A technician requires two tools to complete Valve Stem Oil Seal service:
Spark Plug port adapter j 22794 and valve spring compressor j 38606. Begin by taking off the valve
Rocker Arm. First disconnect the Spark Plug wire using a boot twist of 1/2 turn before pulling on the boot only. Extract and prepare the spark plugs from their engine position once it's room temperature by turning them 1-2 times while clearing away any dirt nearby. Fit the Spark Plug port adapter j 22794 into the Spark Plug hole then connect an air hose while compressed air locks the valves. Insert the valve spring compressor (J 38606) tool to squeeze the valve spring then take out valve stem keys prior to releasing valve spring pressure. Unscrew the valve spring compressor j 38606 then extract both the valve spring cap and valve spring while also discontinuing the Valve Stem Oil Seal/shim unit. Prepare the valve spring seat with clean oil and apply lubricant to the valve guide and Valve Stem Oil Seal before inserting the valve parts stepwise in that order. Use the valve spring compressor tool j 38606 to press down the valve spring then put in valve keys and confirm they fit within the valve stem groove. Take the valve spring compressor apart after lowering its valve spring force. Use a plastic hammer to tap the valve stem if necessary until its keys properly seat in the groove. Start the Spark Plug by hand while you install the Spark Plug port adapter (J 22794) back into its port. Tighten the Spark Plug to 15 n.m (11 lb ft). Push each boot sideways into its right position when reconnecting the
Spark Plug Wires between
Ignition Coil and Spark Plug. Close the procedure by placing the valve Rocker Arm.