Tools Required

J 8062  Valve Spring Compressor - Head Off

Fig 1: Compressing Valve Springs Using J 8062
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.
CAUTION: Compressed valve springs have high tension against the valve spring compressor. Valve springs that are not properly compressed by or released from the valve spring compressor can be ejected from the valve spring compressor with intense force. Use care when compressing or releasing the valve spring with the valve spring compressor and when removing or installing the valve stem keys. Failing to use care may cause personal injury.
IMPORTANT: Mark, sort, or organize components for return to their original locations.
1. Use J 8062  in order to compress the valve springs.
Fig 2: View Of Valve & Components
Courtesy of GENERAL MOTORS CORP.
2. Remove the valve stem keys (220).
3. Release and remove J 8062  .
4. Remove the cap (219).
5. Remove the valve spring (218).
6. Remove the valve stem oil seal (217) from the valve guide.
7. Remove the valve rotator (216).
IMPORTANT: In order to prevent damage to the valve guide, small burrs on the valve tip and at the stem key groove that interfere with the valve removal can be lightly filed with a fine file or stone to facilitate valve removal.
8. Remove the valve (232).
Fig 3: View Of ECT Sensor
Courtesy of GENERAL MOTORS CORP.
9. Disconnect the engine coolant temperature (ECT) sensor from the bracket.
10. Remove the ECT sensor from the cylinder head.
11. Remove the ECT sensor bracket and bolt.
Fig 4: View Of Cylinder Head Coolant Hole Plug
Courtesy of GENERAL MOTORS CORP.
12. Remove the cylinder head coolant hole plug from the cylinder head.