Cylinder Head On

Removal
1. Remove rocker arm shaft assemblies.
2. Rotate crankshaft until piston is at TDC on compression stroke.
3. With air hose attached to adapter tool installed in spark plug hole, apply 90-120 psi air pressure.

Removing And Installing Valve Spring:

4. Using Special Tool MD-998772A with adapter 6779 compress valve springs and remove valve locks.
5. Remove valve spring.

Valve Stem Oil Seal Tool:

6. Remove valve stem seal by using a valve stem seal tool.

Installation

Valve Spring Assembly:

1. Install valve seal/valve spring seat assembly.
2. Using Special Tool MD-998772A compress valve springs only enough to install locks. Correct alignment of tool is necessary to avoid nicking valve stems (air pressure required), piston at TDC.
3. Install rocker arm shaft assemblies.
4. Install cylinder head cover.