Detroit Diesel 4000 Series, Service Manual

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SERIES 4000 12/16V SERVICE MANUAL
C 123.05.08 M – INSPECTION AND REPAIR
Perform the following steps for the inspection and repair of the intake housing:
NOTE:
Ensure that air carrying components are perfectly clean.
1. Clean all components
2. Visually inspect shaft for cracks using the surface crack – testing method with fluorescent
magnetic powder.
[a] If cracks are detected, replace component.
[b] If no cracks are detected, continue inspection.
3. Visually inspect the shaft for cracks using the magnetic crack – testing method with
fluorescent magnetic powder.
[a] If cracks are detected, replace component.
[b] If no cracks are detected, continue inspection.
4. Visually inspect bracket for wear, cracks and damage.
[a] If wear, cracks or damage is detected, replace component.
[b] If wear, cracks and damage are not detected, continue inspection.
5. Visually inspect sealing, mating and seating surfaces on intake housing for damage and
surface irregularities.
[a] If sealing, mating and seating surfaces on intake housing show damage or surface
irregularities, rub down with oilstone as necessary.
[b] If damage is beyond repair, replace component.
[c] If sealing, mating and seating surfaces on intake housing do not show damage or
surface irregularities, continue inspection.
6. Visually inspect fits of shaft and flanged bushing using micrometer.
[a] If limit values are exceeded, replace components
[b] If limit values are not exceeded, continue inspection.
7. Visually inspect clamps for wear or damage.
[a] If clamps show damage or wear, replace component.
[b] If clamps do not show damage or wear, continue inspection.
8. Inspect bolts for ease of movement.
[a] If bolts do not show ease of movement, replace component.
[b] If bolts do show ease of movement, continue inspection.
All information subject to change without notice.
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