LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 356 (Engine Mechanical - 3.1L V6 - VIN (J) (On-Vehicle)) >> Repair Instructions >> Valve Stem Oil Seal and Valve Spring Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Before you remove the valve locks, rotate the engine so that the piston in the cylinder you are working on is at Top Dead Center (TDC). This will eliminate the possibility of the valve accidentally falling inside the cylinder.
  • Break the spark plug loose, and clean any dirt and debris from the spark plug recess area before removing.
  • Do not remove the spark plug when the engine is hot.
  1. Remove the spark plug. Refer to SPARK PLUGS
  2. Install the J 22794 into the spark plug port. Apply compressed air in order to hold the valves in place.
    Fig 1: Tool J22794 To Spark Plug Port
    G01763590Courtesy of GENERAL MOTORS CORP.
  3. Remove the rocker arm. Refer to Valve Rocker Arm and Push Rod Replacement .
  4. Install the J 38606 on the valve spring.
  5. Compress the valve spring with the J 38606.
    Fig 2: Compressing The Valve Spring
    G01763591Courtesy of GENERAL MOTORS CORP.
  6. Remove the valve locks.
  7. Remove the valve cap.
  8. Remove the valve spring.
  9. Inspect the valve spring for damage. Replace the spring if it is damaged. Refer to CYLINDER HEAD CLEANING AND INSPECTION .
    Fig 3: Valve Components
    G01763592Courtesy of GENERAL MOTORS CORP.
  10. Remove the spring seat/valve stem oil seal.
scientia non olet · About LEMON Manuals