Disassemble Procedure
Valve Rocker Arm (1) - Remove
Hydraulic Valve Lash Adjuster (1) - Remove
Perform the following procedure to remove the valve keys, springs, and retainers:
- Using the EN-50517 Valve Spring Compressor and the EN-50517 - 20 Valve Spring Compressor Adapter, compress the valve spring.
- Valve Stem Key (1) - Remove
- Slowly release the compression from the valve spring assembly.
- Valve Spring Retainer (2) - Remove
Valve Spring (1) - Remove
- 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.
Valve Stem Oil Seal (1) - Remove and DISCARD
- NOTE:
Replace the valves, if required.
Exhaust Valve (1) - Remove
- Intake Valve (2) - Remove
Remove the cylinder head plug (1), (2), (3), (4), and (5).
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.
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.
Ensure that the valve train components are kept together and identified in order for proper installation in their original position.