Valve Springs

Valve Springs

Special Tool(s):

Removal and Installation

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. Depending on the valve being serviced, remove the RH or LH valve cover.
2. Remove the spark plug.
3. Rotate the crankshaft until the piston for the valve being serviced is at the top of its stroke with both the intake valve and the exhaust valve closed.

4. CAUTION: If the components are to be reinstalled, they must be installed in the same position. Mark the components for installation into the original location.

Using the special tool, compress the valve spring and remove the camshaft roller follower.





5. Use compressed air in the cylinder to hold the valves in position.
- Apply a minimum of 965 kPa (140 psi) of compressed air into the cylinder.





6. Install the special tool between the valve spring coils to protect the valve seal from damage.





7. 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 the same position. Mark the components for location.

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

NOTE: Valve stem seals should be visually inspected if new seals are not installed.

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





8. Inspect the components.
9. To install, reverse the removal procedure.