CAUTION: Adjust valve clearance while engine is cold.
Perform adjustment by selecting the correct head thickness of the valve lifter (adjusting shims are not used).
The specified valve lifter thickness is the dimension at normal temperatures. Ignore dimensional differences caused by temperature. Use specifications for hot engine condition to confirm valve clearances.
Remove the camshaft.
Remove the valve lifter that was measured as being outside the standard specifications.
Measure the center thickness of the removed lifter with a micrometer, as shown.
Use the equation below to calculate the replacement valve lifter thickness.
Valve lifter thickness calculation equation: t = t1 + (C1 - C2)
t = thickness of the replacement lifter t1 = thickness of the removed lifter
C1 = measured valve clearance
C2 = standard valve clearance
The thickness of the new valve lifter can be identified by the stamp mark on the reverse side (inside the lifter).
Available thickness of the valve lifter (factory setting): 7.88 - 8.40 mm (0.3102 - 0.3307 in) , in 0.02 mm (0.0008 in)