PS Magazine - OCTOBER 1979
PS, The Preventative Maintenance Monthly
ISSUE 323
OCTOBER 1979
I
.
I
I
There's nothing ·that'll lIven up a
dull winter day like a cloud Of steam
suddenly pOuring Out± of yOur engine.
HEY D'yA.
²r a temperature gage that goes up,
³
·
±\²1³,´vµ¶·
.1
REMemB±r THAt
²aDi³´Oµ hoS¶ .
ThOUG¸t a
B·
u¹
¸¹PLºCl»¼G ½
c·Up¾¿ À' ÁÂNÃÄs
up,
_
up-t´ll it Pegs outµ
-
±·²: ³,
ShOcking,
you
betµ
But
not
surprising-if you failed to pull a
gOOd check of your cOoling system
beFre cold weather set in.
±
bÅÆK
-
'±²"³
WÇÈ ÉÊË
¶
That's the key¸¹Eº»rEµ ¼t's a lot easier on a nice, sunny autumn day½
especially wHen there's time to ge¾ whatev¿r parts you need.
¼t's no Àn at aLl when a Árigid wind's whisÂling around your ears, when
snOw's sifting dOwn yOur necK, when your engine compartment'Ã all wet Än'
glOppy. And when the radiatOr cap
Å
or hose you ÆnÇÈd :is in sÉort supplyÊ
because
a lOt Of OtËer people made the same mistakÌ you did
²
³
´
Ì ÍÎFOÏÐ
Ñ
gÒÓ
ºNdeR/
ÔÕÖ×Ø ÙÚÛ ÜÝÞß, àáf
µ
uâ
THAt hOoD
n
¶
•
•
7
,
´
¸
-
Pr»ss¼r» C½p
¾
s im¿orÀ½nÀÁ
Do yOu think that radiator cap is just to keep junk frOMfallingÍntO the filler
Opening? ¼f so, think agaiNÊthink of a boiled pOtato.
¼f yOu bOil a pOtato on tOp of a high mountain, yoU Îay wind up with a halfÏ
cOOked spudµ This's because water bOiÐs at a lOwer temperaturÑÒ aÓ high
Ô
altitudeÊmuch lOwer than the
21ã°ä
at sea level. Õhere's not eÖough
pressureÊatmospheric pressureÊto ×et tØe water get reaÙ
Ú
hot bÑfore it boils
The water can't get any hOtterÛ under
µ
¶ ¸
¹
´
µ
.
that lOwer pressureÊnÜ Ýatter how
º»=e
muchÞ heat yOu put to it.
ßuà
Âf
yOu put a tight áâd On your
cOOking pOt, pressure will build upµ
Tãisä
å
ll raise the bOiling pOint of theæ
waterç
¼t'll
get
hotter
before
itè
bOils-and
it'll
cOok
that
pOtatOé
faster and betterµ
åænçè
BÃLÄÅVÆ Ä¹Ç
¹º»
wéêëìí îïðñ
òóôõö÷ø ùúû üýþÿĀ
āĂă ÙĄoąĆ ćĈĉd
Ċ
ċČ
čĎďàĐ đÕkĒ
ēĔĕĖė!
Steam makes pOckets in yOur co9ling systemê YOUr liquid cOolant can't carR
away the heat in thesë pocketsê Your eìgiíe Wîter pump can't pumï steam. So
it just sits ðhere, like the air that keeps you wñrm in your òóshÏnet thermal
underwearµ ôhese hot spots get hotter õn' hOtter-they can ruin your engine!
öOul÷n't a bigger radiatOr hold dOwn the cOolant temperature? øightÊtOo
much. Your engine is designed tO rùn best in a certain temperature rangeµ ¼f
engine temperature's tOO low, you Get all kinds of prObÐemsµ And your engine
ú
ûü
already has a real tough time hOldiýg its best temperature in cOld weathþr.
Your engine coolant won't boIL
,
even
if
the
tempERatuRE
GOes
OveR
2È2
°
F
¼½¾
the boILIng pOInt For waTeR at
sea Level.
±IgHT
²
The
noRmaL
opeRATinG
TemperaTuRe
oF
youR
enGinE³s
proBably no wHERe nEaR
2É2°FÊ
´uT
tHE Rad
i
aTor cap
µ
S a lIFesave
¶
when IT
HelpS prevenT boIlInG duRing op·Ra-
tion in ¸ot weatheR
¹
aT hiGh alTItudES
anD undºr »eaV
Load
¼
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