GX 470 V8-4.7L (2UZ-FE) (2004)
Valve Clearance: Adjustments
VALVE CLEARANCE (2UZ-FE)
ADJUSTMENT
1. DRAIN ENGINE COOLANT
2. SEPARATE BATTERY NEGATIVE TERMINAL
3. REMOVE V-BANK COVER SUB-ASSY
4. REMOVE AIR CLEANER HOSE ASSY
5. REMOVE RADIATOR SUPPORT SEAL UPPER
6. REMOVE FAN AND GENERATOR V BELT
7. REMOVE OIL COOLER PIPE
8. REMOVE TIMING BELT COVER SUB-ASSY NO.3 LH
9. REMOVE TIMING CHAIN OR BELT COVER NO.2
10. REMOVE CYLINDER HEAD COVER SUB-ASSY
a. Remove the 9 bolts, 9 seal washers and cylinder head cover
11. REMOVE CYLINDER HEAD COVER SUB-ASSY LH
a. Disconnect the PCV hose
b. Remove the 9 bolts, 9 seal washers and cylinder head cover
12. SET NO. 1 CYLINDER TO TDC/COMPRESSION
a. Turn the crankshaft pulley to align its notch with timing mark "0" of the No 1 timing belt cover
b. Check that the timing marks of the camshaft timing pulleys and timing belt rear plates are aligned If not, turn the crankshaft 1 complete
revolution (360°) and align the mark as above
13. INSPECT VALVE CLEARANCE
a. Check only the valves indicated.
1. Using a feeler gauge, measure the clearance between the valve lifter and camshaft.