Four winns vista Owner's Manual page 48

Figure E5: Prop Installation
NOTICE
Should it be necessary to change propellers, al-
ways use an appropriate propeller removal tool or
“Prop Puller.” DO NOT attempt removal using a
hammer. Damage to the propeller or propeller
shaft can result.
Always check shaft rotation before propeller installation.
A right hand rotation propeller must be installed on the
prop shaft connected to a starboard engine. Similarly, a
left hand prop must be connected to the port engine shaft.
The propellers must rotate outboard not inboard.
Be sure the propellers are of the correct blade configura-
tion, diameter, pitch, and shaft size to assure good perfor-
mance. For additional information on factors affecting
performance and/or assistance with your selection , please
consult your Four Winns dealer.
E - 5 ENGINE COOLING SYSTEMS
All marine engines use surface water as a cooling me-
dium. The cooling water employed enters the system
through a water intake and is relinquished through the
exhaust manifold system.
Inboards utilize a thru-hull water intake scoop. This type
of intake has an external strainer. Be sure this strainer is
kept free of mud, weeds and other debris. Some boating
areas require that additional strainers or water intake fil-
ters be installed. Reference Section P-3 - Equipment
Installation, in this manual for installation instructions and
consult your Four Winns dealer regarding any special
equipment that may be required.
348 Vista Owner’s Manual
08/01
A gate valve or seacock is provided at the intake scoop
previously described. Be sure this valve is in the open or
closed position dependent upon the desired flow of cool-
ing water.
Should an engine intake or an exhaust or cool-
ing hose rupture, turn the engine off and close
the seacock immediately. Proceed under tow if
necessary, to a service facility for appropriate
repairs; maintain a close visual watch on the
problem hose and also on the bilge water level.
Inboard boats utilize exhaust hose to relinquish cooling
water. A periodic inspection of the hose, muffler and re-
lated parts should be made to insure that leaks or heat
deterioration have not resulted. Replace them as neces-
sary.
Installation of “fresh water cooling” provides adequate en-
gine cooling without exposing the internal engine cooling
system to the detrimental effects of surface water. This
option is recommended when the boat will be operated
in salt, highly polluted or silt-laden water. Ask your
Four Winns dealer for recommendations regarding the
necessity of fresh water cooling in your boating area.
The Engine Owners Manual provides additional information
regarding service and maintenance of this equipment.
E - 6 ENGINE FLUSHING
The engine flush out option is offered on all Vista® mod-
els. The engine flushing kits attach permanently to the
engine. A fresh water supply can be connected to the
engine with the boat in the water. It is not intended for
use with the boat out of the water. This option is useful
to flush the engine cooling system of unwanted salt resi-
due.
The flush out kit should only be used with the boat in the
water and the engine OFF. See Section R - General
Maintenance for flushing procedures.
Section E
Page 6