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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 197 (Engine Mechanical - 1.8L) >> Cylinder Head >> Inspection >> Valve Guide Replacement

Valve Guide Replacement

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
  1. To remove valve guide, heat cylinder head to 110-130°C (230-266°F).
    Fig 1: Heating Cylinder Head In Oil
    G02007626Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Drive out valve guide with a press [under a 20 kN (2 ton, 2.2 US ton, 2.0 Imp ton) pressure] or hammer and suitable tool.
    Fig 2: Driving Out Valve Guide With Hammer
    G02007627Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Ream cylinder head valve guide hole.
    Fig 3: Reaming Cylinder Head Valve Guide Hole
    G02007628Courtesy of NISSAN MOTOR CO., U.S.A.

    Valve guide hole diameter (for service parts) 

    Intake & Exhaust: 9.685 - 9.696 mm (0.3813-0.3817 in) 

  4. Heat cylinder head to 110-130°C (230-266°F) and press service valve guide into cylinder head.

    Projection "L": 11.5 -11.7 mm (0.453 - 0.461 in) 

    Fig 4: Measuring Projection L
    G02007629Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Ream valve guide.

    Finished size: 

    Intake & Exhaust: 5.500 - 5.515 mm (0.2165-0.2171 in) 

    Fig 5: Reaming Valve Guide
    G02007630Courtesy of NISSAN MOTOR CO., U.S.A.