INTRODUCTION
This service manual contains detailed information relating to
the proper operation
of
the major components and systems
of
the engine
or
generator. Included are disassembly, inspection,
service, and reassembly instructions for the guidance
of
suit-
ably equipped and staffed marine engine service and rebuild-
ing facilities. The necessary procedures should be undertaken
only by such facilities and their personnel. Refer also to your
Westerbeke parts catalog when performing an engine over-
haul.
PRODUCT
SOFTWARE
Product software (tech data, parts lists, manuals, brochures
and catalogs) provided from sources other than WESTER-
BEKE are not within
WESTERBEKE'S
control.
WESTERBEKE CANNOT BE RESPONSIBLE FOR
THE
CONTENT OF SUCH SOFTWARE, MAKES NO
WAR-
RANTIES OR REPRESENTATIONS
WITH
RESPECT
THERETO,
INCLUDING ACCURACY, TIMELINESS OR
COMPLETENESS
THEREOF AND
WILL
IN NO EVENT
BE LIABLE FOR
ANY
TYPE OF DAMAGE OR INJURY
INCURRED
IN CONNECTION WITH OR ARISING OUT
OF
THE
FURNISHING OR
USE
OF SUCH SOFTWARE.
WESTERBEKE customers should also keep in mind the
time span between printings
of
WESTERBEKE product soft-
ware and the unavoidable existence
of
earlier WESTER-
BEKE
manuals.
In
summation, product software provided
with WESTERBEKE products, whether from WESTER-
BEKE or other suppliers, must not and cannot be relied upon
exclusively as the definitive authority on the respective prod-
uct.
It
not only makes good sense but
is
imperative that
appropriate representatives
of
WESTERBEKE
or
the sup-
plier
in
question be consulted to determine the accuracy and
currentness
of
the product software being consulted by the
customer.
ENGINE/GENERATOR
MODEL
DESIGNATIONS
This manual contains certain descriptions, procedures and
specifications that vary depending on the engine/generator
model. Where references to specific models are necessary,
three basic model group designations are used:
A
MODELS
B
MODELS
C
MODELS
ENGINES
GENERATORS
ENGINES
GENERATORS
ENGINES
GENERATORS
60Hz
50Hz
60Hz
50Hz
60Hz
50Hz
388
Four
11.0
BTD
8.3
BTD
W·33
WMO
12.5
WMD9.4
42B
Four
12.5
BTDA
9.4
BTDA
W27
WMD11.0
WMD8.3
W·33A
12.5
BTD
9.4
BTD
R080
W27A
11.0
BTD
8.3
BTD
NOTES,
CAUTIONS
AND
WARNINGS
As this manual takes you through the service procedures,
maintenance schedules, and troubleshooting
of
your marine
engine/generator, critical information will be highlighted by
NOTES, CAUTIONS, and WARNINGS. An explanation fol-
lows:
NOTE:
An operating procedure essential
to
note.
A
CAUTION:
Procedures,
which
if
not
strictly
observed,
can
result
in
the
damage
or
destruction
of
your
engine/generator.
A
WARNING:
Procedures,
which
if
not
properly
fol·
lowed,
can
result
in
personal
injury
or
loss
of
life.
ORDERING
PARTS/SERIAL
NUMBER
LOCATION
Whenever replacement parts are needed for engines, always
provide the engine model number and engine serial number
as they appear on the silver and black identification name-
plate located on the manifold. For generators, provide the
generator model number, engine serial number, and generator
serial number as they appear on the silver and black decal
located on the generator end.
The engine serial number can also be found stamped into the
engine block just above the injection pump.
The
generator
serial number is stamped into the generator housing on the
flat surface on the left side
of
the generator.
You
must provide us with this information so
we
may prop-
erly identify your engine/generator.
In
addition, include a
complete part description and part number for each part
needed (see the separately furnished
Parts List). Also insist
upon WESTERBEKE packaged parts because
will fit
or
generic parts are frequently not made to the same specifica-
tions as original equipment.
NOTE:
Component locations
in
this manual
are
referenced
from the front
of
the engine which
is
the pulley/drive belt
end.
Left and right sides
are
determined as follows: imagine
straddling the engine, facing
in
the same direction as the
front
of
the engine: the left side is at your
left,
the right side
is
at your
right.
Engines & Generators
3
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