TP-6071 3/00 9Section 3 Intake and Exhaust System
Section 3 Intake and Exhaust System
3.1 Air Intake Silencer
The 13--24EOZ models use a round, polyurethane,
sound-absorbing-type intake silencer to silence the
intake air drawn into the cylinder head from the intake
port. Besides providing a silencing effect, the silencer
also acts as an air cleaner. Clean the silencer more
frequently if operating in dirty, dusty conditions. See
Figure 3-1 and refer to the following procedure.
Air Intake Silencer Cleaning Procedure:
1. Remove the intake silencer cover.
2. Remove the element from the cover and inspect it.
To clean the element, continue to step 3. If the
element is damaged or in poor condition, replace
the element; skip step 3 and go to step 4. If the
element is clean go to step 6.
1. Air intake silencer cover
2. Air intake silencer element
3. Base
4. Clamp
5. Turbocharger
1
2
3
4
5
TP-6071-31
Figure 3-1 Air Intake Silencer
3. Wash the element in mild detergent and water
solution. Rinse the element and allow it to air dry.
4. Lightly coat the foam element with oil.
5. Squeeze out any excess oil.
6. Wipe the cover and base with a clean rag to remove
any dirt. Replace the base if it is damaged.
7. Reassemble the element and cover assembly to
the intake silencer base. Make sure the sealing
surfaces fit properly.
8. Direct the air intake silencer duct down and away
from engine.
3.2 Exhaust System Inspection
Carbon monoxide.
Can cause severe nausea,
fainting, or death.
The exhaust system must be
leakproof and routinely inspected.
WARNING
Inspecting the exhaust system. Carbon monoxide can
cause severe nausea, fainting, or death. For the safety of
the craft’s occupants, install a carbon monoxide detector.
Consult the boat builder or dealer for approved detector
location and installation. Inspect the detector before each
generator set use. In addition to routine exhaust system
inspection, test the carbon monoxide detector per the
manufacturer’s instructions and keep the detector operational
at all times.
Exhaust System. Check for exhaust leaks and
blockages. Check the silencer and piping condition and
check for tight exhaust system connections.
Inspect the exhaust system components (exhaust
manifold, mixing elbow, exhaust line, hose clamps,
silencer, and outlet flapper) for cracks, leaks, and
corrosion.
D Check the hoses for softness, cracks, leaks, or dents.
Replace the hoses as needed.
D Check for corroded or broken metal parts and replace
them as needed.
D Check for loose, corroded, or missing clamps.
Tighten or replace the hose clamps and/or hangers
as needed.
D Check that the exhaust outlet is unobstructed.
D Visually inspect for exhaust leaks (blowby). Check
for carbon or soot residue on exhaust components.
Carbon and soot residue indicates an exhaust leak.
Seal leaks as needed.
D Ensure that the carbon monoxide detector is (1) in the
craft, (2) functional. and (3) energized whenever the
generator set operates.
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