LaCrosse FWD L4-2.4L (2011)
6. Install the EN-43649-10 - adaptor set (1) to the front and rear of the cylinder head.
7. Install the cross bars and locks (2) of the EN-43649 - compressor to the valve spring compressor adaptors.
8. Remove the spark plugs. Refer to Spark Plug Replacement (See: Tune-up and Engine Performance Checks/Spark Plug/Service and Repair).
9. Install an air hose adapter into the spark plug hole.
10. Attach an air hose to the adapter and pressurize the cylinder to 690 kPa (100 psi).
11. Compress the valve spring using the valve spring compressor (3).
12. Remove the valve spring keepers (1).
13. Remove the valve spring (3) and retainer (2).
