Highlander LTD 2WD V6-3.0L (1MZ-FE) (2002)
(a) Turn the crankshaft pulley, and align its groove with the timing mark "0" of the No.1 timing belt cover.
(b) Check that the valve lifters on the No.1 (IN and EX) are loose.
If not, turn the crankshaft 1 revolution (360°) and align the mark as above.
(c) Check only those valves indicated in the illustration.
(1) Using a feeler gauge, measure the clearance between the valve lifter and camshaft.
Valve clearance (Cold):
Intake 0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust 0.25- 0.35 mm (0.010 - 0.014 in.)
(2) Record out-of-specification valve clearance measurements. They will be used later to determine the required replacement adjusting shim.