Detroit Diesel 4000 Series, Service Manual, Page: 949 / 2706

SERIES 4000 12/16V SERVICE MANUAL
To avoid an eye injury when blow drying parts, wear
adequate eye protection (safety glasses or faceplate) and
do not exceed 276 kPa (40 lb/in.
2 ) air pressure.
4. Blow out fuel line with compressed air and make sure it is perfectly clean.
5. Inspect fuel line with air under water for leakage.
[a] If leakage is found, replace fuel line.
[b] If no leakage is found, continue inspection.
6. Coolant temperature minimum is 30 C; components must also be at this temperature.
7. If component must be held in hands, coolant temperature maximum is 40 C.
8. Test pressure is 0.5 bar.
9. Visually inspect securing elements of fuel line for wear and damage.
[a] If securing elements of fuel line are worn or damaged, replace components as
necessary.
[b] If securing elements of fuel line are not worn or damaged, continue inspection.
10. Inspect threads of adaptor nuts and single-ended adaptors for ease of movement.
[a] If threads of adaptor nuts and single-ended adaptors do not show ease of movement,
recondition or replace parts as necessary.
[b] If threads of adaptor nuts and single-ended adaptors show ease of movement,
continue inspection.
11. Inspect securing bolts for general condition and bolt threads for ease of movement.
[a] If securing bolts are not in good condition or threads do not show ease of movement,
replace bolts as necessary.
[b] If securing bolts are in good condition and threads show ease of movement, continue
inspection.
12. Inspect cylinder block studs for general condition and stud threads for ease of movement.
[a] If cylinder block studs are not in good condition or threads do not show ease of
movement, replace studs as necessary.
[b] If cylinder block studs are in good condition and threads show ease of movement,
continue inspection.
13. Visually inspect sealing and mating surfaces for damage and defects.
[a] If sealing and mating surfaces are damaged or defective, rub down with oilstone
as necessary.
[b] If sealing and mating surfaces are not damaged or defective, continue inspection.
All information subject to change without notice.
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