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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Engine Mechanical - 3.8L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Cylinder Head Disassemble

Cylinder Head Disassemble

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

J 38606  Valve Spring Compressor J 38606

    IMPORTANT: During disassembly, ensure the valve train components are kept together and identified so they can be reinstalled in their original locations and with the same mating surfaces as when removed.
  1. Use J 38606  to compress the valve spring.
  2. Fig 1: Using J 38606 Compress Valve Spring
    GM187057Courtesy of GENERAL MOTORS CORP.
  3. Remove the valve keys.
  4. Remove the valve cap and spring.
  5. Remove the valve stem oil seal by prying up on the bottom.
  6. Fig 2: Valve Stem Oil Seal, Cap, Spring & Keys
    GM42226Courtesy of GENERAL MOTORS CORP.