NOTE: Connect the HDS to the DLC, and monitor ECT SENSOR 1. Adjust the valve clearance only when the engine coolant temperature is less than 100 °F (38 °C).
Turn the crankshaft to align No. 1 position at top dead center (TDC); the white mark on the crankshaft pulley (A) lines up with the pointer (B).
2.
Check the No. 1 piston at top dead center (TDC). The "UP" mark (A) on the camshaft sprocket should be at the top, and the TDC grooves (B) on the camshaft sprocket should aline up with the top edge of the cylinder head.
3.
Select the correct feeler gauge for the valve clearance you are going to check.
Valve Clearance
Intake:
0.21?0.25 mm (0.009 in)
Exhaust:
0.25?0.29 mm (0.010?0.011 in)
4.
Insert the feeler gauge (A) between the tappet adjusting screw and the end of the valve stem on the No. 1 cylinder, and slide it back and forth; you should feel a slight amount of drag.
5.
If you feel too much or too little drag, loosen the locknut, and turn the tappet adjusting screw until the drag on the feeler gauge is correct.
6.
While holding the tappet adjusting screw with the screw driver, tighten the locknut, then recheck the clearance. Repeat the adjustment, if necessary.
