Toyota 3S-GE Repair Manual page 40

EG-2 6
ENGINE - ENGINE MECHANICAL
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V 5- H. Remove camshafts
/ Uniformly loosen and remove the 10 bearing cap bolts
-I in several passes, in the sequence shown, and remove
1 9 the 5 bearing caps, oil seal and camshaft. Remove the
. intake and exhaust camshafts.
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/ I. Remove adjusting shims
Lifter q) Remove the valve lifter and adjusting shim.
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Replace adjusting shims
Determine the replacement adjusting shim size by
following the Formula or Charts:
0 Using a micrometer, measure the thickness of
the removed shim.
0 Calculate the thickness of a new shim so that the
valve clearance comes within specified value.
T ......... .. Thickness of removed shim
/ mm A ......... .. Measured valve clearance
N ......... .. Thickness of new shim
Intake:
N = T + (A - 0.20 mm (0.008 in.))
Exhaust:
N = T + (A - 0.33 mm (0.013 in.))
I Select a new shim with a thickness as close as
possible to the calculated value.
HINT: Shims are available in 19 sizes. 18 sizes are
available in equal increments of 0.05 mm (0.002O in.),
from 2.50 mm (0.0984 in.) to 3.35 mm (0.1319 in.).
The largest shim size available is 3.39 mm (0.1335 in.).