E - 3 ENGINE & DRIVE SYSTEM
the en gine mounted in the extreme stern of the boat
with the output shaft facing forward. A transmission
which performs shifting functions is mounted directly
onto the engine. A V-drive reduction gearbox is
mounted directly to the transmission. The prop shaft
is then connected to the V-drive output coupling.
See Figure E2.
The V375 model is equipped with twin engine propul-
sion. Depending on which model either stern drive or
inboard, a choice of Mercruiser , Crusader
or Volvo-Penta engines are offered. Please consult
the engine owner’s manual provided with this manual
for operation and maintenance information. See your
Four Winns dealer for complete engine availability.
B. Stern Drive
A stern drive or inboard/outboard propulsion system
has a piston engine equipped with special marine
components mounted near the transom and coupled
to an external outdrive-type transmission unit. Shifting
is performed within the outdrive upper gear case.
This type of system is depicted in Figure E1.
Figure E2: V-drive
Always return the engine throttle lever to the
extreme low speed position before shifting.
NEVER shift the unit while engine speed is
above 800 rpm.
E - 4 UNDERWATER EQUIPMENT
Avoid running aground or striking a
(submerged) object. Serious damage to the
engine(s) or inboard underwater gear can result
and the boat can take on water. In the event of
such an occurrence, proceed at low speed to
the nearest service facility and have an
immediate inspection made of the prop shafts
and struts before further use of the craft. Keep
all life saving devices at hand while driving to a
dock area. If the boat cannot be
Figure E1: Stern Drive
immediately removed from the water,
thoroughly inspect the bilge area for leaks
so that the boat does not sink while moored.
Consult the Engine Owner’s manual for additional
information on stern drives.
C. Inboard V-drives
A. Shaft Log
On the V-drive propulsion system of the inboards, all
shifting and gearing components are installed inside
of the hull, only the propeller shafts and associated
equipment are under water. The V-drive system has
The shaft log allows the propeller shaft to extend and
rotate through the hull with only limited water leakage
occurring. Minor dripping may occur and is not
abnormal during operation. See Figure E2 & E3.
Engines, Drives and Instrumentation - Section E
Owner’s Manual Page 55
|Categories||Four Winns Manuals, Four Winns V-Series Manuals|
|Tags||Four Winns V375|
|Document Type||Owner's Manual|
|Product Brand||Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx|
|Document File Type|
|Wikipedia's Page||Outboard Marine Corporation|
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