Owner`s manual

3-4
Section 3 Fuel System
C 260
3.4 Fuel System Maintenance
Spray the valves, fuel tank gauge sender
and ground connections with a metal protec-
tor.
Frequently inspect and lubricate the fuel fill
cap o-ring seals with petroleum jelly or sili-
cone grease. The o-ring seal prevents water
from entering the fuel system through the
fuel fill cap and it should be immediately
replaced if there is any sign of damage or
deterioration.
The age of gasoline can affect engine per-
formance. 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 gaso-
line to protect the fuel from degradation. Do
not allow the boat to sit unused for an
extended period with the fuel tanks less than
full. Changes in temperature and weather
conditions can cause condensation in fuel
tanks that are less than 3/4 full. Your dealer
or the engine manufacturer can provide
additional information on fuel degradation
and fuel stabilizers recommended for your
engine.
Improper marina fuel storage techniques,
limited boat usage, etc. can cause the fuel to
become contaminated. Periodically, it may
be necessary to pump accumulating water
and contaminated fuel from the bottom of
the fuel tanks. If the fuel system on your boat
becomes contaminated, contact your dealer
or marina for assistance.
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 mix-
ture 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 phase sepa-
ration from the use of alcohol blended fuels.
Diesel engine operation requires a good
supply of clean, dry diesel fuel. Algae can
grow in the accumulated water in the diesel
fuel tank. This condition is most prevalent in
warm climates. Periodically adding a high
quality diesel fuel additive containing an
algaecide may be required to control algae
in your boating area. Please contact your
Pursuit dealer or engine manufacturer for
additional information regarding fuels and
additives.
! DANGER
To reduce the risk of a fire and/or
explosion, do not start the engine(s)
when fuel fumes are present. Fuel
fumes are dangerous and harmful to
your health. Make sure all gasoline
odors are investigated immediately.
! WARNING
Periodically inspect all fuel filters,
primer bulbs, connections, clamps
and hoses for leakage and damage or
deterioration. Replace as necessary.
! WARNING
After the filter element has been
changed, prime the fuel system and
check all fittings for leaks before and
after starting the engines.