TM-9-2815-205-24
6V53/6V53T ENGINES, DIESEL WITH CONTAINERS; MODEL 5063-5299, MODEL 5063-5392, MODEL 5063-5393 AND MODEL 5063-539L
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE
FEBRUARY 2013
TM-9-2815-205-24 - Page 707 of 856
INSPECTION-ACCEPTANCE AND REJECTION CRITERIA - Continued
Table 2.
Piston Ring Specifications - Continued.
MINIMUM
MAXIMUM
Two Compression Rings
0.0200 in. (0.508 mm)
0.0300 in. (0.762 mm)
Upper Oil Control Ring
0.0070 in. (0.178 mm)
0.0170 in. (0.432 mm)
Two Lower 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 Groove
0.0050 in. (0.127 mm)
0.0080 in. (0.203 mm)
Upper Oil Control Ring Groove
0.0005 in. (0.013 mm)
0.0040 in. (0.102 mm)
Lower Oil Control Ring Groove
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 ring.
16.
File ends of 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 (0.038 mm).
17.
Using piston-liner thickness gage set, measure side clearance of ring in piston dome (Figure 8, Item 16).
Refer to Table 2 for ring side clearance specifications.
PISTON RING
PISTON RING
1
16
MAINT_378
Figure 8.
Fitting Piston Rings.
END OF TASK
TM 9-2815-205-24
0095
0095-11
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