TM-9-2815-205-24 Technical Manual for M113 Engine 6V53 6V53T Download
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INSPECTION-ACCEPTANCE AND REJECTION CRITERIA CAUTION Do not polish parallel to crankshaft axis or ridges will result in sealing surface and cause oil leakage. 1. Inspect rear end of crankshaft (Figure 2, Item 4) for wear due to rubbing action of seal, dirt build up, or fretting by action of flywheel. Remove slight ridges from rear of crankshaft by working around circumference with crocus cloth wetted with fuel oil. CAUTION When using hexagon head bolt at front of crankshaft to rotate crankshaft, always turn bolt clockwise. Serious engine damage may result if bolt becomes loose. 2. Check runout of seal bore as follows: a. Mount a dial indicator with magnetic base (Figure 2, Item 5) on rear of crankshaft (Figure 2, Item 4). b. With an assistant rotating front of crankshaft clockwise, note runout reading. Maximum allowable runout of bore is 0.008 inch (0.20 mm). 4 5 MAINT_194 Figure 2. Rear Crankshaft Oil Seal Runout Check. END OF TASK TM 9-2815-205-24 0071 0071-3