F 450 2WD Super Duty V10-6.8L VIN S (1999)
6. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These
tools cause scratches and gouges which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.
NOTE: The bolts are part of the valve cover and should not be removed.
Remove the LH valve cover.
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Fully loosen the bolts and remove the valve cover.
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Inspect the valve cover gasket and clean the mating surface of the cylinder head.
Installation
1. NOTE: If not secured within 4 minutes, the sealant must be removed and the sealing area cleaned with Metal Surface Cleaner F4AZ-19A536-A
or equivalent meeting Ford specification WSE-M5B392-RA. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer.
Failure to follow this procedure can cause future oil leakage.
Apply a bead of silicone in two places where the engine front cover meets the cylinder head.
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Use Silicone Gasket and Sealer F6AZ-19562-AA or equivalent meeting Ford specification WSE-M4G323-A6.