Removing
1. Remove rocker assembly (Chapter 11).
2. Remove the cylinder head (Chapter 16).
3. Using a compressor to compress the valve springs, remove the valve holders one at a time. Open the compressor and remove the supports and springs. Remove the valve stem oil seal with pliers.
Removing the valve spring holders by the compressor
4. Remove the valves, one at a time, with their holders, and arrange them in a specific, numbered sequence to facilitate reinstallation. See Section 2 Part B for the inspection procedure of valve components.
Installation
5. Insert the new valve stem seals into the guides and, using the correct size pipe and hammer, fully seat them in their seats.
6. Coat first valve stem with clean engine oil and install in original guide.
7. Install the valve springs and supports and, using a valve spring remover, install the retainers.
8. Repeat the procedure for the remaining valves.
9. Install the rocker arm assembly and cylinder head.