Westerbeke ATOMIC 4 User Manual

shaft and move it along the pro-
peller shaft with the base pressed
firmly against the keel until the
shaft is approximately in the center
of the bear ing hole. Screw the strut
to the keel at this point but do not
tighten down. Using small wooden
wedges, center the propeller shaft
in the shaft hole. Make final ad-
justment of the strut and tighten
its hold-down screws and angle ad-
justing nuts securely.
3. INSTALLING ENGINE STRINGERS AND
BEDS
Engine stringers should now be in-
stalled (See Fig.6). These longi-
tudinal members should run at least
two-thirds the length of the hull,
and to them the engine bed will be
fastened. In most modern hulls,
these members will be included in
the hull plans and usually will be
placed to take an engine with 22~"
mount ing centers. If these str ingers
Fig.6 Photo of Engine Stringers
are not in place, they should be
constructed of 8" by 2" oak or
maple and should run from the tran-
som to at least three feet forward
of the engine location. The dis-
tance between them should be the
distance between mounting centers
of the engine plus one thickness
of the material to be used for en-
-7-
gine beds. They should rest firmly
on the hull ribs and be cross-braced
at intervals by notching into 2" by
8-" members .Lunning at right angles
to them. :~d braces and stringers
--
N[ fll,4fr CENT[R - -l-;;;FT TO JlANGER
_ _ ENG! lJUrANCe
IN-LINE PANGERS
--
r CEtJ
TER
- -1 JJlAFTTOIIAIVGEk
_ EtJu1tJE JHAf ..J.-- tJl/TAIVCE
_-t
)}/I/FT TO IIANGER \ ~f~;'i~
PlfTANC£ ~ _- _ - - ---:-- 8£0 --
- - ,-- - -- - - ----.
OFF5ET NANGI:RJ
Fig.7 Engine Bed vonstruction
should be drift-bolted together.
These cross-braces should conform
to the shape of the hull and those
that will be under the engine must
be cut to fit the contour of the
underside of the engine.
The next step is the construction
of the engine bed. (See Fig. 7).
These are pieces of 2" hardwood 8
n
to 10" longer than the length of
the engine. The width of the mate-
rial needed will depend on the angle
at which the engine is to be mounted,
the depth of the engine below the
shaft line, and the type of engine
hanger - that is, whether the han-
gers are parallel to the shaft line
or offset in height. The height of
these engine beds is easily deter-
mined by removing the propeller
shaft and stretching a string
through the strut, shaft hole and
stuffing box and fastening it to a
piece of stock tacked temporarily
in place somewhat forward of the
engine location.
A piece of engine bed material is
then placed on edge alongside the
string in the position ~here the
engine is to be mounted. It is then
a simple matter to measure down

Westerbeke ATOMIC 4 Specifications

General

Brand	Westerbeke
Model	ATOMIC 4
Category	Engine
Language	English