Valve Spring: Service and Repair

REMOVAL PROCEDURE

^ Tools Required
- J38606 Valve Spring Compressor
- J22794 Spark Plug Port Adapter
- J41512 Valve Seal Installation Tool
1. Remove the rocker arm cover.
2. Remove the rocker arm assemblies.
3. Remove the spark plugs.

IMPORTANT: Rotate the engine so that the piston in the cylinder that you are servicing is at top dead center before removing the valve keys. Do this in order to eliminate the possibility of the valve falling into the cylinder.

4. Install the J38606 into the cylinder head. Charge the cylinder with compressed air in order to hold the valves closed.
5. Use the J38606 in order to compress the valve spring.
6. Remove the valve keys.





7. Remove the valve spring. Remove the valve cap.
8. Pry up on the bottom of the seal in order to remove the valve stem oil seal.

INSTALLATION PROCEDURE
^ Tools Required
^ J38606 Valve Spring Compressor
^ J22794 Spark Plug Port Adapter
^ J41512 Valve Seal Installation Tool
1. Place the oil seal over the valve stem so that the seal begins to contact the valve guide.

IMPORTANT: Use hand pressure only when installing the valve stem oil seal using J42863. Using too much force may cause damage to the oil seal and possibly lead to excessive oil consumption.

2. Use the J41512 in order to push the valve stem seal over the guide.
3. Use the J38606 in order to install the valve spring. Install the valve cap.





4. Install the valve keys.
5. Repeat the previous steps for each valve.
6. Depressurize the cylinder.
7. Remove the J22794.
8. Install the spark plug.
9. Install the rocker arm assemblies.
10. Install the rocker arm cover.