Celica L4-1.8L (2ZZ-GE) (2005)
2. Determine the size of the replaced shim according to these Formula or Charts:
^ Using dial indicator, measure the thickness of the removed shim.
^ Calculate the thickness of a new shim so the valve clearance comes within the specified value.
T: Thickness of used shim
A: Measured valve clearance
N: Thickness of new shim
Intake: N = T + (A - 0.13 mm (0.0051 inch) x 1.5
Exhaust: N = T + (A - 0.27 mm (0.0106 inch) x 1.5
^ Select a new shim with a thickness as close as possible to the calculated values.
HINT: Shim are available in 41 size in increments of 0.020 mm (0.0008 inch), From 2.000 mm (0.0787 inch) to 2.800 mm (0.1102
inch).