DATE:
MODEL:
SUBJECT:
SERVICE BULLETIN V.19
May
5,
1980
ALL
BULLETIN
NUMBER:
108
Circuitry
Change
for
Marine
Propulsion
Engines
With
the
W58
we
introduce a
new
electrical
circuit
which
will eventually
be
used
on
most
models.
Some
features of the
new
circuit
are
as
follows:
1. A voltmeter
is
substituted for
an
ammeter.
Naturally
an
ammeter
can
still
be
installed
separately.
2.
All
wires
between
the engine
and
the instrument
panel
need
not
be
heavier than
14
AWG.
3.
The
panel contains controls for preheating
and
starting
the engine, eliminating the necessity for a separate
control panel.
Of
course the controls
can
be
installed
remotely
from
the
panel
by
the builder
if
desired.
4.
The
circuit
allows
commonization
of the instrument
panel
across the broadest possible
range
of engine models,
simplifying the distribution of spare
parts.
5.
The
circuit
allows
commonization
of engine wiring harnesses
across the broadest
range
of engine models, simplifying
the distribution of spare
parts.
The
same
connectors
and
color coding of the connector poles are
used
on
both
new
and
old harnesses
and
cables. Functional color codesare not necessarily the
same
in
new
and
old
circuits.
The
new
panel
will not operate
wit~
an
older engine,
and
new
engines will not operate
w~th
an
older panel.
Because
the connectors are the
same,
a physical
mating
of old
and
new
components
is
possible, but neither the
panel
nor the engine will operate
and
no
harm
can
be
done
by
accidental mismatching.
PIN:
24720
Please see
diagram
on
overleaf.
J. H. WESTERBEKE CORP.
AVON
INOUSTRIAL
PARI(,
AVON,
MASS.
OZ3ZZ·
(8f7/
5B8-7700
CABLE:
WESTCORP,
AVON·
TELEX:
'2-4444
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