Cylinder Head Disassemble

Tools Required

• J 8062  Valve Spring Compressor
• J 42037  Valve Spring Compressor Adapter
• J 38820  Valve Stem Seal Remover/Installer

1. Remove the spark plugs.
   Fig 1: Removing Spark Plugs

   Courtesy of GENERAL MOTORS CORP.
   IMPORTANT: Organize the valve train components when disassembling so they can be reassembled in the same location and matched up with the same components as previously installed.
2. Use J 8062 and J 42037 compress the valve spring.
Fig 2: Compressing Valve Spring
Courtesy of GENERAL MOTORS CORP.
3. Remove the valve keys.
Fig 3: Removing Valve Keys
Courtesy of GENERAL MOTORS CORP.
4. Remove J 8062 and J 42037.
5. Remove the valve spring retainer and valve spring.
Fig 4: Removing Valve Spring Retainer And Valve Spring
Courtesy of GENERAL MOTORS CORP.
6. Remove the valves.
Fig 5: Removing Valves
Courtesy of GENERAL MOTORS CORP.
7. Use J 38820 to remove the valve seals.
Fig 6: Removing Valve Seals
Courtesy of GENERAL MOTORS CORP.
8. Inspect the water jacket plug, for leakage. Replace if necessary.
Fig 7: Inspecting Water Jacket Plug
Courtesy of GENERAL MOTORS CORP.
9. Inspect the (inner) oil gallery plug, for leakage. Replace if necessary.
Fig 8: Inspecting (Inner) Oil Gallery Plug
Courtesy of GENERAL MOTORS CORP.
10. Inspect the (end) oil gallery plugs, for leakage. Replace if necessary.
Fig 9: Inspecting (End) Oil Gallery Plugs
Courtesy of GENERAL MOTORS CORP.