Installation manual
COOLING
SYSTEM
THERMOSTAT
A
thermostat,
located near
the
manifold
at
the
front of
the
engine,
controls
the coolant
temperature
as
the
coolant
continuously
flows
through
the
closed
cooling
circuit.
When
the
engine
is
first
started, the closed
thermostat
prevents
coolant
from
flowing
(some coolant
is
by-passed
through
a
hole
in
the
thermostat
to
prevent
the
exhaust
manifold
from
overheating).
As
the engine
warms
up,
the
thermostat
gradually
opens.
The thermostat
is
accessible
and
can
be
checked,
cleaned,
or replaced
easily.
Carry
a
spare
thermostat
and
gasket
Replacing
the
Thermostat
Remove
the
cap screws and disassemble the thermostat
flousing
as
shown.
When installing the
new
thermostat
and
gasket,
apply
a thin coat of sealant
on
both
sides
of the
gasket
before
pressing it into place.
D(f
not over-tighten
the
cap
screws.
Run
the engine
and
check for
normal
temperatures
and that
there
are
no
leaks
at
the thermostat
housing.
BLEED
PETCDCK
FOR
PUSHING
AIR
FROM
THE
COOLING
SYSTEM
RAW
WATER
INTAKE
STRAINER
NOTE:
Always install
the
strainer at or below the waterline
so
the
strainer will always be self-priming.
A
clean
raw
water intake strainer
is
a
vital
component of the
engine's cooling
system,
Include a visual inspection of
this
strainer
when
making
your
periodic engine
check.
The
water
in
the
glass
should be
clear.
Perform
the
following
maintenance after every
100
hours
of
operation:
1.
Close the raw water seacock.
2.
Remove
and
clean the strainer
filter.
3.
Clean
the glass.
4.
Replace
the
washer
if
necessary.
5.
Reassemble
and
install
the
strainer.
6.
Open the seacock.
7.
Run
the engine
and
check for
leaks.
NOTE:
Also follow the
above
procedure after having
run
hard
aground.
If
the
engine temperature gauge ever
shows
a higher
than
normal
reading,
the cause
may
be
that
silt,
leaves
or
grass
may
have been caught
up
in
the
strainer,
slowing
the
flow
of
ra,:"
water
through
the cooling
system.
~
WASHER~
GASKET
USE
HI-TACK
SEALANT
STRAINER
FI~tER
r
INSPECT
AND
CLEAN
EVERY
100
HOURS
'rHERMOSTAT
ASSEMBLY
SENDOR
1.kI:::,
-=-
=i--blJ
f "
k
~--~
TYPICAL
RAW
WATER
StRAINER
(OWNER
INSTALLED)
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..
~.,.;
....
::
SEACOCK
Engines & Generators
16