PS Magazine - JUNE 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 247
JUNE 1973
-
\X
'
har To Do
±
Make a wet test of each cylin-
der. Squirt some oIL on the cyLIn-
der wall just before testiNg that
cylinder. Test all cyLInders± ²f
the gage PS² goes to normal
³your rIngs are bad. Stop your
tune´up job and notify your DSU±
Fµrst.
.¶ Look
all
aRound
the
base of the cylInder head for
r
iE±²
³
=!´µ;¶·¸¹
:
possIblE Leaks± ²· you ·Ind a
Leak, tHe
¸
head gasket wiLL have
to be repLaced and the head
bolts torqued right. But before
you replace the gasket, check
the Maintenance Allocation
Cha¹ (MAC) In the veHicle's
²20 I"!³´
TM to see if it's yoºr job» ¼f not½
teLl your DSU±
OveRHeAd vAlveµin¶HeAd en·
gines:
¼· the wet test didn't
Improve your gage readings,
then go ovEr the valve cLear¾
ances¿ A·ter adjustment, test
agaIn± Still no improvement,
You Àay have burnt valvesÁ Âe-
place 'em If your MAC says so±
FlAtHeAd EnginEs:
¼f tHe wEt
test didn't improve your gage
readings and tHe head gaskEt
is
¸K,
notify your DSU.
COnstant Low PS² beÃween cylin-
Äers next tO eacH otHer Is the
tell´talE siGnÁ ÅEplace the Gas-
Ket if tHe MAÆ says It's Çour joÈÁ
1.
Never make cylinder checks on a diesel or multifel engine. It's
a
¹SU
job. Your gage wo±'t dig it²
º»
While your spArk plugs are oUt, check and clean 'em on youR spark
plug tesTer-cleaner. Could be a bad
³
plug w´ pARt oF tHe engine's bum
perµrmance in the ¶rst place.
9
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