Boston Whaler 235 Conquest, Руководство пользователя

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3-4
235 Conquest
Section 3 • Systems & Components Overview & Operation
R
Example of Phase Separation
Fig. 3.5.1
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CONDENSATION
UPPER PHASE (WATER+FUEL+ETHANOL)
LOWER PHASE (WATER+ETHANOL)
FUEL INLET TO ENGINE
Phase Separation
Humidity and condensation create water in your fuel tank
which can adversly effect the ethanol blended fuel. A
condition called phase separation can occur if water is
drawn into the fuel beyond the saturation point. The
presence of water in the fuel beyond the saturation level
will cause most of the ethanol in the fuel to separate from
the bulk fuel and drop to the bottom of the tank,
significantly reducing the level of ethanol in the fuel mixture
in the upper level (phase). If the lower level (phase),
consisting of water and ethanol, is deep enough to reach
the fuel inlet, it could be pumped directly to the engine(s)
The use of fuels containing ethanol higher than
10 percent (E-10) can damage your engine and/
or fuel system and will void the warranty.
!
CAUTION
E85 FUELS COULD SERIOUSLY DAMAGE YOUR
ENGINES AND MUST NEVER BE USED.
your dealer if any components have been added or
replaced that are not recommended by Boston Whaler,
Mercury or may not be ethanol-compatible.
Filling the Tank
It is best to maintain a full tank of fuel when the engine is
not in use. This will reduce air flow in and out of the tank
due to changes in temperature as well as limiting exposure
of the ethanol in the fuel to humidity and condensation.
and cause significant problems. Engine problems can also
result from the reduced ethanol/fuel mixture left in the
upper phase of the tank.
Additives
There is no practical additive known that can prevent or
correct phase separation. The only solution is to keep
water from accumulating in the tank.
If phase separation does occur, your only remedy is to
drain the fuel, clean and dry the tank completely and
refill with a fresh, dry load of fuel.
Fuel Filters
Mercury already provides the appropriate level of
filtration to protect the engine from debris. The addition
of another
in-line filter to the system will create a possible
flow restriction that can starve the engine(s) of fuel.
it is advisable to carry extra on-engine filters in case
filter plugging from debris in the fuel tank becomes a
problem during boating.
Maintenance
Periodically inspect for the presence of water in the fuel
tank. If any is found, all water must be removed and the
tank completely dried before refilling the tank with any
fuel containing ethanol.
Storage
Long periods of storage and/or non-use, common to
boats, create unique problems. When preparing to store
a boat for extended periods, of two months or more, it
is best to completely remove all fuel from the tank. If it is
not possible to remove the fuel, maintaining a full tank of
fuel with a fuel stabilizer added to provide fuel stability
and corrosion protection is recommended.
• Add fuel stabilizer/treatment at
manufacturers recommended dosage.
• Run engine(s) for 10 minutes.
• Shut OFF fuel valve.
Allow engine to run util it stops.