TM10-3930-660-20 4-4. CYLINDER HEAD - ADJUST  (Cont’d) 2. ADJUST CLEARANCES OF THREE INTAKE VALVES (3) AND THREE EXHAUST VALVES (4). Intake valve clearance - 0.010 in. (0.254  mm). NOTE Exhaust valve clearance - 0.020 in. (0.508  mm). Clearance is correct when a slight pull is felt as feeler gauge is slipped between valve stem and rocker lever (7). a. b. Loosen adjustment locknut (5). Adjust screw (6) as required until valve clearance is properly adjusted. Tighten adjustment locknut (5) to 216 in. lb. of torque. Then recheck valve clearance. 3. DISENGAGE ENGINE TIMING PIN (2). 4. PLACE MATCH MARKS (8) ON CRANKSHAFT PULLEY (9) AND TIMING GEAR COVER (10). 5. LOCATE TOP DEAD CENTER FOR NUMBER 6 CYLINDER. a. Observe match marks (8) on crankshaft pulley (9) and timing gear  cover  (10). 4-5