Important: This procedure is for servicing valve springs and valve stem seals if you are not removing the cylinder head. If you are removing the cylinder head, refer to Cylinder Head Cleaning and Inspection .

Tools Required

1. Remove the valve rocker arms and the pushrods at the cylinder in order to be serviced. Refer to Valve Rocker Arm and Push Rod Replacement
2. Remove the spark plug at the cylinder to be serviced.



3. Install the J 22794 to the spark plug hole and apply compressed air in order to hold the valves in place.



4. Compress the valve spring using the J 5892-D .



5. Remove the valve stem keys.
6. Remove the valve spring cap.
7. Remove the valve spring.
8. Remove the valve stem oil seal.

Tools Required

1. Install the valve stem oil seal and seat the seal against the valve spring shim.
2. Install the valve spring.
3. Install the valve spring cap.



4. Compress the valve spring using the J 5892-D
5. Install the valve stem keys as follows:

5.1.	Use grease in order to hold the keys in place while disconnecting the J 5892-D .

5.2.	Remove the J 22794 .

5.3.	Ensure the keys seat properly in the upper groove of the valve stem.

5.4.	Tap the end of the stem with a plastic faced hammer to seat the keys, if necessary.

5.5.	Install the spark plug.

Tighten
Tighten the spark to 20 N·m(15  lb  ft )

6. Install the valve rocker arms and the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .