Pickup 2WD L4-2.3L (4ZD1) (1988)
Exhaust 0.25 (0.010) mm(in)
4ZE1:
Intake 0.20 (0.008) mm(in)
Exhaust 0.20 (0.008) mm(in)
4. Loosen each valve clearance adjusting screw as shown.
5. Insert a feeler gauge of the appropriate thickness between the rocker arm and the valve stem end.
6. Turn the valve clearance adjusting screw until a slight drag can be felt on the feeler gauge.
7. Tighten the lock nut securely.
8. Rotate the crankshaft 360°.
9. Realign the crankshaft pulley TDC notched line with the timing mark.
10. Adjust the clearances for the remaining valves as shown in the illustration.