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Page Title:
EXCESSIVE OIL CONSUMPTION OR BLUE EXHAUST SMOKE (ENGINE AT NORMAL OPERATING TEMPERATURE). (Cont) |
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 TM 9-2320-364-34-1
5. EXCESSIVE OIL CONSUMPTION OR BLUE EXHAUST SMOKE (CONT).
2.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Unit Troubleshooting tasks
Visual inspection.
on Page 2-95
completed.
Crankshaft front cover and oil
REASON FOR QUESTION
seal OK.
Is engine coolant clean (free
Engine oil in coolant indicates oil
from engine lubricating oil)?
POSSIBLE PROBLEMS
is leaking from oil cooler into
coolant. Engine oil consumption
Oil cooler leaking oil into
will be high and blue exhaust
coolant.
smoke may be produced.
Rear crankshaft oil seal leaks.
Turbocharger oil seal faulty.
Blower leaking oil.
Cylinder head damaged/leaking.
Piston rings faulty.
Replace oil cooler
(Para 3-29).
NO
Verify repair, go to
Step 8 of this Fault.
YES
3.
KNOWN INFO
TEST OPTIONS
Unit Troubleshooting tasks
Visual inspection.
Is rear crankshaft oil seal free
completed.
from leaks?
Crankshaft front cover and oil
REASON FOR QUESTION
seal OK.
Oil cooler OK.
If rear crankshaft oil seal leaks,
engine oil consumption will be
POSSIBLE PROBLEMS
high.
Rear crankshaft oil seal leaks.
Turbocharger oil seal faulty.
Blower leaking oil.
Cylinder head damaged/leaking.
Piston rings faulty.
Replace rear oil seal
(Para 3-14).
NO
Verify repair, go to
Step 8 of this Fault.
YES
2-94
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