Detroit Diesel 4000 Series, Service Manual, Page: 1070 / 2706

SERIES 4000 12/16V SERVICE MANUAL
C 111.05.08 – INSPECTION AND REPAIR
Perform the following steps to inspect and repair the charge air cooler:
1. Clean all components and visually inspect for damage and defects.
[a] If components are damaged or defective, replace as necessary.
[b] If components are not damaged or defective, continue inspection.
2. Visually inspect inlet and outlet housing for cracks using surface crack – testing method
with red penetrant dye.
[a] If inlet or outlet housing is cracked, replace component.
[b] If inlet and outlet housing are not cracked, continue inspection.
3. Clean all sealing, contact and mating surfaces of remaining particles of seal and inspect
for damage and unevenness.
[a] If sealing, contact or mating surfaces is damaged or uneven, smooth with oilstone
or emery cloth as necessary.
[b] If sealing, contact or mating surface is not damaged or uneven, continue inspection.
4. Inspect threads in charge air cooler and inlet housing for ease of movement.
[a] If threads in charge air cooler and inlet housing do not show ease of movement,
recondition as necessary.
[b] If threads in charge air cooler and inlet housing do show ease of movement, continue
inspection.
5. Replace sealing rings and gaskets.
6. Clean inlet and outlet housings.
7. Clean air and coolant sides of charge air cooler.
Cleaning Air Side of Charge Air Cooler
Perform the following steps to clean the air side of the charge air cooler:
All information subject to change without notice.
C -924
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