TM10-3930-660-20 4-4. CYLINDER HEAD - ADJUST This  task  covers: Adjustment of Engine Valves Initial Setup Tools Tool Kit, Automotive Mechanics Shop Equipment, Automotive Maintenance, Common #2 Less Power Equipment  Condition Rocker lever covers removed, para. 4-50 Engine cooled to temperature of 140° F (60° C), or less. Transmission cover removed, para. 16-6. ADJUSTMENT 1. LOCATE TOP DEAD CENTER FOR NUMBER 1 CYLINDER. Rotate engine counterclockwise at universal joint of transmission input shaft (1) as assistant pushes on engine timing pin (2). Continue step la until engine timing pin (2) moves inward. Number 1 cylinder is now at top dead center. 4-4