Detroit Diesel 4000 Series, Service Manual, Page: 264 / 2706

SERIES 4000 12/16V SERVICE MANUAL
C 014.05.08 – INSPECTION AND REPAIR
Perform the following steps for the inspection and repair of the oil pan:
1. Clean oil pan and carefully remove any remaining solvents.
NOTE:
Ensure parts are perfectly clean.
2. Visually inspect oil pan using surface crack-testing method with red penetrant dye.
[a] If oil pan shows cracks, replace oil pan.
[b] If oil pan does not show cracks, continue inspection.
3. Visually inspect mating surface of oil pan and cylinder block for surface irregularities.
[a] If mating surface shows surface irregularities over 0.2 mm (0.0079 in.), recondition
mating surface.
[b] If mating surface does not show surface irregularities, continue inspection.
4. Visually inspect all mating and sealing surfaces and pan seal support groove for
irregularities.
[a] If surfaces show irregularities, rub down with emery cloth or oilstone as necessary.
[b] If irregularities are beyond repair, replace components as necessary.
[c] If mating surfaces do not show irregularities, continue inspection.
5. Visually inspect all parts for wear and damage.
[a] If wear or damage is found, replace components as necessary.
[b] If wear or damage is not found, continue inspection.
6. Visually inspect condition of threads in tapped bores.
[a] If threads are worn or damaged, replace threaded inserts as necessary.
[b] If threads are not worn or damaged, continue inspection.
7. Visually inspect suction basket, spacer block and mating mount flange in oil pan for
contamination and damage.
[a] If the mesh grill is contaminated or damaged, replace suction basket.
[b] If the mesh grill is not contaminated or damaged, continue inspection.
8. Visually inspect suction basket, spacer block and mating mount flange in oil pan for
surface irregularities.
[a] If suction basket, spacer block and mating mount flange in oil pan show surface
irregularities, repair to ensure proper sealing.
[b] If damage is beyond repair, replace component.
All information subject to change without notice.
C -118
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