SECTION 5
TROUBLESHOOTING
TABLE 5-1
TROUBLE ANALYSIS FOR DETROIT DIESEL ENGINE (CONT.).
CORRECTIVE ACTION
PROBABLE CAUSE
TROUBLE
Replace damaged or clogged air
Insufficient air.
Lack Of Power
cleaner.
(Cont.)
Temperature must be less than
High return fuel temperature.
150 F. (64C). Install larger fuel
lines.
Relocate engine air intake to provide
High ambient air temperature.
cooler air source.
Clean the air box and drain tubes.
Oil picked up by air stream.
Detonation
Inspect blower oil seals; if seals
are defective, overhaul blower.
Check for defective blower-to-
cylinder block gasket.
Check injector timing and position
Faulty injectors.
of each injector rack. Replace in-
jector if necessary.
Fill fuel tank with specified fuel
Low fuel supply.
No Fuel Or
Refer to Section 4).
Insufficient Fuel
Tighten loose connections.
Loose fuel line connections.
Replace gasket-
Damaged fuel oil strainer gasket.
Replace faulty injectors.
Faulty injector tip assembly.
Replace fuel filter, strainers or
Fuel strainer or lines restricted.
lines if necessary.
Clean and inspect valve assembly.
Fuel pump relief valve not seating.
Replace gear and shaft assembly or
Worn gears or pump body.
the pump body.
Check the condition of the fuel pump
Fuel pump not rotating.
drive and blower drive and replace
the defective parts.
Tighten or replace defective ports.
Oil lines or connections leaking.
High Lubricating
Oil Consumption
Replace defective gasket or oil seal.
Gasket or oil seal leaks
Clean air box and drain tubes. ln-
Excessive oil in air box.
spect blower oil seals; if seals are
defective, overhaul blower. Check
for defective blower-to-cylinder
block gasket.
5-16.
