Cylinder Head Disassemble

Tools Required

• J 8062  Valve Spring Compressor. See Special Tools and Equipment .
• J 42037  Valve Spring Compressor Adapter. See Special Tools and Equipment .
• J 38820  Valve Stem Seal Remover/Installer. See Special Tools and Equipment .

Fig 1: View Of Spark Plugs
Courtesy of GENERAL MOTORS CORP.
1. Remove the spark plugs.
Fig 2: Installing J8062 & J42037 To Compress Valve Spring
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  to compress the valve spring. See Special Tools and Equipment .
Fig 3: View Of Valve Keys
Courtesy of GENERAL MOTORS CORP.
3. Remove the valve keys.
Fig 4: View Of Valve Springs & Retainer
Courtesy of GENERAL MOTORS CORP.
4. RemoveJ 8062  and J 42037  . See Special Tools and Equipment .
5. Remove the valve spring retainer and valve spring.
Fig 5: View Of Valves
Courtesy of GENERAL MOTORS CORP.
6. Remove the valves.
Fig 6: View Of J 38820 & Valve Seals
Courtesy of GENERAL MOTORS CORP.
7. Use J 38820  to remove the valve seals. See Special Tools and Equipment .
Fig 7: View Of Water Jacket Plug
Courtesy of GENERAL MOTORS CORP.
8. Inspect the water jacket plug, for leakage. Replace if necessary.
Fig 8: View Of Inner Oil Gallery Plug
Courtesy of GENERAL MOTORS CORP.
9. Inspect the (inner) oil gallery plug, for leakage. Replace if necessary.
Fig 9: View Of End Oil Gallery Plugs
Courtesy of GENERAL MOTORS CORP.
10. Inspect the (end) oil gallery plugs, for leakage. Replace if necessary.