INTRODUCTION
SERIAL
NUMBER
LOCATION
NOTES,
CAUTIONS
AND
WARNINGS
As
this
manual
takes
you
through
the
disassembly, inspection
and
assembly
procedure
of your engine/generator, critical
information
will
be
highlighted
by
NO'IES, CAUTIONS,
and
WARNINGS.
An
explanation follows:
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
followed,
can
result
in
personal
injury
or
loss
of
life.
ORDERING
PARTS
Whe~ever
replacement parts are needed, always provide the
generator
model
number,
engine serial number,
and
generator
serial
number
as
they
appear on
the
silver and black
name-plate
located
on
the
generator end.
You
must provide
us
with
this
information
so
we
may properly 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 specifications
as
original
equipment.
2
RAW
WATER
COOLING
CIRCUIT
Siphon-Break
For installations where the water injected exhaust
elbow
is
close to or will be below the vessels waterline,
provisions
must be made to install a siphon-break
in
the
raw
water
supply hose
to
the water injected exhaust
elbow.
The
siphon-
break provides an air vent
in
the
raw
water cooling
system
to
prevent taw water from filling the exhaust
system
and
the
engine's cylinders when the engine is shutdown.
If
you have
any
doubt about the position of the
water-
injected exhaust elbow relative to the vessels
waterline
under
the
vessels various operating conditions, install a
siphon-
break. This precaution is necessary to protect
your
engine.
The siphon-break must
be
installed
in
the highest
point
of a
hose
.that
is looped a minimum
of
20
ioches
(51
em)
above
the
vessels waterline. This siphon-break must always
be
above the waterline during all angles of
vessel
operation
to
prevent siphoning. .
NOTE:
A
siphon-break
requires
periodic
inspection
and
cleaning
to
ensure
proper
operation.
Failure..J.o
properly
·
maintain
a
siphon-break
can
result
in
catastrophic
engine
dmnage.
Consult
the
siphon-break
11U11J,Ufacturerf6r
proper
maintenance.
SIPHON-BREAK
WITH
STAINLESS
LOOP
FOR
1"
HOSE
PART
N0.044010
ENGINE
OVERHAUL
The following sections contain detailed information
relating
to
the
proper operation characteristics of
the
major
components
and
systems of
the
engine.
Included
are
disassembly, inspection
and
reassembly instructions
for
the
guidance of suitable equipped
and
staffed
marine
engine
service
and
rebuilding facilities. The necessary
procedures
should
be
taken only
by
such
facilities.
Additional detailed information
and
specifications
are
pro-
vided
in
other sections of
this
manual, covering
the
generator,
alternator, starter
motor,
engine
adjustments,
coolirtg
pumps,
etc. ·
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