You need to remove the valve rocker arm cover, the required valve rocker arms, and the required spark plugs. Then you can install the J 22794 into the spark plug hole, connect a shop air supply hose, apply compressed air, and remove a bolt from a valve rocker arm. Then you can install a flat washer and the bolt in the valve rocker arm bolt hole. After that, you can compress the valve spring, remove the valve keys, and release the valve spring tension. Then you can remove the J 5892-D, the valve spring cap, the valve spring, and the
Valve Stem Oil Seal.