LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 253 (Engine Mechanical) >> Cylinder Head >> Inspection After Disassembly >> Valve Guide Replacement

Valve Guide Replacement

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.

When valve guide is removed, replace with oversized (0.2 mm, 0.008 in) valve guide.

  1. To remove valve guide, heat cylinder head to 110° to 130°C (230° to 266°F) by soaking in heated oil.
    Fig 1: Heating Cylinder Head
    G00343818Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Using a suitable tool remove the valve guide.
    CAUTION: Cylinder head contains heat, when working, wear protective equipment to avoid getting burned.
    Fig 2: Removing Valve Guide
    G00343819Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Using a suitable tool ream cylinder head valve guide hole.

    Valve guide hole diameter (for service parts) 

    1. Intake and : 10.175 - 10.196 mm 
    2. exhaust (0.4006 - 0.4014 in) 
    Fig 3: Reaming Cylinder Head Valve Guide Hole
    G00343820Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in heated oil.
    Fig 4: Heating Cylinder Head
    G00343821Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Press valve guide from camshaft side to dimensions as in illustration.
    CAUTION: Cylinder head contains heat, when working, wear protective equipment to avoid getting burned.
    Fig 5: Installing Valve Guide
    G00343822Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Using a suitable tool ream cylinder head valve guide hole.

    Valve guide hole diameter (for service parts) 

    1. Intake and exhaust : 10.175 - 10.196 mm (0.4006 - 0.4014 in) 
    Fig 6: Reaming Cylinder Head Valve Guide Hole
    G00343823Courtesy of NISSAN MOTOR CO., U.S.A.