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Disassembly and Assembly: Disassembly

WARNING: This page is about a different car, the 2005 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove spark plug.
  2. Remove valve lifter.
    • Identify installation positions, and store them without mixing them up.
  3. Remove valve collet.
    • Compress valve spring and remove valve collet with magnet hand using Tool.
      CAUTION: When working, take care not to damage valve lifter holes.

      Tool numbers: KV10109220 (-) 

      : KV10116200 (J-26336-A) 

      : KV10115900 (J-26336-20) 

      Fig 1: Removing Valve Collet
      G03606456Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove valve spring retainer, valve spring and valve spring seat.
  5. Push valve stem to combustion chamber side, and remove valve.
    • Identify installation positions, and store them without mixing them up.
  6. Remove valve oil seals using Tool.

    Tool number: KV10107902 (J-38959) 

    Fig 2: Removing Valve Oil Seals Using Tool
    G03606457Courtesy of NISSAN MOTOR CO., U.S.A.
  7. If valve seat must be replaced, refer to "VALVE SEAT REPLACEMENT ".
  8. If valve guide must be replaced, refer to "VALVE GUIDE REPLACEMENT ".
  9. Remove spark plug tube -->, as necessary.
    • Using suitable tool, pull spark plug tube out of cylinder head.
      CAUTION:
      • Take care not to damage cylinder head.
      • Once removed, spark plug tube will be deformed and cannot be reused. Do not remove it unless absolutely necessary.
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