Disassembly And Assembly: Assembly

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

When valve guide is removed, install it. Refer to "VALVE GUIDE REPLACEMENT ".
When valve seat is removed, install it. Refer to "VALVE SEAT REPLACEMENT ".
Install valve oil seals using Tool.
Tool number : - (J-39386)

Height "H" (Without valve spring seat installed)

Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
Install valve spring seat.
Install valves.
- Install it in the original position.
  NOTE: Larger diameter valves are for intake side.
  
  Fig 1: Identifying Valve Oil Seal Height
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install valve spring (uneven pitch type).
- Install narrow pitch end (paint mark) to cylinder head side (valve spring seat side).
- Intake side and exhaust side valve springs are different.
  Install them referring to the following paint mark collar.
  
  Paint mark collar
  
  Intake : White
  
  Exhaust : White
  
  Fig 2: Identifying Paint Mark
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install valve spring retainer.
Install valve collet.
- Compress valve spring using Tool, attachment and adapter using Tool. Install valve collet with magnet hand.
  Tool numbers : KV10109220 (-)
  
  : KV10116200 (J-26336-A)
  
  : KV10115900 (J-26336-20)
  
  CAUTION: When working, take care not to damage valve lifter holes or valve stems.
  
  Fig 3: Compressing Valve Spring Using Tool Attachment
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Tap valve stem edge lightly with plastic hammer after installation to check its installed condition.
Install valve lifter.
- Install it in the original position.
Install spark plug tube.
- Press-fit spark plug tube as follows:
1. Remove old liquid gasket from cylinder head mounting hole.
2. Apply sealant to area within approximately 12 mm (0.47 in) from edge of spark plug tube press-fit side.
  Use Genuine High Strength Locking Sealant or equivalent. Refer to "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".
3. Press-fit spark plug tube so that its height "H" is as specified in the figure using suitable drift.
  Standard press-fit height "H"
  
  : 38.1 - 39.1 mm (1.500 - 1.539 in)
  CAUTION:
  - When press-fitting, take care not to deform spark plug tube.
  - After press-fitting, wipe off liquid gasket protruding onto cylinder-head upper face.
    
    Fig 4: Applying Liquid Gasket From Edge Of Spark Plug Tube Press-Fit Side
    Courtesy of NISSAN MOTOR CO., U.S.A.
Install spark plug.