Expedition 4WD V8-5.4L VIN 5 (2006)
Valve Guide Seal: Service and Repair
Valve Seals
Special Tool(s)
Material
Removal
1. Depending on the valve being serviced, remove the LH or RH valve cover.
2. Remove the spark plug. For additional information, refer to Ignition System.
3. Rotate the crankshaft until the piston for the valve being serviced is at the top of its stroke with the intake valve and the exhaust valves closed.
4. CAUTION: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into the
original locations.
Using the special tool, compress the valve spring and remove the camshaft roller follower.
5. Use compressed air in the cylinder to hold both valves in position.
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Apply a minimum of 965 kPa (140 psi) of compressed air into the cylinder.
