Ventilation and Drainage Systems
K - 1 ENGINE COMPARTMENT
VENTILATION
K - 2 HULL DRAINAGE SYSTEMS
A. Transom Drain
All.Four.Winns .stern.drive.models.are.equipped.with.
®
engine.compartment.ventilation..This.system.is.de-
signed.to.meet.or.exceed.the.requirements.(in.effect.
at.the.time.of.manufacture).of.the.U.S..Coast.Guard,.
the.National.Marine.Manufacturers.Association,.and.
the.American.Boat.and.Yacht.Council.
A.transom.drain.with.plug.is.provided.in.the.engine.
compartment.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. Natural Ventilation System
Be sure the drain plug is securely in place
prior to launching the boat. Upon shipment of
the boat, the drain plug is usually taped to the
steering wheel.
This.system.includes.air.intake.and.exhaust.com-
ponents..The.exhaust.ducting.reaches.to.the.lower.
bilge.area..This.provides.adequate.air.movement.
while.underway.and.during.bilge.blower.operation.
B. Forced Air Ventilation
B. Bilge Pumps
All.Four.Winns
®
.models.are.equipped.with.an.electric.
Bilge.pumps.are.provided.in.the.bottom.of.the.hull.to.
remove.miscellaneous.water.accumulations.that.might.
occur.during.normal.boating.or.weather.conditions..
The.bilge.pump.is.controlled.by.the.bilge.pump.switch.
on.the.dash.panel..See.Section.H-3.for.a.detailed.
description.of.the.bilge.pump.switches.
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.opera-
tion.instructions.
Bilge.pumps.equipped.with.automatic.switches.are.
standard.on.most.models..As.the.water.level.rises,.the.
automatic float switch will activate the pump.
Gasoline vapors can explode resulting in injury
or death. Before starting the engine, check
the engine compartment bilge for gasoline or
vapors, and operate blower for four () min-
utes, and verify blower operation. Run blower
when vessel is operating below cruising speed.
ALWAYS operate the bilge blower while the
engines are at idle.
When.leaving.the.boat.unattended.for.long.periods.of.
time.or.during.excessive.rain.storms,.it.is.a.good.idea.
to.check.on.the.boat.for.excessive.water.accumula-
tion. Be sure both the bilge pump and automatic float
switch.are.operating.properly..The.operating.time.of.
the.bilge.pump.will.be.limited.to.the.battery.capacity.
C. Engine Ventilation System Maintenance
NOTICE
Periodic.inspection.and.cleaning.of.the.ventilation.
ducts.is.necessary.to.ensure.adequate.air.circulation..
A.buildup.of.leaves,.twigs,.or.other.debris.can.se-
verely.reduce.ventilation..Be.sure.bilge.water.does.not.
accumulate.to.a.level.that.would.obstruct.the.ventila-
tion.ducts.
While at rest, any bilge water accumulation
may flow forward. Therefore, operate the bilge
pump shortly after getting underway and while
the boat is at a substantial running angle. DO
NOT allow bilge water to accumulate. Damage
to the engine or other components may result.
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.
Periodically,.clean.the.bilge.pump.strainers..DO.NOT.
allow.dirt.and.debris.to.clog.the.bilge.pump.intakes..
Check operation of the bilge pump float switch often
to.ensure.movement.of.the.switch.is.not.restricted.by.
debris,.portions.of.the.hull,.etc.
Should.blower.noise.and.vibration.be.excessive,.
loosening.the.bilge.blower.mounting.screws.and.then.
tightening.evenly.usually.reduces.noise.considerably.
Wipe.up.any.oil.accumulation.in.the.bilge.prior.to.
activation.of.the.bilge.pump..Pumping.oil.overboard.
will pollute the water, and is subject to fine.
Ventilation & Drainage Systems - Section K
Owner’s Manual Page
| Categories | Four Winns Manuals, Four Winns Vista Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Horizon 180, Four Winns Horizon 183, Four Winns Horizon 190, Four Winns Horizon 200, Four Winns Horizon 203, Four Winns Horizon 210, Four Winns Horizon 220, Four Winns Horizon 240, Four Winns Horizon 260 |
| Model Year | 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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