Valve Lifter: Inspection
WARNING: This page is about a different car, the 1995 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
Inspect valve lifter for damage. Ensure roller rotates smoothly and has no flat spots or scoring. Measure valve lifter O.D. and cylinder block lifter bore I.D. If oil clearance is not as specified, replace components. See VALVE LIFTERS table under ENGINE SPECIFICATIONS.