NOTE: The engine warm-up operation should be continued until the coolant temperature gauge indicates the middle of the scale.
1. Remove Rocker Cover.
2. Turn the Crankshaft so that the No 1 and No 4 cylinders come to their compression TDC In this state, inspect and adjust the valve clearance following the figure on the left and the table below.
3. Insert a thickness gauge between the Valve Stem and the Rocker Arm and check that a specified Valve clearance is present Intake/exhaust valve clearance: 0.38 mm (0.015 in).
4. Inspect all valves If inappropriate clearance is found in any Valve, adjust the clearance.
5. To adjust the clearance, loosen the Lock Nut for the Adjusting Screw and turn the Adjusting Screw until appropriate clearance is attained
6. After adjustment, tighten the Lock Nut while holding the Adjusting Screw in place.