Valve Lifter: Inspection
WARNING: This page is about a different car, the 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
Inspect components for damage. Measure valve lifter diameter and lifter bore diameter in cylinder head to determine lifter clearance. Ensure oil clearance is within specification. Replace components if not within specification. See VALVE LIFTERS table under ENGINE SPECIFICATIONS.