Valve Clearance: Adjustments
VALVE ADJUSTMENT1. With engine at operating temperature, remove rocker arm cover.
2. Disconnect high tension lead from ignition coil.
3. While observing rocker arms on No. 4 cylinder, rotate crankshaft clockwise until exhaust valve is closing and intake valve has just to open.
4. Ensure timing mark on crankshaft pulley is aligned with T mark on lower timing cover case. At this position No. 1 cylinder is at top dead center compression stroke.
5. Check and adjust valve clearance for both intake and exhaust valves of No. 1 cylinder, intake valve of No. 2 cylinder and exhaust valve of No. 3 cylinder. If valve clearance is not as specified, adjust valves as follows:
a. Loosen rocker arm locknut.
Fig. 5 Valve Clearance Adjustment:
b. Turn adjusting screw while measuring clearance with a feeler gauge, Fig. 5, until screw contacts feeler gauge.
c. Intake and exhaust valve clearances should be:
Intake 0.008 in. Hot, 0.004 in. Cold.
Exhaust 0.010 in. Hot, 0.007 Cold.
d. Hold adjusting screw in place and tighten locknut.
6. Rotate crankshaft clockwise 360 degrees, then check and adjust valve clearance for exhaust valve of No. 2 cylinder, intake valve of No. 3 cylinder and intake and exhaust valves of No. 4 cylinder.
7. After completing adjustment, install rocker arm cover and connect ignition coil high tension lead.