Disassembly and Assembly: Assembly

WARNING: This page is about a different car, the 2012 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 "INSPECTION AFTER DISASSEMBLY ".
When valve seat is removed, install it. Refer to "INSPECTION AFTER DISASSEMBLY ".
Install valve oil seals using Tool.
Tool number: - (J-39386)

Height "H" (Without valve spring seat installed)

Fig 1: Pressing Valve Oil Seal To Specified Height Using Tool
Courtesy of NISSAN NORTH AMERICA, INC.
Install valve spring seat.
Install valves.
- Install it in the original position.
  NOTE: Larger diameter valves are for intake side.
Install valve spring (uneven pitch type).
- Install narrow pitch end (paint mark) to cylinder head side (valve spring seat side).
  Intake and exhaust: 14.3 - 14.9 mm (0.563 - 0.587 in)
  
  Fig 2: Identifying Paint Mark And Wide And Narrow Pitch Area
  Courtesy of NISSAN NORTH AMERICA, INC.
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-B)
  
  : KV10115900 (J-26336-20)
  
  Fig 3: Compressing Valve Spring Using Tool Attachment
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  CAUTION: When working, take care not to damage valve lifter holes or valve stems.
- 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 using suitable drift.
  Standard press-fit height "H"
  
  : 38.1 - 39.1 mm (1.500 - 1.539 in)
  
  Fig 4: Identifying High Strength Locking Sealant Application Area
  Courtesy of NISSAN NORTH AMERICA, INC.
  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.
Install spark plug.