PS Magazine - MAY 1984
PS, The Preventative Maintenance Monthly
ISSUE 378
MAY 1984
EngiNe CoOlI±G Syt²m .³´
Dear Half-Mast,
There's
oil
in
my
diesel
engine's cooling system. It shows
u
p
in the radiator aS a rainbow±
colored slime²
I've had the cooling system
Flushed several t³mes and eVen
had the ra´iator changed² But the
oil keep
s coming backµ
Where's the oil coming from? Is
it a s³gn of trouble?
I
so, what can
be done about it?
µ¶ ·
Dear Specialist J. M± S² ,
FiRst of you deseRve a pat on the bAck ³oR noticing this con´ition an´ RepoRt-
inG it²
·
Foµ suRe, oil in the cooling system is a sign o¶ big tRouble! YuR engine's
pRobably got a c·cke´ block oR a blown hea´ gasket¸oR both!
I a c·cke´ blocK is lettiNg oil get into the cooling system, theRe's a goo´
chance coolant's getting into the oil. Tis'll show up as blobs o³ wateR on the
oil ´ipstick. Te oil/w¹teR mix makes slu´ge in the cRankcase. Slu´ge plugs lube
passages in the engine² Ba´ news ³oR beaRing lubRication!
BL¸bs ¸f waT¹r
sp¹LL TrºubL¹
Diesel ºel is oil² » blown gasket will
let this oil get into the cooling
s
¼an´
maybe coolant into a cylin´eR² Double-baRRele´ tRouble!
TeRe's a lot o³ pRessuRe in the Clin´eRs on the compRession stRoke¸an´ even
moRe on the poweR stRoke² FResh ½Uel oR unbu¾e´ ¿el will be ³oRce´ into the
cooling system² Àou shoul´ notice a loss o³ engine poweR in such cases. »n´
yoÁ shoÂl´ see bubbling in the Ra´iatoR.
Exhaust gas in the cooling system makes aci´¸an´ this eats any metal it
touchesÃ
WoRse, tho, coolant
±
qC o
e
leaking into a cylin´eR
sets youR engine up ³oR
hy´Rostatic lock² WateR
sitting on a piston is
like a Rock when the
pistOn moves up on the
compRession stRoke²
Engine ´amage¸like a
buste´ connecting Ro´Ä
NO
LiQUiD
• .±_
ON
TOP
OF
PiSTON
is a suRe bet! Àou get
@
the Åwhole stoÆ on
hy´Rostatic lock on
Pages
3-6 & ±²7
o³ FM
21³305,
Manual ³oR Te Wheele´ Vehicle DRiveR²
Çil in the cooling sÈstem is a pRoblem ³oR youR suppoRt to solve.
A
cRacke´
block means engine Replacement² ɳ it's only a matteR o³ Replacing a ba´ gasket,
they may nee´ to clean the cooling system to make suRe all the oil's out an´
nothing's plugge´.
la-J±
´
²
²
MAY
8
4µ
l
'
F
Back to Top Back to Top
