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Page Title:
ENGINE PRODUCES EXCESSIVE BLACK EXHAUST SMOKE - continued |
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 TM 10-3930-673-20-1
9. ENGINE PRODUCES EXCESSIVE BLACK EXHAUST SMOKE (CONT).
4
KNOWN INFO
TEST OPTIONS
Gear range for operation and load
Visual inspection.
Is turbocharger gasket free
OK.
REASON FOR QUESTION
from leaks? Is exhaust
Air intake and exhaust OK.
If air leaks between turbocharger
manifold free from signs of
Intake manifold to turbocharger
and exhaust manifold, engine will
OK.
cracks?
produce excessive black exhaust
POSSIBLE PROBLEMS
smoke.
Air leaks between turbocharger
and exhaust manifold.
Turbocharger malfunctioning,
faulty.
Replace gasket
(Para 5-6) and/or
NO
replace exhaust
manifold (Para 4-8).
YES
5
KNOWN INFO
TEST OPTIONS
Gear range for operation and load
Visual inspection.
Is turbocharger functioning
OK.
REASON FOR QUESTION
correctly?
Air intake and exhaust OK.
If turbocharger malfunctioning or
Intake manifold to turbocharger
faulty, engine will produce
OK.
excessive black exhaust smoke.
Turbocharger to exhaust manifold
OK.
POSSIBLE PROBLEMS
Turbocharger malfunctioning,
faulty.
Replace malfunctioning
NO
or faulty turbocharger
(Para 5-6).
YES
Notify Direct Support
about this fault.
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