TM 10-3930-669-20 3-3.  VALVE OVERLAP DETERMINATION. This task covers a. Removal b. Adjustment c. Installation INITIAL SETUP Tools and Special Tools Tool Kit, General Mechanic's: Automotive (Item 1, Appendix B) Wrench, Torque (0-60 N-m) (Item 12, Appendix B) Materials/Parts Rags, Wiping (Item 19, Appendix C) Gasket, Valve Cover Equipment Condition Engine OFF (TM 10-3930-669-10) Wheels chocked (TM 10-3930-669-10) Cab positioned for service (Para 15-2) Alternator belt adjusted (Para 7-4) a. Removal. (1) Remove screw (1) and washer (2) from cover (3) and counterweight (4). (2) Remove screw (5) and washer (6) from cover (3). (3) Loosen nut (7) until nut is at the top of screw (8). (4) Disconnect connector (9). NOTE Lift cover when pivoting outward to clear mounting tab. (5) Pivot cover (3) outward and forward. 3-4