NOISE AND EMISSION CONTROL
5
Air Intake System Engine Mounted Noise Insulators
• Do all checks and maintenance • Check condition. Is the insulator
procedures listed in this manual secure? How you do this will
under Engine Air Intake System depend on the method of attaching
and Air
Cleaner. See Air Dryer on the noise insulators on the engine
page 5-
51. and around the oil pan (bolts,
snap fasteners,
or straps). Tighten
• Check the induction tubing, elbow
loose fasteners
and repair or
connections, clamps,
brackets,
replace any
worn or damaged
and fasteners
for deterioration,
fasteners.
cracks, and
security.
• Check insulators around fasteners
• If you nd an air leak anywhere
and stress
points, especially
between the
air cleaner and
where they
may be affected by
the engine,
repair that leak
engine vibration.
Repair any
immediately.
cracked or
damaged mounting
points. Use suitable reinforcing
plates to ensure that the insulators
Air leaks cause excessive noise and
CAUTION
will remain in position.
may result in serious damage to the
engine. If you do not repair them the
engine damage will not be covered by
your warranty. Repair all air leaks as
soon as you nd them.
Exhaust System
• Check for exhaust leaks,
which would indicate a leaking
manifold gasket; replace gasket if
necessary.
• Check cap screws for tightness,
including those at the anges.
Refer to the engine manufacturer's
service manual for proper
tightening sequence and torque
values.
5-118 Y53-6047–2C (04/13)
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