VENTILATION & DRAINAGE SYSTEMS
Should blower noise and vibration be excessive, loosen-
ing the bilge blower mounting screws and then tightening
evenly usually reduces noise considerably.
K - 1 ENGINECOMPARTMENTVENTILATION
All Four Winns® stern drive models are equipped with
enginecompartmentventilation. Thissystemisdesigned
to meet or exceed the requirements (in effect at the time
of manufacture) of the U.S. Coast Guard, the National
MarineManufacturersAssociation,andtheAmericanBoat
and Yacht Council.
K - 2 HULLDRAINAGESYSTEMS
A. Transom Drain
A transom drain with plug is provided in the engine com-
partment to allow water drainage. When the boat is out
of the water, the boat and trailer should be positioned so
any bilge water accumulation during dry storage will flow
towards the transom.
A. Gravity Ventilation System
Thissystemincludesairintakeandexhaustcomponents.
Theexhaustductingreachestothelowerbilgearea. This
providesadequateairmovementwhileunderwayanddur-
ing bilge blower operation.
B. Forced Air Ventilation
Be sure the drain plug is securely in place prior
tolaunchingtheboat. Uponshipmentoftheboat,
the drain plug is usually taped to the steering
wheel.
All Four Winns® models except outboards are equipped
with an electric bilge blower. The bilge blower provides
the ventilation required prior to starting the engines and
while at idle. See Section H - Electrical Systems for
blower operation instructions.
B. Bilge Pumps
Bilge pumps are provided in the bottom of the hull to re-
move miscellaneous water accumulations that might oc-
cur during normal boating or weather conditions. The
bilge pump is controlled by the bilge pump switch on the
dash panel. See SectionH-3 for a detailed description of
the bilge pump switches.
Gasoline vapors can explode resulting in injury
or death. Before starting the engine, check the
enginecompartmentbilge forgasolineorvapors,
andoperateblowerforfour(4)minutes,andverify
blower operation. Run blower when vessel is
operating below cruising speed. ALWAYSoper-
ate the bilge blower while the engines are at idle.
Bilge pumps equipped with automatic switches are stan-
dard on all Freedom™ and Horizon™ models. As the
water level rises, the automatic float switch will activate
the pump.
C. Engine Ventilation System Maintenance
Whenleavingtheboatunattendedforlongperiodsoftime
or during excessive rain storms, it is a good idea to check
on the boat for excessive water accumulation. Be sure
both the bilge pump and automatic float switch are oper-
ating properly. The operating time of the bilge pump will
be limited to the battery capacity.
Periodic inspection and cleaning of the ventilation ducts
isnecessarytoensureadequateaircirculation. Abuildup
of leaves, twigs, or other debris can severely reduce ven-
tilation. Be sure bilge water does not accumulate to a
level that would obstruct the ventilation ducts.
Blower operation can be tested by placing a hand over
the vents. DO NOT rely on the sound of the blower. Be
sure a substantial amount of air is being exhausted by
the bilge blower. Check the bilge blower system often,
preferably before each cruise.
Freedom™/Horizon™ Owner’s Manual
Section K
Page 1
| Categories | Four Winns Freedom Manuals, Four Winns Horizon Manuals, Four Winns Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Freedom 170, Four Winns Freedom 180, Four Winns Horizon 170, Four Winns Horizon 180, Four Winns Horizon 190, Four Winns Horizon 200, Four Winns Horizon 210, Four Winns Horizon 230, Four Winns Horizon 250, Four Winns Horizon 280 |
| Model Year | 2003, 2004, 2005 |
| 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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