TM-9-2815-205-24 Technical Manual for M113 Engine 6V53 6V53T Download
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REMOVAL 1. Install a cylinder liner hold-down clamp (Figure 1, Item 2) on each cylinder to anchor cylinder liners (Figure 1, Item 1) during crankshaft rotation. 2. Rotate crankshaft (Figure 1, Item 3) until connecting rod journal (Figure 1, Item 4) being worked on is at bottom of its travel. 3. Remove cylinder liner hold-down clamp (Figure 1, Item 2) from cylinder being worked on. CAUTION Remove all carbon deposits at top of liner before removing piston from cylinder liner. Piston ring breakage can occur when carbon deposits are present. 4. Using cylinder ridge reamer, remove carbon deposits from upper surface of cylinder liner (Figure 1, Item 1). 5. Remove two nuts (Figure 1, Item 5), cap (Figure 1, Item 6), and lower bearing shell (Figure 1, Item 7) from piston and connecting rod assembly (Figure 1, Item 8). NOTE Tag piston assembly and liner with cylinder number for matching during reassembly. 6. Push piston and connecting rod assembly (Figure 1, Item 8) out through top of cylinder block. NOTE Always assemble cap with stamped number on same side as stamped on lower part of connecting rod to ensure cap is not rotated 180 degrees. 7. Assemble bearing cap (Figure 1, Item 6), lower bearing shell (Figure 1, Item 7), and two nuts (Figure 1, Item 5) on piston and connecting rod assembly (Figure 1, Item 8). 8. Repeat Steps 2–7 for remaining piston and connecting rod assemblies (Figure 1, Item 8). 3 1 4 5 6 7 8 2 MAINT_353 Figure 1. Piston and Connecting Rod Removal. END OF TASK TM 9-2815-205-24 0094 0094-2