TM-9-2815-225-34-P
ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2005
TM-9-2815-225-34-P - Page 504 of 736
TM 9-2815-225-34&P
0054 00
WEAR LIMITS (Contd)
Table 1. Wear Limits.
0054 00-2
PART
DESCRIPTION/LOCATION
WEAR LIMIT
Cylinder sleeve
Maximum pit depth
.0625 in. (1.6 mm) maximum
Cylinder sleeve
Inside bore diameter
5.505 in. (13.983 cm) maximum
Main bearing halves
Thickness
0.1215 in. (3.0861 mm) acutal limit
Connecting rod
Length
0.002 in. (0.050 mm) maximum
Connecting rod for twist
Between piston pin
holding mandrel and dial
indicator holding plate
0.20 in. (0.5078 mm) maximum
Camshaft follower roller
Outside diameter
1.2495 in. (31.737 mm) minimum
1.2505 in. (31.763 mm) maximum
Expansion plug
Flush with edge of hole
0.010 in. (0.254 mm) maximum
Rocker lever housing shaft bore
Inside diameter
1.1238 in. (2.855 cm) minimum –
1.1246 in. (2.857 cm) maximum
Rocker lever shaft
Outside diameter
1.1230 in. (2.552 cm) minimum –
1.1240 in. (2.855 cm) maximum
Turbocharger wheel and shaft
Runout
0.00005 in. (0.0127 mm) maximum
Turbocharger wheel and shaft and
turbine housing
Clearance
0.005 in. (0.127 mm) minimum –
0.043 in. (0.092 mm) maximum
Turbocharger wheel and shaft
End play
0.006 in. (0.152 mm) minimum –
0.0018 in. (0.457 mm) maximum
Camshaft support
Inside diameter
1.757 in. (4.46 cm) maximum
Accessory drive shaft bushing
Surface outer dimension
1.310 in. (3.327 cm) minimum
Accessory drive gear to accessory
drive housing
Allowable clearance
0.002 in. (0.051 mm) minimum –
0.012 in. (0.305 mm) maximum
Connecting rod
Bend or twist
0.002 in. (0.508 mm) maximum
bend and 0.004 in. (0.102 mm)
maximum twist
Connecting rod and crankshaft
End inside diameter
1.935 in. (49.149 mm) maximum
Cylinder housing inside bore
Diameter
3.6285 in. (9.2164 cm) maximum
Cylinder housing bore
Out-of-round
0.0015 in. (0.0381 mm) maximum
Piston pin bore
Diameter
0.6885 in. (17.4879 mm) maximum
Piston pin
Outside diameter
0.6876 in. (17.4625 mm) maximum
Piston ring
End gap
0.010 in. (0.254 mm) minimum –
0.020 in. (0.508 mm) maximum
Crankshaft front support journal
Diameter
1.872 in. (4.755 cm) minimum –
1.873 in. (4.757 cm) maximum
Crankshaft half coupling journal
Diameter
1.003 in. (2.548 cm) minimum –
1.0035 in. (2.549 cm) maximum
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