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





1. Remove the spark plugs.
2. Remove the valve rocker arm and pushrod assembly.





3. Install the J 22794 in the spark plug hole.
4. Attach an air hose to the J 22794.
5. Apply compressed air into the cylinder being serviced.

Important: It maybe necessary to lightly tap the valve spring retainer with a hard rubber mallet to loosen the valve keys.





6. Using the J 38606, compress the valve spring.
7. Using a magnet or equivalent, remove the valve keys.
8. Remove the J 38606.





9. Remove the retainer (2), valve spring (3), valve seal, and shim (4).

Installation Procedure





1. Apply a small amount of clean grease to the tip of the valve.
2. Install the valve and shim (4).
3. Using the J 38606, compress the valve spring (3) and retainer (2).
4. Install the valve spring assembly.
5. Apply a small amount clean grease in the grooves for the valve keys.
6. Using a small magnet or equivalent, install the keys.

Important: Ensure that the valve keys are properly seated before releasing the special tool.





7. Remove the J 38606 from the valve assembly.





8. Remove the J 22794.





9. Install the spark plugs.
10. Install the valve rocker arm and pushrod assembly.