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Chapter 3 • Systems Overview & Operation
Example of Phase Separation
Fig. 3.8.1
4
1
CONDENSATION
2
UPPER PHASE (WATER+FUEL+ETHANOL)
3
LOWER PHASE (WATER+ETHANOL)
4
FUEL INLET TO ENGINE
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 until it stops.
• Top off fuel tank, leaving space for
expansion. Do not fill to point of
overflow.
• Do not cap the tank vent.
3-8
A partially full tank is not recommended because
the void above the fuel allows air movement that
1
2
can bring in water through condensation as the air
temperature moves up and down. This condensation
could potentially become a problem.
REFER TO THE ENGINE MANUFACTURER'S MANUAL
IN YOUR OWNER'S MANUAL PACKET FOR COMPLETE
INSTRUCTIONS AND WARRANTY.
3
Power Steering
The Verado four-stroke engines
use enclosed hydraulic pump
units. The pumps are electrically
operated to provide hydraulic
pressure to the steering system.
The pumps are located in the
forward center of the bilge and
can be accessed by lifting the
equipment hatch in the aft cockpit deck.
Filling and Maintenance
The system is virtually maintenance free, aside
from regular fluid checks and visually inspecting
the outside of the unit for signs of leaks or damage.
Check the fluid level before each trip.
Proper maintenance of this system will ensure worry-
free usage for the life of your boat. Steering system
• Remove the pump cover
by pulling up and out on
the locking tabs on the
sides of the unit.
• Unscrew the cap
and check the
fluid level in
the reservoir, fill
only with SAE
10W-30 Full
Synthetic Power
Steering Fluid if necessary.
• Replace cap and cover
R
420 Outrage
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