Detroit Diesel MBE 4000 Service Manual page 227

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8. Replace the camshaft if any of the measurements do not meet the specifications
listed in Table 1-50.
What To Measure
Hardness of Surface
Camshaft Radial Runout When
Mounted on Outer Bearing Journals
Camshaft Radial Runout When
Mounted on Outer Bearing Journals
Camshaft Radial Runout When
Mounted on Outer Bearing Journals
Minimum Valve Cam Rise–Above
Basic Circle
Minimum Valve Cam Rise–Above
Basic Circle
Camshaft Journal Diameter
Bushing Diameter
Gear Back Lash
Gear Back Lash
Table 1-50
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Where To Measure
At Cams and Journals
At Gear Seat
At Cam Circle
At Camshaft Journals
Intake Valve
Exhaust Valve
For New Camshaft
At Camshaft Journals
Cam Gear to Crank Gear
Cam Gear to Air Compressor Gear
Camshaft Specifications
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MBE 4000 SERVICE MANUAL
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Value: mm (inch) Unless otherwise
noted
57–63 HRC
0.020 (0.0008)
0.025 (0.0010)
0.030 (0.0012)
7.3 (0.29)
8.2 (0.32)
81.893–81.928 (3.2241–3.2255)
82.000–82.035 (3.2283–3.2297)
0.074–0.176 (0.0029–0.0069)
0.082–0.168 (0.0032–0.0066)
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