Cobalt L4-2.0L SC VIN P (2005)
Valve Spring: Service and Repair
Valve Stem Oil Seal and Valve Spring Replacement
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Tools Required
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J 43649 Valve Spring Compressor
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J 36017 Valve Guide Seal Remover
Removal Procedure
1. Remove the camshaft.
2. Remove the camshaft roller followers.
3. Install the J 43649 to the cylinder head.
4. Remove the spark plugs.
5. Install an air hose adaptor into the spark plug hole.
6. Pressurize the cylinder to 690 kPa (100 psi).
7. Compress the valve spring.
8. Remove the valve spring keepers.
9. Remove the valve spring.
