™
Changing either diameter or pitch will have an effect on
engine speed and prop slip, and in turn, directly effect the
performance of a boat. The propellers included with each
Four Winns® boat provide the best general performance
based on data obtained from on-the-water testing of that
model. Variations in load, operating conditions, environ-
ment, the individual engine and hull performance may ne-
cessitate the purchase and use of another propeller(s).
NOTICE
Should it be necessary to change propellers,
alwaysuseanappropriatepropellerremovaltool
or “Prop Puller.” DO NOT attempt removal us-
ing a hammer. Damage to the propeller or pro-
peller 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
lefthandpropmustbeconnectedtotheportengineshaft.
The propellers must rotate outboard not inboard.
Under your normal load conditions, the engines should
turn within the maximum RPM range when at full throttle.
IftheenginesexceedtherecommendedRPM,anincrease
in pitch or diameter is required. If the engine RPM is too
low, a decrease in pitch or diameter is required.
Be sure the propellers are of the correct blade configura-
tion, diameter, pitch, and shaft size to assure good per-
formance. Foradditionalinformationonfactorsaffecting
performance and/or assistance with your selection,
please consult your Four Winns dealer.
The load carried in a boat will directly affect performance
oftheengine. If anenginethatisnotdevelopingfullpower,
be sure the engine is properly tuned and load conditions
are those normally experienced, before changing propel-
lers.
E - 6
ENGINECOOLINGSYSTEMS
NOTICE
For twin engine installations, always check drive
shaft rotation before propeller installation. Aright
hand rotation propeller must be installed on the
starboard propeller shaft. Similarly, a left hand
propmustbeinstalledontheport propeller shaft.
A. Raw Water Cooling - Stern Drives & Inboards
The cooling system is a seawater system. Seawater
(raw) water is taken in through water inlets on the both
sides of the lower gear unit of the stern drives models or
by thru-hull intake scoops with strainers (inboards).
Water pumped to the engine by the seawater pump is
circulated through the engine by the engine circulating
pump. Athermostat controls the engine operating tem-
perature by determining the amount of water to be taken
in, recirculated and discharged. On stern drive models,
the water is discharged through an idle exhaust relief
and the exhaust through the propeller hub. Inboard
models expel water and exhaust through exhaust ports.
Atemperaturegauge(s)locatedonyourinstrumentpanel
monitors engine(s) temperatures.
For shipping reasons, the propellers are not factory in-
stalled. Initial installation of the propellers will be per-
formedbythedealerduringpre-deliveryservice. SeeFig-
ure E6.
NOTICE
Inboardboatsutilizeexhausthoses torelinquish
coolingwater. Aperiodicinspectionofthehoses,
muffler and related parts should be made to in-
sure that leaks or heat deterioration have not
resulted. Replace them as necessary.
Never operate your engine without a thermo-
stat. Engine damage can occur and is consid-
eredoperatornegligenceandthereforenotcov-
ered under the engine warranty.
Figure E6: Prop Installation
Vista™ Owner’s Manual
Section E
Page6
| Categories | Four Winns Manuals, Four Winns Vista Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Vista 248, Four Winns Vista 268, Four Winns Vista 288, Four Winns Vista 298, Four Winns Vista 328, Four Winns Vista 348 |
| Model Year | 2004, 2005, 2006, 2007, 2008 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx |
| Document File Type | |
| Publisher | fourwinns.com |
| Wikipedia's Page | Outboard Marine Corporation |
| Copyright | Attribution Non-commercial |
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