The exhaust valves are mounted with the same size valve adjusting shim regardless of the valve position.
The intake valves are mounted with the different size valve adjusting shims according to the valve position. Thus line up the removed shims as its original position in order to help to reinstall correctly.
Identify, valves and valve springs as they are removed so that each item can be reinstalled in its original position.
Remove the valve adjusting shims (A).
If the intake valve adjusting shim replacement is necessary, replace with the same size shim as its original shim. Otherwise, it can cause engine hesitation due to increased valve lift deviation.
Remove the valves.
Using the SST (09222-3K000, 09222-3K100), compress the valve spring and remove the retainer lock (A).
When installing the SST, insert the front support (A) directly into the bolt hole on the cylinder head.
Do not press valve retainer more than 12 mm (0.47 in.).
Remove the spring retainer (B).
Remove the valve spring (C).
Remove the valve (D).
Using needle-nose pliers, remove the valve stem seal (E).
Do not reuse the valve stem seals.