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 828 of 856
Table 1.
Repair Specifications List - Continued.
(1) POINT OF
MEASUREMENT
(2) NEW MINIMUM
INCHES (MM)
(3) NEW MAXMUM
INCHES (MM)
(4) WEAR LIMIT
INCHES (MM)
PISTON ASSEMBLY (CROSS–HEAD TYPE)
Piston Crown
Saddle to crown distance
2.8325 (71.95)
2.8395 (72.12)
*
Diameter
Top
3.8486 (97.75)
3.8516 (97.83)
*
Below both compression
rings
3.8636 (98.14)
3.8666 (98.21)
*
Above/below seal ring
groove
3.8666 (98.21)
3.8676 (98.24)
*
Above/below bearing
saddle
2.8350 (72.01)
2.8380 (72.09)
*
Compression Rings
Gap (top ring)
0.0230 (0.58)
0.0380 (0.97)
0.0600 (1.52)
Gap (No.2 and 3)
0.0200 (0.51)
0.0300 (0.76)
0.0600 (1.52)
Clearance (ring to groove)
Top ring
0.0030 (0.08)
0.0066 (0.17)
0.0086 (0.22)
No. 2
0.0070 (0.18)
0.0100 (0.25)
0.0140 (0.36)
No. 3
0.0050 (0.13)
0.0080 (0.20)
0.0130 (0.33)
Oil Control Rings
Gap (two rings–lower
groove)
0.0100 (0.25)
0.0250 (0.64)
0.0440 (1.12)
Gap (one ring–upper
groove)
0.0070 (0.18)
0.0170 (0.43)
0.0370 (0.94)
Clearance (two rings–
lower groove)
0.0015 (0.04)
0.0055 (0.14)
0.0080 (0.20)
Clearance (one ring–
upper groove)
0.0005 (0.01)
0.0040 (0.10)
0.0065 (0.17)
Piston Skirt
TM 9-2815-205-24
0106
0106-4
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