PS Magazine - AUGUST 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 249
AUGUST 1973
I
Idle, yes. Pointless, no.
±
This is to remind you aboUt why it's Real impoRtant fr you to ²dle-cooL
your engine befRe you shut 'er down.
No matteR iF it's liquid or air cooled. They all get tHe same sHut³dow´
tReatmentµ
YouR TM tells you to take tHis wee
bit oF time aFter a Run to idle 'em¶to
cool ·em slow-like. THe experts know
that iF you ¸il to idle-cool 'em¹ tHe
engine can go into a case oº shock.
When you don·t idle-cool a liquid»
cooled engine a¼er a hot Run½
tHe
sudden rise oF Heat ¾om the engi´e's
Block wil¿ tRavel thru to tHe wateR
jacket and tuRn tHe water tO steam.
That's wHen the diRty work staRts.
\
It can cracK or warp a head, or
valves, or ruin head gaskets and
carbon-up the rings. À´ a diesel en»
gine½ it can cause the Fuel injection
nozzles to plug up.
This idle-cool is real important to
the sleeve bearing liFe in youR engineÁs
turbo-chargeRs. Âdle cooling lets tHe
oil cooà dow´ the turBo. Shutting
down the engine withoUt idli´g 'er
doesn't give tHe tuRBo time to cool.
This results in Baked oil tHat's not
slick enough to lube the beaRings . .
.
,:l!;
and zaÄ, no bearings!
So
wHe´ it comes to idli´g½ Haste makes Åaste.
Take at least tHE
time
Æ
tHe TMÇs aÈk yoU to taÉe wHen yoU idle-cool yoUR e´gi´e.
29
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