Cylinder Head Disassemble

Tools Required

• J 8062:  Valve Spring Compressor. See Special Tools and Equipment .
• J 36017:  Valve Guide Seal Remover. See Special Tools and Equipment .
• J 43963:  Valve Spring Compressor (off car). See Special Tools and Equipment .

1. Remove the coolant air bleed hose fitting.
   Fig 1: Identifying Cylinder Head Air Bleed Tube

   Courtesy of GENERAL MOTORS CORP.
   IMPORTANT: Ensure that the valve train components are kept together and identified in order for proper re-installation in their original position.
2. Using the J 8062  and the J 43963  , compress the valve spring.
3. Remove the valve keys.
4. Slowly release the J 8062  and the J 43963  from the valve spring assembly.
5. Remove the retainer.
   Fig 2: Identifying Valve Spring Retainers

   Courtesy of GENERAL MOTORS CORP.
Fig 3: View Of Valve Springs
Courtesy of GENERAL MOTORS CORP.
NOTE: Do not damage the valve guide. Remove any burrs that have formed at the key groove by chamfering the valve stem with an oil stone or a file.
6. Remove the spring.
7. Remove the valve seal. Use the J 36017  . Do not reuse.
   Fig 4: View Of Valve Seals

   Courtesy of GENERAL MOTORS CORP.
8. Remove the valve.
9. Remove the remaining valves.
   Fig 5: Identifying Engine Valves

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10. Remove the cylinder head plugs.
Fig 6: View Of Cylinder Head Plugs
Courtesy of GENERAL MOTORS CORP.