SC 430 V8-4.3L (3UZ-FE) (2003)
Valve Clearance: Adjustments
ADJUSTMENT
1. REMOVE CYLINDER HEAD COVER SUB-ASSY
2. REMOVE CYLINDER HEAD COVER SUB-ASSY LH
3. SET NO. 1 CYLINDER TO TDC/COMPRESSION
a. Turn the crankshaft damper, and align its groove with timing mark "0" of the timing belt No. 1 cover.
b. Check that the timing marks (1 dot mark) of the intake and exhaust camshaft gears on the LH bank are aligned.
If not, turn the crankshaft 1 revolution (360°) and align the mark as above.
4. INSPECT VALVE CLEARANCE
a. Check the only the valves indicated.
1. Using a feeler gauge, measure the clearance between the valve lifter and camshaft.
2. Record the out-of-specification valve clearance measurements. They will be used later to determine the required replacement adjust shim.
Valve clearance (Cold)