Westerbeke 50 User Manual

taken to avoid damage to any exposed parts and to avoid dirt entering
openings. The parts which have been removed should be returned to
position as soon as the restriction has been passed.
In case it is necessary to hoist the eng ine either front end··
upwards or reverse gear end upwards, the attachment of slings must be
done very carefully to avoid the possibility of damage to the parts on
which the weight may bear. It is best if special rigging work be done
by someone experienced and competent in the handling of heavy machi-
nery.
ENGINE BOLTS
It is recommended that bronze hanger bolts of appropriate size be
used through the engine flexible mounts. Lag screws are less pre-
ferred because their hold on the wood is weakened every time they are
moved, whereas the lag bolt stays in position and the nut on top is
used to tighten the engine down or is removed to permit the engine to
be lifted. The bolt itself stays in position at all times, as a stud,
and the bond between the bolt and the wood is not weakened by its
removal.
FOUNDATION FOR ENGINE
A good engine bed contributes much toward the satisfactory opera-
tion of the engine. The engine bed
must be of rigid construction and
neither deflect nor twist when sub-
jected to the engine weight or the
position the boat may have to take
under the effects of rough seas.
The bed must keep the engine within
one or two thousandths of an inch
of this position at all times. It
has to withstand the forward push
of the propeller which is applied
to the propeller shaft, to the
thrust washer bearing in the engine
and finally to the engine bolts and
engine bed.
In fiberglas hulls, we recom-
mend that similar wooden stringers
as in wooden hulls be formed and
fitted, then glassed to the hull
securely. This allows hanger bolts
to be installed firmly in wood,
thus reducing noise and transmitted
vibration.
The temptation to install the
engine on a pair of fiberglas
GOOD
A
BAD
B
"angle irons" should be resisted. Such construction will allow engine
vibrations to pass through to the hull. Flexible mounts require a
firm foundation against which to react if they are to do their job.
When possible, follow bed design "A" and avoid bed design liB".
PROPELLER COUPLING
Each Westerbeke Diesel engine is regularly fitted with a suitable
coupling connecting the propeller shaft to the engine.
6

Westerbeke 50 Specifications

General

Brand	Westerbeke
Model	50
Category	Engine
Language	English