Noise and Emission Control Emergency repairs
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Exhaust System
• Removing or rendering inoperative
exhaust system components.
Fuel System
• Removing or rendering engine
speed governor inoperative, allow-
ing engine speed to exceed manu-
facturer's specifications.
• Removing of air signal attenuator
on engines equipped with this
device.
Inner Fender Shields
• Removing shield.
• Cutting away parts of shields or
damaged or loose portions of
shields.
Noise Insulating Blankets
• Removing noise insulators from
engine block or from around the oil
pan.
• Cutting holes in, or cutting away
part of noise insulators.
• Removing hood-mounted noise
insulation.
Inspection and Maintenance
Instructions
If, during periodic inspection and main-
tenance of other systems and compo-
nents, it is found that parts of the noise
control system require attention, we
recommend that those parts be
inspected at more frequent intervals to
assure adequate maintenance and per-
formance.
Air Intake System
• Do all checks and maintenance
procedures listed in this manual
under Engine Air Intake System
and Air Cleaner. See “
Maintenance
and Lubrication Intervals” on
page 72.
• Check the air intake tubing, elbow
connections, clamps, brackets, and
fasteners for deterioration, cracks,
and condition.
• If you find an air leak anywhere
between the air cleaner and the
engine, repair that leak immedi-
ately.
CAUTION: Air leaks cause
excessive noise and may
result in serious damage to
the engine. If you do not
repair them the engine dam-
age will not be covered by
your warranty. Repair all air
leaks as soon as you find
them.
Exhaust System
• Check for exhaust leaks, which
could indicate a leaking manifold
gasket; replace gasket if neces-
sary.
PB1340A.book Page 104 Friday, September 1, 2000 7:40 AM
