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Disassembly And Assembly: Disassembly

WARNING: This page is about a different car, the 2004 Nissan Titan. 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). Refer to SPARK PLUG (PLATINUM-TIPPED TYPE) .
  2. Remove valve lifter.
    • Confirm installation point and keep parts in an organized way to avoid mixing them up.
  3. Using tool remove valve collet.
    Fig 1: Removing Valve Collet
    G00343809Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Tool number: KV10116200 (J-26336-B) 
    2. KV10115900 (J-26336-20) 
    3. KV10109230 ( - ) 
    CAUTION: When working, take care not to damage valve lifter holes.
  4. Remove valve spring retainer, valve spring and valve spring seat.
  5. Push valve stem to combustion chamber side, and remove valve.
    • Inspect valve guide clearance before removal. Refer to VALVE GUIDE CLEARANCE .
    • Confirm installation point and keep parts in an organized way to avoid mixing then up.
  6. Using tool remove valve oil seal.
    1. Tool number: KV10107902 (J-38959) 
  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 a suitable tool, pull spark plug tube out of cylinder head.
    CAUTION:
    • Take care not to damage cylinder head.
    • Once removed, a spark plug tube will be deformed and cannot be reused. Do not remove it unless absolutely necessary.
    Fig 2: Removing Spark Plug Tube
    G00343810Courtesy of NISSAN MOTOR CO., U.S.A.
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