PURSUIT 2460 Denali, Owner'S Manual

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2460 Denali
13.4 Bilge and Engine Compartment
To keep the bilge clean and fresh, use a commercial bilge cleaner regularly. Follow the directions
carefully. The engine and engine room should be kept clean and free of oil accumulation and debris.
All exposed pumps and metal components, including the engine and drive gear, should be sprayed
periodically with a protector to reduce the corrosive effects of the high humidity always present in
these areas.
Maintenance intervals are outlined in the engine owner’s manuals. Their recommendations should
be followed exactly.
Periodically check the bilge pumps for proper operation and clean debris from the strainers and float
switches. Inspect all hoses, clamps and thru-hulls for leaks and tightness on a regular basis and
operate all thru-hull valves at least once a month to keep them operating properly.
A flow of air into the bilge is provided by vents located in the hull. Periodic inspection and cleaning
of the ventilation ducts is necessary to ensure adequate air circulation.
Engines
Proper engine maintenance is essential to the proper performance and reliability of your sterndrive
engine. Maintenance schedules and procedures are outlined in your engine owner’s manual. They
should be followed exactly.
The age of gasoline can affect engine performance. Chemical changes occur as the gasoline ages
that can cause deposits and varnish in the fuel system as well as reduce the octane rating of the fuel.
Severely degraded fuel can damage the engine and boat fuel tank and lines. Therefore, if your boat
is not being run enough to require at least one full tank of fresh fuel a month, a fuel stabilizer should
be added to the gasoline to protect the fuel from degradation. Your dealer or the engine
manufacturer can provide additional information on fuel degradation and fuel stabilizers recom-
mended for your engine.
Avoid using fuels with alcohol additives. Gasoline that is an alcohol blend will absorb moisture
from the air which can reach such concentrations that "phase separation" can occur whereby the
water and alcohol mixture becomes heavy enough to settle out of the gasoline to the bottom of the
tank. Since the fuel pick up tube is very near the bottom of the tank, phase separation can cause
the engine to run very poorly or not at all. This condition is more severe with methyl alcohol and
will worsen as the alcohol content increases. Water or a jelly like substance in the fuel filters is an
indication of possible phase separation from the use of alcohol blended fuels.
If the engine is raw water cooled and used in saltwater, flush the cooling system after each daily
use. To flush the system when the boat is out of the water, follow the procedure outlined in your
engine owner’s manual.
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