Westerbeke ATOMIC 4 User Manual

11. V-DRIVE INSTALLATION
In recent years two factors have
had a great influence on power for
outboard type hulls. One of these
is the demand for greater speed and
the other a requirement for engines
with sufficient power for towing
water skiers. In many cases the de-
mand for additional power and speed
has been met by the use of a higher
horsepower outboard or by instal-
ling twin motors. A second solution
has been the installation of an in-
board engine ~ith V-drive.
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\\\\~--~C~R~A~NK~S~H~~~~~I
AFT LINE 7"
\ \ FROM HORIZ,
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In this case, the keel should be
leveled from the transom to about
six feet forward to aid in deter-
mining the shaft bole location and
angle.
Location of tbe sbaft hole and de-
termining its angle are tbe next
steps. Any of tbe methods described
before will work. However, since
the keel bas been leveled and the
distances involved are short, de-
termination of the shaft angle by
means of a simple, full-size sketch
is the easiest (See Fig. 12). In
I I .+
\ \ ENGINE SHAFT ANGLE 24"
\\'\~I--------~~----~--~~~~~~~~--~
'II, KEEL KEEL
r--=13f~ 3°
-Lc J~
INSIDE EDGE
Dr TRANSOM
Fig. 12 Typical Sbaft Location
These V-drive engines are designed
to be mounted in tbe extreme stern
of tbe boat. Tbey are suitable for
most outboard bulls 17' and over
and are being used successfully in
houseboat hulls up to 32' in lengtb.
Tbe installation of a V-drive engine
differs from the installation of a
conventional drive engine in that
the engine is mounted aft and in
the reverse position, witb tbe fly-
wheel toward the stern of tbe boat.
Tbe installation of a typical V-
drive engine will be described berea
The general principles and prac-
tices will serve for most V-drive
engines altbougb tbe angles and
dimensions may vary.
Preparation for mounting the V-
drive engine is like that for
mounting conventional engines and
tbe same steps are followed in
each case. As before, the first
step is the blocking up of the boat.
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WEDGE DIMENSIONS
MATERIAL - MAHOGANY
KEEL THICKNESS
F
H
1'/2"
''Ia''
"//6
"
-
15/
s
"
1'/." 91,& "
,'/ .....
1'/8" 7/" "
, 7/8"
, "
5/ ....
2"
'le"
'11,"
Fig. 13 Wedge Sizes
making this sketch, two parallel
lines are dralm approximately six
feet long, with the distance be-
tween tbem equalling the thickness
of the keel. A line is then drawn
on
tbe sketch, indicat ing the crank-
sbaft center, at an angle to the
keel equal to the recommended engine
mounting angle (7
0
in Fig. 12). The
prop sbaft line is now drawn slant-
ing down and through the keel at an
angle to the crankshaft line equal
to the engine sbaft angle. This
angle is obtained from the manufac-
turer's scale d.rawings or from ac-
tual measurement of·the engine (24
0
in Fig. 12). A third line is tben
drawn from the point tbe shaft line
intersects the top of the keel, at

Westerbeke ATOMIC 4 Specifications

General

Brand	Westerbeke
Model	ATOMIC 4
Category	Engine
Language	English