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ARMY TM 9-2815-254-24 AIR FORCE TO 38G1-94-2 e. Check connecting rod side face clearance as follows: (1) Install connecting rod on crankpin. (2)   Using a feeler gage, measure clearance between connecting rod side face and crankpin web face, refer to FIGURE 3-83. (3) Standard clearance is 0.009 in. (0.23 mm), with a limit of 0.014 in. (0.35 mm). FIGURE  3-83.  Connecting  Rod  Side  Face  Clearance (4) If measured clearance exceeds limit, replace connecting rod. 3-28.3.2 Crankshaft and Bearings. a. The following is a summation of basic dimension measurements, refer to FIGURE 3-84. (1) Measure A and B dimensions, and subtract B from A to obtain dimension C. (2) Measure crankpin to connecting rod bearing clearance D in same manner. (3) Clearances C or D are basis for determining crankshaft repairs. (4)   Replace bearings with standard size ones when crankshaft journal wear and/or crankpin wear is within limits but bearing wear is close to wear limits. (5)   Replace bearings with undersized ones when crankshaft journal wear and crankpin wear exceeds limits. 3-134


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