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Home >> Nissan-Datsun >> 2005 >> Sentra SE-R >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Engine Mechanical (Qr25DE) >> Oil Seal >> Removal and Installation of Valve Oil Seal >> Removal

Removal and Installation of Valve Oil Seal: Removal

  1. Remove camshaft and valve lifter. Refer to REMOVAL .
  2. Rotate crankshaft, and set piston whose oil seal is to removed to top dead center. This prevents valve from dropping inside cylinder.
    CAUTION: When rotating crankshaft, be careful to avoid scarring the front cover with the timing chain.
  3. Remove valve collet, valve spring retainer and valve spring using Tool.
    Fig 1: Removing Valve Collet, Valve Spring Retainer & Valve Spring
    G02454020Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove valve oil seal using Tool.
    Fig 2: Removing Valve Oil Seal
    G02454021Courtesy of NISSAN MOTOR CO., U.S.A.
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