
Make sure intake system (sea
waler
system) is in
proper
order. ChecK that the hull inlet, sea
cock
and strainer are unobstructed, Sea
cocks
and strainers should
be
at
least
one
size greater than the
inlet thread
of
the
sea
waler
pump, The strainer should
be
01
the
type
thai
may
be
withdrawn
lor
cleaning
while
the
vessel is at sea and should
be
mounted below
the
water line
to
ensure self-priming, Inspect the
sea water lines
to
ensure there are
no
collapsed sections,
which
would
restrict water flow, Make sure there
are
no
air leaks at
any
01
the
connections,
Coolir'Q
System
The generator's engine is fresh water cooled
by
an en-
gine-mounted heat exchanger. Sea
waler
is used as
the
heat exchange's
cooling
medium, Sea water is
pumped
into
the
exchanger
by
a sea
water
pump
and
is then injected
into
the
exhaust discharge, carrying
with it
the
heat removed
from
the
engine's fresh water
cooiing
system.
Sea
water
should
be
supplied
to
the
sea water
pump
through
a flush-type hull fitting using a wire-reinforced
hose between
the
thru-hull fitting and
the
sea water
pump, This sea water should
be
directed through a
visual-type sea water strainer
and
then delivered
to
the
pump, Hoses routed
from
the
thru-hull fitting
to
the
strainer and
to
the
sea
water
pump
should
be
wire-rein-
forced
to
prevent
the
hose
from
collapsing
during
the
generator's operation (suction
from
the
pump
may
col-
lapse a non-reinforced hose), Sea water strainers
should
be
mounted
at
or
below
the
water line
to
make
sure
the sea water line remains primed,
BUT
TENSION
3/8-112
INCH
OEFlHTIIHi
AT
lOKGEST
spa"
CAUTION
Do
not
use a
scoop-type
thru-hull fitting as a means of supplying sea water
to
the generator.
Water pressure against this
type
lilting, while the vessel is under way, can push sea water past
the
sea water
pump's
impeller
into
the generator's exhaust system, filling it and
the
engine
as
well. Flush-type, clear, thru-hull fittings are recommended and should
be
iocated
on
the hull
so
as
to
be below the waterline during all angles
of
boat
operation,
The use of
common-type
street elbows is not recommended
for
plumbing
the
sea water
circuit
These
generally have
very
restrictive inside diameters, Machined fittings are preferred,
Electrical
System
The electrical system
shOUld
be
checked
to
ensure that all wiring harnesses are properly tied
down
with
clamps
or
plastic ties and that ali wiring harnesses are spaced
at
inleNals
close enough
to
prevent chafing
from vibration,
Check
to
ensure that all engine harness connections are
tight
and that
they
are
made
to
the
appropriate terminals,
Westerbeke
Generators
32
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