F 250 2WD Super Duty V8-5.4L (2008)
6. Use compressed air in the cylinder being serviced to hold the valves in position.
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Apply a minimum of 965 kPa (140 psi) of compressed air into the cylinder.
7. CAUTION: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation
into their original locations. Failure to follow these instructions may result in engine damage.
NOTE: 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. If a valve drops into the cylinder, remove the cylinder head.
Using the special tool, compress the valve spring and remove the valve spring retainer keys.
8. Remove the valve spring retainer, the valve spring and the valve seal.
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Discard the valve seal.
9. Inspect the components.
Installation
All valve seals
1. NOTE: Lubricate the valve seal and valve stem with clean engine oil prior to installation.
Position a new valve seal onto the valve stem.
2. Using the special tool, install the new valve seal.
