ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 4-69 (7)     Remove timing pin from flywheel and manually rotate engine one full revolution (360º) in running direction (clockwise when viewed from front of engine) using (JDG820) flywheel turning tool. (8)     Observe dial indicator reading as valve is moved to full open.  Record maximum reading and compare with specifications given in Table 4-3. (9)     Repeat steps 5 through 8 for remaining valves.   (10)  Set engine with No. 4 piston at TDC compression stroke, refer to step a. (11)  Loosen jam nut (8) and adjust valve clearance on No. 2 and 4 exhaust valves and No. 3 and 4 intake valves to 0.00 in. (mm).  Torque jam nut to 20 lb-ft (27 Nm). (12)  Position dial indicator tip on top of No. 2 exhaust valve spring cap. (13)  Preload dial indicator tip and set dial at 0.00 in. (mm). (14)  Remove timing pin from flywheel and manually rotate engine one full revolution (360º) in running direction (clockwise when viewed from front of engine) using (JDG820) flywheel turning tool. (15) Observe dial indicator reading as valve is moved to full open.  Record maximum reading and compare with specifications given in Table 4-3. (16)  Repeat steps 12 through 15 for remaining valves. (17)  If valve lift on all valves is within specifications given in Table 4-3, check and adjust valve clearance, refer to paragraph b. (18)  If valve lift on one or more valves is not within specifications given in Table 4-3, notify next higher maintenance level to remove and inspect entire valve train and camshaft. Table 4-3.  Valve Lift Specification at 0.00 in. (mm) Valve Clearance Item Specification Intake Valves 0.455 - 0.487 in. (11.56 - 12.37 mm) Exhaust Valves 0.444 - 0.477 in. (11.28 - 12.12 mm)