Detroit Diesel 4000 Series, Service Manual, Page: 298 / 2706

SERIES 4000 12/16V SERVICE MANUAL
C 016.05.08 – INSPECTION AND REPAIR
Perform the following steps to inspect and repair the flywheel housing.
1. Clean all components and visually inspect for damage and defects.
[a] If components are damaged or defective, repair as necessary.
[b] If damage is beyond repair, replace components as necessary.
[c] If components are not damaged or defective, continue inspection.
2. Visually inspect lifting carrier and eyebolts for cracks using magnetic crack-testing
method with fluorescent powder.
[a] If lifting carrier and eyebolts are cracked, replace component.
[b] If lifting carrier and eyebolts are not cracked, continue inspection.
3. Visually inspect dead-center indicator for damage. (marine only)
[a] If dead-center indicator is damaged, replace component.
NOTE:
Do not straighten dead-center indicator if it is damaged or bent, but replace with a new
part.
[b] If dead-center indicator is not damaged, continue inspection.
4. Visually inspect condition of mating surfaces and/or bolting surfaces for damage.
[a] If mating surface and/or bolting surface are damaged, rub down with emery cloth or
an oilstone as necessary.
[b] If mating surfaces are beyond repair, replace component as necessary.
[c] If mating surface and/or bolting surface are not damaged, continue inspection.
5. Visually inspect condition of threads for damage or wear.
[a] If threads are damaged or worn, rechase threads as necessary.
[b] If damage is beyond repair, replace component.
[c] If threads are not damaged or worn, continue inspection.
Measure Crankshaft Bore in Flywheel Housing
Perform the following steps to measure crankshaft bore in flywheel housing.
All information subject to change without notice.
C -152
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