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 505 of 736
TM 9-2815-225-34&P
0054 00
WEAR LIMITS (Contd)
Table 1. Wear Limits (Contd).
PART
DESCRIPTION/LOCATION
WEAR LIMIT
Crankshaft rear coupling journal
Diameter
1.872 in. (4.755 cm) minimum –
1.873 in. (4.757 cm) maximum
Air compressor seat
Height
0.485 in. (12.319 mm) minimum
Air compressor seating area on seat
Height
0.270 in. (6.858 mm) minimum
Air compressor support thrust flange
Depth
1.307 in. (3.320 cm) minimum –
1.310 in. (3.327 cm) maximum
Fuel injector barrel ball
Seat depth
0.050 in. (1.27 mm) maximum
Solenoid valve seat
Width
0.015 in. (0.381 mm) minimum
Fuel pump weight-assist plunger
Protrusion
0.800 in. (20.32 mm) exact limit
Camshaft follower intake, injector,
and exhaust
Concentricity of inside
diameter with outside
diameter
0.0020 in. (0.051 mm) must be
within this measurement
Camshaft follower intake, injector,
and exhaust
Squareness of sides with
roller pin bore
0.0040 in. (0.102 mm) must be
within this measurement
Fuel pump front cover gear and
bushing
Clearance
0.002-0.005 in. (0.050-0.127 mm)
Cylinder block flatness
Between feeler gauge and
cylinder block
0.02 in. (0.51 mm) max measured
Cylinder liner counterbore
Depth
0.412 in. (10.465 mm) maximum
Cylinder sleeve
Protrusion
0.006 in. (0.152 mm) maximum
Vibration damper
Thickness
0.125 in. (3.157 mm) maximum
Rear oil seal
Contact area
5.998 in. (15.234 cm) minimum
Front oil seal
Contact area
3.625 in. (9.207 cm ) minimum
Rod bearing journal
Diameter
3.124 in. (7.933 cm) minimum
Main bearing journal
Diameter
4.489 in. (11.426 cm) minimum
Thrust ring
Thickness
0.245 in. (6.223 mm)
Crankshaft keyway
Width
0.375 in. (9.525 mm) maximum
Oil pump driveshaft
End play
0.002 in. (0.05 mm) minimum –
0.008 in. (0.20 mm) maximum
Diameter
0.874 in. (22.20 mm) minimum
Idler shaft
Outside diameter
0.874 in. (22.20 mm) minimum
Air Aftercooler to intake manifold
Clearance
0.013 in. (0.330 mm) maximum
Turbocharger bearing housing
Length
2.986 in. (7.584 cm) minimum
V-band clamp to turbin housing
Clearance
0.035 in. (0.889 mm) minimum
Impeller to impeller housing
Clearance
0.006 in. (0.152 mm) minimum
0054 00-3
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