VALVE CLEARANCE CHECK AND ADJUSTMENT
- Before inspection, set the vehicle to the pre-inspection condition.
- Turn the ignition switch to the "LOCK" (OFF) position.
- Remove all ignition coils.
- Remove all spark plugs from the cylinder head for easy inspection.
- Remove the rocker cover.
- Turn the crankshaft clockwise until the notch on the pulley is lined up with the "T" mark on the timing indicator.
- Move the rocker arms on the No. 1 and No. 4 cylinders up and down by hand to determine which cylinder has its piston at the top dead center on the compression stroke. If both intake and exhaust valve rocker arms have a valve lash, the piston in the cylinder corresponding to these rocker arms is at the top dead center on the compression stroke.
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- Valve clearance inspection and adjustment can be performed on rocker arms indicated by white arrow mark when the No. 1 cylinder piston is at the top dead centre on the compression stroke, and on rocker arms indicated by black arrow mark when the No. 4 cylinder piston is at the top dead centre on the compression stroke.
- Measure the valve clearance.
If the valve clearance is not as specified, loosen the rocker arm lock nut and adjust the clearance using a thickness gauge while turning the adjusting screw. - Intake valve: 0.20 mm
- Exhaust valve: 0.30 mm
Standard value (hot engine):
- While holding the adjusting screw with a screwdriver to prevent it from turning, tighten the lock nut to the specified torque.
Tightening torque: 9 ±
1 N·m
- Turn the crankshaft through 360° to line up the notch on the crankshaft pulley with the "T" mark on the timing indicator.
- Repeat steps (9) and (10) on other valves for clearance adjustment.
- Install the rocker cover.
- Install the spark plugs and tighten to the specified torque.
Tightening torque: 25 ±
4 N·m
- Install the ignition coils.