PS Magazine - OCTOBER 1979
PS, The Preventative Maintenance Monthly
ISSUE 323
OCTOBER 1979
on
The key's the preSSure Rating-15
P±I foR th²s one. M²GhtY ²mpoRtant³
that p´essURe rat²ng µs spec²al for
youR eng²ne!
Press the pressure valVe to make
sure it moVes free 'N± easy. Check to
see that The VAlVe seats clean and
²rue AgAinst the shoulder down in
the radiator filler neck.
LOok for diRt, slime³ oR damage
thAt±ll keep the Vacuum ValVe from
doiNg its job´
¶ad·ator
Check your µAdiatoR cap real
cap testeR
close-No deNts¶ crAckS¶ Nicks¶ or A
·Ot sure about yOur RadiatOr
bum gasket that¸ll Allow leakiNg. cAp? Check it out with A tester¹
MAke suRe the cap fits sNug ºN the like it
»
says in ¼M
750-254
(MAR
radiAtor-oR surge tAnk-filler neck½
72),
COo¾in
g
¿ystems: ÀacticAl
Check the VAlVes¶ tooÁthere±Re
2
Âehicles¶ para
2±9.
¼he testeR
Of ±emà ¼he pRessure ValVe holds cOmes with ·¿·
4910²01³018²
pressureÄ in Your cooling system-up
43 73´
Åou get AdApters for the
to the poun<s RAting Ærinted on the tester with ·¿·
µ910²01-018¶
cap-but then Opens so pressuRe
4374
aNd ·¿·
4910-01-018²
won±t build too higH. ¼he Vacuum
09·6¸
VÇlVe opens when youR eNgine cools
Bum rAdiator cAp? Get A new
dowN-aFteR
opeRation-so
outside
one. ÈeÉembeÊrËthe Right one!
22
How's YOur RadiatO±?
While yÌu¸Íe got tÎe cÏÆ ÐÑѶ ÒÓK DÐÔÕ IÕtÐ ÖÐUR ×ÏDIÏtoR ÑIlÒeR necK.
EnÐØ
G
Î coolÏntÙ ÚÛ sÜoUld Ýe Ït leÏst oÍeR the tÐÆ ÐÑ tÎe cÐ×ÞßÏÒÒ ÐÑ tÎÐse Òittle
àoÒes thÏt¸Re tÎe toÆs ÐÑ táÝes ×áânIng DÐÔn tãäÐUåÎ tÎe cÐReæ
çouR coolant shÐUlD
b
ÏlmÐst èeÏRéItêÒl Ýe cÐÒÐReD Ýy tÎe ÏntIÑReeze. ÚÑ ÖouR
cooëlAnt¸ s mudDìíî ÒÐoKIng oR hÏs
ÝIts oÑ JUï In It¶ ÖÐuR cooÒIng sÖsteð ñÏÖ
neeD dRÏInINg Ïnd ÑlushIng-mÏÖÝe eVen cÒeÏnInåò óeÆÐRt it.
Úf you seô a RaiNÝow of õiÒ slIme Ðö toÆ oÑ the cooÒÏnt¶ Öou¸Íe ÆRoÝÏÝly got Ï
÷leak inside ÖouR engine. ExÎÏUst gÏs oR ÐIl Is åettIng Into ÖouR cooling system.
Pull youR cRAøKcase Dipstiùk Ïnd check fÐR wÏteR in ÖouR enåúne oil-Òittle åloÝs
on the dipsticK. Eitheû üÏy; RepÐRt it.
Cooling System ProbLems You Can Spot¹And Fix
ý×
Report
HOSE CLA¸¹
HOse
º²l oR
WroNg»or bum ¼½½
LoOSE,
¾
connEct²oN
fueL ²N
¹reSS¿re cap
mµSSÀG
±
eaÁ
bOKÂNÃ
"
leaK
cooLa
/
t
±EAm
leaK
leak
¾
ÄÅÆÇ
BeLt
cracKEd,
raÈEd,
Loose,
m²sSÉNG
BOlt
Leak
ÊoolanË ²n
eng²ne o²L ½½½
showS On
d²pSt²ck as
ÌLobS of
water
Look oVer youR RadiAtoR þoR leaks-toÆ tAnK¶ fRont Ïnd ÝAcK of coRe¶ ÝÐttoÿ
tank. Āeāks may nĂt shÐw uÆ wet when yoUă enginĄ¸s cold. Āooą ĆR RUst oR oddć
cOlORed driÝbles wheRe coolÏnt has leAked Ïnd then dRIed UÆ. ¼hen lÏteR¶ when
you¸Ve got youR engiNe Running Ït oÆeRAting temÆeRÏtuRe Ïnd ÆRessURe¶ cheùK
Ĉhese Ælaces AgAin foR wet leakÏge. ĉse a ÑlÏshÒight ÑĊR Ýoth ÎÐt Ïnd cÐld
insÆċctionsČ
¼hÏt radiatoR cÏp testeR cÏn also
b
Used to cÎecK ÖoUR RÏdiÏtoR Ćč ÒeaKĎ.
23
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