TM-5-4310-389-14 Table 4-4.  Cylinder Head (Continued) Dimension Tolerance (min./max.) Item Inch (mm) Inch (mm) Journal Clearance in Bearing Bushing 0.0007 (.018) 0.0020 (.05) Journal Clearance Maximum Limit Value 0.0079 (.2) Camshaft Side Clearance 0.0079 (.2) 0.0118 (.3) Radial Clearance, Bearing Bushing 0.0012 (.03) 0.0043 (.109) Radial Clearance, Crankcase Center 0.0024 (.06) 0.0054 (.136) Radial Clearance, Crankcase Rear 0.0020 (.05) 0.0045 (.114) Radial Clearance, Crankcase 0.0028 (.07) 0.0047 (.120) Limit Value (replacement governed by oil pressure) 0.0079 (.2) Valve Cam Lift Inlet 0.3150 (8.0) Exhaust 0.3150 (8.0) Bearing Bushing, Nominal Internal Diameter 2.0461 (51.97) 0.0024 +(.06) Crankshaft Crankpin Diameter (normal) 2.3606 (59.96) 0.0008 -(.019) Number of Undersizes 6 Each Undersize 0.0098 (.25) Hardness Normal - HRc 58 +.3 Hardness Limit Value 50 Shaft Journal for Crankshaft Bearing Diameter (normal) 2.4410 (62) 0.0004 -(.01) 2.4410 (62) 0.0011 -(.029) Number of Undersizes 6 Each Undersize 0.0098 (.25) Length of Journal 1.3386 (34.0) 0.0015 (.039) Hardness Normal - NRc 58.0 ±3 Hardness Limit Value 50.0 Main Bearing Bore 2.6378 (67.0) 0.0008 +(.019) Inside Diameter (normal) 2.4429 (62.05) 0.0017 +(.043) Number of Undersizes 6 Each Undersize 0.0098 (.25) Minimum Inside Diameter 2.3839 (60.55) 0.0017 +(.043) 4-12