Cylinder Head: Installation

WARNING: This page is about a different car, the 2002 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Before installing rear timing chain case, remove old liquid gasket from mating surface using a scraper.
- Also remove old liquid gasket from mating surface of cylinder block.
  
  Fig 1: Removing Old Liquid Gasket
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Remove old liquid gasket from the bolt hole and thread.
  
  Fig 2: Removing Old Liquid Gasket From Bolt Hole And Thread
  Courtesy of NISSAN MOTOR CO., U.S.A.
Before installing cam bracket, remove old liquid gasket from mating surface using a scraper.

Fig 3: Removing Old Liquid Gasket From Mating Surface Using Scraper
Courtesy of NISSAN MOTOR CO., U.S.A.
Before installing the cylinder head gasket, be sure that No. 1 cylinder is at TDC.
- At this time, the crankshaft key should face toward the right bank.
  
  Fig 4: Locating Crankshaft Key
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install cylinder heads with new gaskets.
- Do not rotate crankshaft and camshaft separately, or valves will strike piston heads.
  
  Fig 5: Identifying Cylinder Head Gasket RH And LH
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  CAUTION: Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between d1 and d2 exceeds the limit, replace them with new ones.
  
  Limit (d1 - d2):
  
  0.11 mm (0.0043 in)
- Lubricate threads and seat surfaces of the bolts with new engine oil.
  
  Fig 6: Locating Cylinder Head Bolt Measuring Point
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install cylinder head outside bolts.
- Tightening procedure
  1. Tighten all bolts to 98 N.m (10 kg-m, 72 ft-lb).
  2. Completely loosen all bolts.
  3. Tighten all bolts to 34 to 44 N.m (3.5 to 4.5 kg-m, 25 to 33 ft-lb).
  4. Turn all bolts 90 to 95 degrees clockwise.
  5. Turn all bolts 90 to 95 degrees clockwise.
- Tighten in numerical order shown in the figure.
  
  Fig 7: Installing RH Cylinder Head Outside Bolts
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 8: Installing LH Cylinder Head Outside Bolts
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 9: Tightening Torque Of Bolts
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install camshaft chain tensioners on both sides of cylinder head.

Fig 10: Installing Camshaft Chain Tensioners
Courtesy of NISSAN MOTOR CO., U.S.A.
Install exhaust and intake camshafts and camshaft brackets.
- Intake camshaft has a drill mark on camshaft sprocket mounting flange. Install it on the intake side.
  
  Fig 11: Identifying Drill Mark On Intake Camshaft
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Identification marks are present on camshafts.
  
  Fig 12: Locating Identification Mark On Camshaft
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 13: Identification Mark On Camshaft Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Position camshaft
  RH exhaust camshaft dowel pin at about 10 o'clock
  
  LH exhaust camshaft dowel pin at about 2 o'clock
  
  Fig 14: Locating Dowel Pin
  Courtesy of NISSAN MOTOR CO., U.S.A.
Before installing camshaft brackets, apply sealant to mating surface of No. 1 journal head.
- Use Genuine RTV silicone sealant or equivalent.
- Refer to " POSITION FOR APPLYING LIQUID GASKET ".
- Install camshaft brackets in their original positions. Align stamp mark as shown in the figure.
- If any part of valve assembly or camshaft is replaced, check valve clearance according to reference data.
  
  Fig 15: Identifying RH Side Stamp Mark
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  After completing assembly check valve clearance. Refer to " CHECKING " and " ADJUSTING " in "VALVE CLEARANCE".
  
  Reference data valve clearance (Cold):
  
  Intake
  
  0.26 - 0.34 mm (0.010 - 0.013 in)
  
  Exhaust
  
  0.29 - 0.37 mm (0.011 - 0.015 in)
- Lubricate threads and seat surfaces of camshaft bracket bolts with new engine oil before installing them.
  
  Fig 16: Identifying Camshaft Bracket Exhaust And Intake Side
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Tighten the camshaft brackets in the following steps.
  
  Fig 17: Camshaft Bracket Tightening Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 18: Locating RH Intake Camshaft Bracket
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 19: Locating LH Intake Camshaft Bracket
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install intake valve timing control solenoid valves.

Fig 20: Locating Intake Valve Timing Control Solenoid Valves
Courtesy of NISSAN MOTOR CO., U.S.A.
Install O-rings to cylinder block.

Fig 21: Installing Old O-Rings With New One To Cylinder Block
Courtesy of NISSAN MOTOR CO., U.S.A.
Install O-rings to cylinder head.

Fig 22: Locating Right Bank And Left Bank O- Ring
Courtesy of NISSAN MOTOR CO., U.S.A.
Apply sealant to the hatched portion of rear timing chain case.
- Apply continuous bead of liquid gasket to mating surface of rear timing chain case.
  Refer to "POSITION FOR APPLYING LIQUID GASKET ".
- Before installation, wipe off the protruding sealant.
Align rear timing chain case with dowel pins, then install on cylinder head and block.
Tighten rear chain case bolts.
1. Tighten bolts in numerical order shown in the figure.
2. Repeat above step a.
Reinstall all removed parts in reverse order of removal.

Fig 23: Tightening Bolts In Numerical Order
Courtesy of NISSAN MOTOR CO., U.S.A.