33. Cylinder Head Disassemble

Cylinder Head Disassemble

Special Tools
* EN-8062 - Valve Spring Compressor
* EN-36017 - Valve Seal Remover
* EN-43963 - Valve Spring Compressor (off car)

For equivalent regional tools, refer to Special Tools (Special Tools).




1. Remove the coolant air bleed hose fitting (1).




2. Remove the intake camshaft position sensor (1) and bolt.





Warning

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.

Caution: Do not compress the valve springs to less than 24.0 mm (0.943 in). Contact between the valve spring retainer and the valve stem oil seal can cause potential valve stem oil seal damage.

Note: Ensure that the valve train components are kept together and identified in order for proper installation in their original position.

3. Perform the following procedure to remove the valve keys, springs, and retainers:

1. Using the EN-8062 - compressor and the EN-43963 - compressor, compress the valve spring.
2. Remove the valve keys.
3. Slowly release the EN-8062 - compressor and the EN-43963 - compressor from the valve spring assembly.
4. Remove the retainer.




4. Remove the springs.





Caution: 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.

5. Using EN-36017 - remover, remove the valve seals. Discard the seals, do not reuse.




6. Remove the valves.




7. Remove the cylinder head plugs.