For 1990-2009 cars

### Removal Procedure

#### Tools Required

• | J 22794 Spark Plug Port Adapter

• | J 5892-D Valve Spring Compressor (Head On)

1. Remove the valve rocker arms and the pushrods at the cylinder to be serviced. Refer to Valve Rocker Arm, Push Rod, and Stud 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.

### Installation Procedure

1. Install the valve stem oil seal on to the valve guide.
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 plug to 20 N·m (15 lb ft).

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