Boston Whaler 420 OUTRAGE, Owner'S Manual

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3-5 420 Outrage
Chapter 3 • Systems Overview & Operation
420 Outrage
R
NOTICE
It is your responsibility to read and understand
the engine manufacturer’s manual in your
owner’s manual packet for complete fuel and
fueling information and warnings.
!
CAUTION
Use of improper fuel can seriously damage your
engine. Engine damage resulting from use of
improper fuel is considered misuse of engine
and will void the warranty. Follow engine
manufacturer’s recommendations regarding
the types of fuel and oil to use.
non-usable portion of the tank which results from the
fuel in the tank that is below the pickup tube and the
ullage area that has been incorporated into your tank.
It is recommended that you follow all instructions
regarding the filling of fuel tanks. Please take time to
read and understand all the fuel related information
and warnings regarding gasoline and your boat, in
the engine owner’s packet. Fuel tanks with levels
less than 1/4 full can cause engine stalling problems
due to fuel starvation or by allowing sediment and
dirt to enter the fuel supply lines. Keep the tank full
and monitor the fuel level often to prevent this from
happening.
Fuel Vent
The fuel tank vent is integrated into the fuel fill
deck fitting (see fig. 3.4.1). The VaporTec fuel
pressure management system, (fuel fill deck fitting,
integrated check valve, fill limit vent valve, grade
valve), ensures that the fuel system constantly
maintains proper vapor pressure in all situations.
This eliminates any unintended pressure which can
seriously damage a boat or engine. The vent serves
as an over pressure/vacuum release with anti-surge
and flame/spark arresting protection. The fuel vent
system also plays an important role in controlling the
“FULL” level of fuel with the use of the FLVV (Fill
Limit Vent Valve). Grade Valves have been added to
the tank which allows proper ventilation of the tank
when the boat is stored, or trailered, on a moderate
incline, without fuel seepage.
The use of a portable fuel tank to fill your boat’s
tank can result in overfilling and circumvent the
safety features designed into your tank.
!
WARNING
The modification of any fuel system components
or the replacement of these components
with unauthorized parts may result in over-
pressurization of fuel system and circumvent
the safety features designed into your tank.
!
WARNING
Fuel Distribution System
The fuel is delivered from the tank to the engine
through the Fuel Demand Valve (FDV), anti-siphon
valve, and the fuel line. The FDV prevents the built
up pressure inside the tank from being transferred
to the engine while still allowing fuel to flow as the
engine requires it for operation. The anti-siphon valve
is a safety feature designed to prevent the fuel from
siphoning out of the tank if the fuel line were to be
cut or broken below the level of the fuel in the tank.
In this case, some fuel would leak from the line, but
would not allow the entire contents of the tank to
siphon into the boat.
Filling the Tank
This fuel system is designed to automatically shut
off the fuel nozzle when the tank is full, similar to an
automotive fuel system. The tank is filled when the
fuel fill nozzle has shut itself off the second time. The
SecureStop automatic fuel shut off system (Fuel Fill
Deck Fitting, Integrated Check Valve, Fill Limit Vent
Valve), guarantees the boater a clean a trouble-free
fill -up. Details such as the valve design and deck
fill nozzle retention features ensure consistent fill-
up/shutoff. Attempting to fill the tank past this point
may cause some of the components to not function
properly, or malfunction.
The fuel system on this vessel complies with
all applicable ABYC standards. Fueling station
pump flow rates that exceed 18 gallons
(68 liters) per minute may damage system
components and cause fuel leakage into the
vessel.
!
WARNING