Valve Spring: Service and Repair

Valve Stem Oil Seal and Valve Spring Replacement

^ Tools Required
- J 22794 Spark Plug Port Adapter
- J 38606 Valve Spring Compressor

Removal Procedure

Important:
^ Before removing the valve locks, rotate the engine so that the piston in the cylinder you are working on is at top dead center (TDC). This will eliminate the possibility of the valve accidentally falling inside the cylinder.
^ Loosen the spark plug, and clean any dirt and/or debris from the spark plug recess area before removing.





1. Remove the spark plug.
2. Remove the rocker arm.
3. Install the J 22794 into the spark plug port. Apply compressed air in order to hold the valves in place.
4. Install the J 38606 onto the valve spring.





5. Compress the valve spring using the J 38606.





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

Installation Procedure





1. Lubricate the valve stem with clean engine oil.
2. Install the valve stem oil seal.
3. Install the valve spring.
4. Install the valve cap.





5. Compress the valve spring using the J 38606.
6. Install the valve cap keys. If necessary, use grease in order to hold the valve cap keys in place.





7. Release the valve spring using the J 38606.
8. Ensure the valve cap keys are seated.
9. Remove the compressed air and remove the J 22794 from the spark plug port.
10. Install the rocker arm.
11. Install the spark plug.