Sienna LE V6-3.0L (1MZ-FE) (1998)
HINT: Shims are available in 17 sizes in increments of 0.050 (0.0020 inch), from 2.500 mm (0.0984 inch) to 3.300 mm (0.12 inch).
c. Install a new adjusting shim.
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Place a new adjusting shim on the valve lifter, with imprinted numbers facing down.