OEM 2009 Ford Expedition Valve Stem Seal

2009 Ford Expedition Valve Stem Seal Parts Q&A

• Q: How to Service and Repair Valve Stem Seals on 2009 Ford Expedition?

  A: You must take off the RH valve cover before starting service and repair of the valve guide seals. The second step requires you to take away the LH valve cover. When servicing a specific cylinder, remove its spark plug and turn the crankshaft while the piston reaches its uppermost position along with shut intake and exhaust valves. Correct markings must be done on the components so they can be placed back accurately to avoid engine damage. Keeping the valve keepers secured in place will prevent the potential drop of the valve into the cylinder, accommodating the need for cylinder head removal. A Valve Spring Compressor enables valve spring compression for the removal of camshaft roller followers. A minimum of 965 kPa (140 psi) compressed air should be applied through the cylinder to secure both valves in place. When air pressure weakens, you must sustain the valve prior to extraction to stop it from falling. You can use the Valve Spring Compressor to compress the valve spring and take off the valve spring retainer keys and then remove the valve spring retainer and valve spring after removing the valve stem seal before discarding the old seal. Inspect all components before installation. The new valve stem seal requires clean engine oil treatment before its installation using the Valve Stem Oil Seal Installer while placing it onto the valve stem. The Valve Spring Compressor assists to place valve spring retainer and valve spring retainer keys into position while you remove air pressure from the cylinder. Investigate for keepers to prevent their release from the valve during this step. Clean engine oil lubrication applies to the camshaft roller followers before you reinstall the camshaft roller follower through valve spring compression. The installation process ends with replacement of the spark plug followed by the LH valve cover, then the RH valve cover.