LaCrosse V6-3.8L (2009)
Valve Spring: Service and Repair
Valve Stem Oil Seal and Valve Spring Replacement
Tools Required
*
J 23590 Spark Plug Port Adapter
*
J 38606 Valve Spring Compressor
*
J 42863 Valve Stem Seal Installation Tool
Removal Procedure
1. Remove the left or the right valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side (See: Valve Cover/Service and
Repair/Valve Rocker Arm Cover Replacement - Left Side) or Valve Rocker Arm Cover Replacement - Right Side (See: Valve Cover/Service and
Repair/Valve Rocker Arm Cover Replacement - Right Side).
Important: Rotate the engine so that the piston in the cylinder being worked on is at top dead center before removing the valve locks.
This will eliminate the possibility of the valve accidentally falling inside the cylinder.
2. Remove the valve rocker arms and the push rods. Refer to Valve Rocker Arm and Push Rod Replacement (See: Rocker Arm Assembly/Service
and Repair).
3. Remove the spark plug. Refer to Spark Plug Replacement (See: Tune-up and Engine Performance Checks/Spark Plug/Service and Repair).
4. Install the J 23590 to the spark plug port and apply compressed air in order to hold the valves closed.
5. Install the J 38606 on the valve spring.
