ARMY TM 9-2805-262-14 AIR FORCE TO 38G2-90-1 NAVY NAVFAC P-13-14E Table 6-2.  Engine Repair and Replacements Limits. Measurements Item Maximum* Minimum* CAMSHAFT Bearing Journal Diameter: Front 0.7490 0.7485 (1.9025) (1.9012) Center 1.3740 1.3735 (3.4900) (3.4887) Rear 0.7490 0.7485 (1.9025) (1.9012) Cam Lift 0.1866 0.1826 (0.4740) (0.4638) Cam Lobe 1.0616 1.0576 (2.6965) (2.6863) Bearing Inside Diameter: Front 0.7510 0.7500 (1.9075) (1.9050) Center 1.3760 1.3750 (3.4950) (3.4925) Rear 0.7510 0.7500 (1.9075) (1.905) Clearance Journal to Bearing 0.0025 0.0010 (0.0063) (0.0025) CRANKSHAFT Main Bearing Journals: Front O.D. 0.8750 0.8745 (2.2225) (2.2212) Center O.D. 1.2500 1.2495 (3.175) (3.1737) Rear O.D. 1.2500 1.2495 (3.1750) (3.1737) Out-of-round or taper Connecting Rod Journal O.D. 0.8750 0.8745 (2.2225) (2.2212) Main Bearings I.D.: Front bushing 0.8765 0.8760 (2.2263) (2.2250) Center 1.2525 1.2513 (3.1813) (3.1783) Rear bushing 1.2515 1.2510 (3.1788) (3.1775) Change 2  6-26