Removal

Valve Spring, Retainer and Seal

Special Tool(s):

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

1. Remove all of the camshafts.
2. Rotate the crankshaft until the piston for the valve being serviced is at the top of its stroke.

3. CAUTION: If air pressure has forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve to fall into the cylinder. If air pressure must be removed, support the valve prior to removal.

CAUTION: If the components are to be reinstalled, they must be installed in their original positions. Mark the components for installation into their original locations.

NOTE: If a valve drops into the cylinder, remove the cylinder head.

Pressurize the cylinder using compressed air.
4. Using the special tool, remove the keys, retainer and spring.

5. Remove and discard the valve stem seal.