Ventilation and Drainage Systems
K - 1 ENGINE COMPARTMENT
VENTILATION
K - 2 DAY BERTH & HEAD VENTILATION
The Day Berth and Head compartment are equipped
All Four Winns
®
stern drive models are equipped with
with hatches which can be placed in the open posi-
tion for ventilation purposes. The Day Berth window
also slides opens to provide ventilation. See Figure
K1. The side windows (portlights) may be opened to
provide additional ventilation for both the Day Berth
and Head compartment areas.
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. Natural Ventilation System
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
All Four Winns models 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 opera-
tion instructions.
Figure K1: Day Berth Window
Failure to properly ventilate the boat while the
engines or generator are operating may permit
carbon monoxide to accumulate inside the
accommodation (occupied) spaces. Refer to
Section E-2 - Engine Exhaust and Section B-2 -
Carbon Monoxide for additional information.
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 (4) 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.
NOTICE
Be sure hatches are secured while underway.
Damage to the hatches may result.
C. Engine Ventilation System Maintenance
K - 3 HULL DRAINAGE SYSTEMS
A. Transom Drain
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.
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
stor age will flow towards the tran som.
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.
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.
Should blower noise and vibration be excessive,
loosening the bilge blower mounting screws and then
tightening evenly usually reduces noise considerably.
Ventilation & Drainage Systems - Section K
Owner’s Manual Page 99
| Categories | Four Winns H-Series Manuals, Four Winns Manuals |
|---|---|
| Tags | Four Winns H310 |
| Model Year | 2011 |
| 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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