Q45 V8-4.5L (VK45DE) (2002)
Valve Lifter and Adjusting Shim
Check if surface of valve lifter and adjusting shim has any wear or cracks.
Valve Lifter Clearance
Outer Diameter of Valve Lifter
Measure outer diameter of valve lifter.
Valve lifter outer diameter:..........33.965 - 33.975 mm (1.3372 - 1.3376 inch)
Valve Lifter Hole Diameter
Using inside micrometer, measure diameter of valve lifter hole of cylinder head.
Standard:3.....4.000 - 34.016 mm (1.3386 - 1.3392 inch)
Calculation of Valve Lifter Clearance
(Valve lifter clearance) = (hole diameter of valve lifter) - (outer diameter of valve lifter)
Standard:...............0.025 - 0.051 mm (0.0010 - 0.0020 inch)
When out of specified range, referring to each specification of outer and inner diameter, replace either or both valve lifter and cylinder head.