REMOVAL AND INSTALLATION ".
    10. Remove the engine From the stand and install the engine assembly into the vehicle. Refer to "REMOVAL AND INSTALLATION ".
    11. Assembly of the remaining parts is in the reverse order of disassembly.
    12. Fill the engine with the specified oil and coolant. Refer to " FLUIDS AND LUBRICANTS ".
      CAUTION: Wait at least 30 minutes for the sealant to set-up before filling the engine with fluids and running it.
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