ES 300 V6-3.0L (1MZ-FE) (1997)
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Using a micrometer, measure the thickness of the removed shim.
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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 - 0.20 mm (0.008 inch))
Exhaust: N = T + (A - 0.30 mm (0.012 inch))
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Select a new shim with a thickness as close as possible to the calculated values.
NOTE: Shims are available in 17 sizes in increments of 0.050 mm (0.0020 inch), from 2.500 mm (0.0984 inch) to 3.300 mm (0.1299 inch).
3. Install a new adjusting shim.
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Place a new adjusting shim on the valve lifter, with imprinted numbers facing down.
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Press down the valve lifter with SST (A), and remove SST (B).
4. Recheck the valve clearance.