Lexus Workshop Service and Repair Manuals

1. Using a micrometer, measure the thickness of the removed shim.
2. Calculate the thickness of a new shim so that the valve clearance comes within the specified value.

T ...........................................................................................................................................................................  Thickness of removed shim
A .............................................................................................................................................................................  Measured valve clearance
N ..................................................................................................................................................................................  Thickness of new shim

Intake:
N = T + (A - 0.20 mm (0.008 inch))