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Disassembly and Assembly: Disassembly

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove spark plug with spark plug wrench (commercial service tool).
  2. Remove valve lifter.
    • Identify installation positions, and store them without mixing them up.
  3. Remove valve collet.
    • Compress valve spring with valve spring compressor, attachment and adapter [SST]. Remove valve collet with magnet hand.
    CAUTION: When working, take care not to damage valve lifter holes.
    Fig 1: Compress Valve Spring With Valve Spring Compressor, Attachment & Adapter [SST]
    G02400926Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove valve spring retainer, valve spring and valve spring retainer.
  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 valve oil seal puller [SST].
    Fig 2: Removing Valve Oil Seals Using Valve Oil Seal Puller
    G02400927Courtesy 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 pair of pliers, 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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