Valve Guide Seal: Service and Repair

Valve Seals

Valve Train Components - Exploded View:

Special Tool(s):

Removal and Installation

CAUTION: During engine repair procedures, cleanliness is extremely important. Any foreign material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

1. Remove the rocker arms.

2. NOTE: Install an air line with an adapter in the spark plug hole and turn on the air supply. If the air pressure fails to hold the valve(s) closed while performing these steps, valve or valve seat damage is indicated and the cylinder head must be removed.

NOTE: Apply a minimum of 689 kPa (100 psi) of compressed air to the cylinder.

Using the special tool, remove the valve spring retainer keys.





3. Remove the valve spring retainer.
4. Remove the valve spring and inspect.
5. Remove the valve stem seal.

6. CAUTION: Do not release the compressed air from the cylinder until after the valve spring retainer keys are installed.

To install, reverse the removal procedure.