Before starting work on the Valve Stem Oil Seal and valve spring you must take off the valve
Rocker Arms and pushrods. Keep the Piston in the cylinder being serviced at the lowest point of its movement to stop engine spin during compressed air use. Adjust the Crankshaft so both valves are sealed before taking out the
Spark Plug from the cylinder. You need to install the Spark Plug port adapter (J 22794) into the Spark Plug opening before holding the valves shut with compressed air. Press the valve spring cap gently to free up its keys. Then place and fasten the valve spring compressor (J 5892-D) onto the Cylinder Head. Install the valve spring compressor (J 5892-D) on the valve spring and take away the valve stem keys while keeping compressed air from escaping the cylinder. Take off your tools one by one as you lower the valve spring compressor (J 5892-D) from the Cylinder Head and eject the valve spring cap and spring. First apply engine oil at the valve stem and seal region before sliding the valve guide seal over the valve guide. Also use clean oil to lubricate rotators inside the valve spring. Drive the valve stem seal installer j 43105 to position the valve guide seal over the valve tip and guide before pressing it down firmly. Insert the valve spring cap into the correct position with its small end facing upwards and put the spring on top. Press down the valve spring using the valve spring compressor (J 5892-D) while placing valve stem keys in position with clean grease on top. Take the valve spring compressor (J 5892-D) off the valve assembly while pressing its release button before pulling out the device. Drain compressed air from the cylinder afterwards. After adding the Spark Plug put back the valve rocker arms and pushrods.