TM-9-2815-205-24 Technical Manual for M113 Engine 6V53 6V53T Download
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INSPECTION-ACCEPTANCE AND REJECTION CRITERIA - Continued Table 2. Piston Ring Specifications. MINIMUM MAXIMUM RING GAP Compression Rings 0.0200 in. (0.508 mm) 0.0460 in. (1.168 mm) Oil Control Rings 0.0100 in. (0.254 mm) 0.0250 in. (0.635 mm) CLEARANCE (RING TO GROOVE) Top Groove 0.0030 in. (0.076 mm) 0.0060 in. (0.152 mm) Second Groove 0.0070 in. (0.178 mm) 0.0100 in. (0.254 mm) Third and Fourth Grooves Model 5063-5299 0.0045 in. (0.114 mm) 0.0070 in. (0.178 mm) Oil Control Ring Grooves 0.0015 in. (0.038 mm) 0.0055 in. (0.140 mm) CAUTION File or stone both ends of fire and compression rings from outer surface to inner surface to prevent chipping or peeling of chrome plating on rings. 18. File ends of fire or compression ring if ring gap is too small. Ends of ring must remain square and chamfer on outer edge must be approximately 0.015 inch (0.381 mm). 19. Using thickness gage, measure ring side clearance. Refer to Table 2 for ring side clearance specifications. 1 PISTON RING PISTON RING MAINT_361 Figure 9. Fitting Piston Rings. END OF TASK TM 9-2815-205-24 0094 0094-11