Toyota Workshop Service and Repair Manuals

Shim Measurement

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

T =

Thickness of used shim

A =

Measured valve clearance

N =

Thickness of new shim

Intake N = T + (A - 0.20 mm (0.0079 in.)
Exhaust N = T + (A - 0.25 mm (0.0098 in.)