Valve Guide Seal: Service and Repair

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

Valve Spring-removing And Installing:

4. Use Special Tool MD-998772A with Mounting Post 6886, Forcing Screw Arm 6887, Forcing Screw 6765 and Adapter 6885 to compress valve springs and remove valve locks.
5. Remove valve spring.
6. Remove valve stem seal by using a valve stem seal tool.

INSTALLATION

Valve Stem Seals-Installed:

1. Install valve seal as outlined in valve installation.

Valve Spring-removing And Installing:

2. Use Special Tool MD-998772A with Mounting Post 6886, Forcing Screw Arm 6887, Forcing Screw 6765 and Adapter 6885 to 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 and lash adjuster assemblies.
4. Install cylinder head cover.