PS Magazine - DECEMBER 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 241
DECEMBER 1972
Healthy dogs have cold noses .
.. but
C±at's not so for water-cooled engines.
An
engine
±as
to
work
somew±ere
around the
160°²³80° range or
it gets
mechanical pneumonia´and spits, sputµ
ters, coughs and hacks its health away.
It
develops
chills
in some places and
fevers in others. It snuffs up more fuel
than it burns, and the ¶r·nkcase oil gets
diluted wit¸ fuel. Water condenses in t±e
crankcase and doesn't get vapored off
as promptly as it shouLd¹ It doesnºt get
lubed right inside. All in all, it's in pretty
sad s±a
j
.
To make sure your engine gets up to
t¸e
right
operating
temperature»and
stays theRe¼the engineer tyPes came up
with the ½thermostat. Itºs a valve device
t±at Permits flow of fluid at certain tem¾
Peratures and closes off the flow at ot±er
temperatures.
While
t±is goes on, your
Personnel
heater is getting warmed up, Coo¹ So if
your
Personnel
heater
won't cheer
uP,
you Know your engineºs not getting the
warmth aNd affection it needs, eit¸er¿
That's t±e tipÀoff for you to call in t±e
Doctor of Machinery¼your unit mech,
t±at is. Make an entry on your 240Á that
your engiNe may be running too cold.
10
\±²'
±²³´µ¶·¸¹º»¼½\¾¿ÀÁlÂÃÄ"
HERE'S WHAT GOeS ON
.
DURING ENGiNE WARM-UP
Å
WATER DOES NOT FLOw
tHRU RADIATOr AND iS
HEATED
BY
ENGiNE
iT±SGoT tO
WORK RIGHt
THERMOSTAT'S BEAT
HERE²S WHAT HAPpENs
WHEN THE THERMOSTAT
OPENS
5²ton tractor truck may be ¸eading for headlig¸t trouBle¼a s¸ort
circuit Âhere t¸e ÂiriNg ¸arness ruBs against the BoÃt oN t¸e steeriNg columN BracKet¹
Äut you can head it off Âith the fix in TÄ 750Å98³²3 (Jul 72)Æ
11
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