Owner`s manual

3100 OFFSHORE
110
13.5 Bilge and Engine Compartment
To keep the bilge clean and fresh, use a commercial bilge cleaner regularly. Follow the directions carefully.
The engines and engine room should be kept clean and free of oil accumulation and debris. All exposed pumps
and metal components, including the engines 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 inboard engines.
Maintenance schedules and procedures are outlined in your engine owner’s manual. They should be followed
exactly.
Proper engine operation requires a good supply of clean, dry fuel. Improper marina fuel storage techniques,
limited boat usage, etc. can cause the fuel to become contaminated. Periodically, it may be necessary to siphon
accumulating water and contaminated fuel from the bottom of the fuel tanks.
Algae can grow in the accumulated water in diesel fuel tanks. This condition is most prevalent in warm
climates. Periodically adding a high quality diesel fuel additive containing an algicide may be required to
control algae in your boating area.
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 recommended 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.
Please contact your Pursuit dealer or engine manufacturer for additional information regarding fuels and
additives.
If the boat 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.