TM 9-2320-365-20-1
2-122
2.
Engine may operate with
excessive noise or
vibration when exhaust
manifold is loose or
leaking.
YES
NO
KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
Notify DS Maintenance.
Visual inspection
Notify DS Maintenance.
POSSIBLE PROBLEMS
Loose or leaking exhaust
manifold.
Tailpipe, muffler,
exhaust junction to
muffler pipe, exhaust
pipe bracket assembly(s),
engine to junction
exhaust pipe, and clamp
halves OK.
Is exhaust
manifold free from
leaks or damage?
c1. EXHAUST SYSTEM UNUSUALLY NOISY OR VIBRATES EXCESSIVELY DURING ENGINE OPERATION
(WITHOUT EXHAUST RESTRICTOR) (CONT)