THERMOSTAT
ASSEMBLY
I
FUEL
PUMP
COOLANT
RECOVERY
TANK
Flush out
the
recovery
tank
and
the
hose
that connects
to
the
pressure
cap
assembly.
Use
a pipe cleaner or compressed air
to
clear the passage where the hose connects
to
the casting.
Also
clear the
by-pass
hose
fittings. Replace the plastic
tank
and
hose if it
fails
to
pass inspection.
PRESSURE
CAP
Check the manifold pressure
cap.
Open
the
valve
by
pulling
it and
make
sure
it closes
when
released. Make certain
the
upper and lower seals
are
in
good condition.
If
any
doubt,
replace the
cap.
THERMOSTAT
1.
Inspect
the
thermostat housing
and
housing gasket.
Apply
some sealant
to
the gasket
when
reassembling.
2.
Install a
new
thermostat and gasket (the old thermostat
can
become a spare). When installing the new thermostat
and gasket,
apply
a thin coat of sealant
to
both sides of
the
gasket.
3.
A thermostat
can
be checked for proper operation
by
placing it
in
a
pan
of cold water
and
then raising
the
tem-
perature of
the
water
to
a boil. The thermostat should
open
noticeably
(with travel
on
the order
of
114
-
112
in
0.0098 - 0.0197niin)
and
be
fully
opened when the water
is
boiling.
THERMOSTAT
ASSEMBLY
CLEAN
OUT
THE
COOLANT
RECOVERY
TANK
AND
CONNECTING
HOSE
THERMOSTAT
FUEL
PUMP
This solid state lift
pump
requires
no
maintenance.
To
test:
sim-
ulate a start, the
pump
should produce a clicking
sound
indicat-
ing
the piston in the
pump
is
working.
If
no
clicking
is
heard,
check that
12
volts
are
present
at
the pump connection
and
the
pump
is
grounded.
If
it
fails
to
work,
replace the
pump.
GASOENSER
FUEL
LIFT
PUMP
GASDENSER
The gasdenser cools
the
fuel
to
prevent vapor lock, there
is
no
mai.ntenance
required except making certain the
fuel
fittings
are
tight and secure.
Engines & Generators
38
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