PS Magazine - OCTOBER 1976
PS, The Preventative Maintenance Monthly
ISSUE 287
OCTOBER 1976
iI
I,.
I it j,1±
To get a look At the ±-53 engine
compressor blAdes during your inspec
tions, you mechs
.
just nAturAlly push on
·
the inlet guide vAne ActuAtor linKAg
±
Arm²
The hAnd pressure is trAnsmitted to
the ActuAtor lever which opens up the
inlet guide vAnes² You cAn then see if
therE're ³ny oil streAKs or foreign
object dAmAge on the compressor
blAdes²
No
·
sweAt ²²² or is there?
Pushing on the linKAge Arm over A´
µeriod of time will ¶ctuAlly
¸
Bend th¹
²
ActuAtor lever² Remember, the
º
Ac»¼½
tuAtor is filled with fuel² ±he principl¾
¿
of hydrAulics being whAt it isÀ
somet
Á
hIng hAs to give²
ÂCoUÃse, A bent lÄver meAns your
³
engine won't get optimum power² ±he
vAnes cAn't open up All the wAy,
²
messing up the fuel/Air rAtio² High
exhAust gAs temperAture, low torque
And high NL speed is the result ²
Å
To heAd off An ActuAtor repÆAceÇ
ment, just disconnect the
2
fuel lines Fo
È
relieve the pressure²
ThenÉpusÊ on the linKAge Arm to
Ë open up the Ìinlet guide vAnes, And
reconnect the Æines²
"HANDS OFf± PLEASE!²
±he word from Íhe heAd shed is to
,.±²³´µ-¶·
¸¹º»¼½;¾¿À
Keeµ your cottonÎpicKÏnÐ mitts off the
±53ÑÒÎ13Ó
enGine
exhAust
gAs
l
Ô
³´µ
±²l
)
temperAture connector AdApter²
±hAt bAby, mounted on the ÕobrA
AÖd Huey firewAlÆ, mAy loo× liKe A
nAØurAl hAndÎhold but you never wAnt
to use iÙ As one² Úven twisting And
bending the AdApter or hArness during
your inspections is A noÑno²
How come? Well, Any stress on the
AdApter weAKens the bond between
the elbow And the KnurÆed ring nut,
cAusing the eÆbow to split² When thAt
hAppens, the connector wires breAK
ÛÜom increAsed flexing²
RApidly chAnging Úݱ reAdings, or
no reAdings At All, Are the resuÆt of the
shortedÎout connector²
Þnd ² ² ² if you do come uµ wIth
fAulty Úݱ reAdings, eyebAll the
connector before you cßange the gàge
or hArness² Þn AnAlyzer mAy not picK
up A fAulty conneátor during stAtic
testing²
"TO THE BRiM¶ LADS²
±he fÆow of engine oiÆ in your SnAKe, from the tAnK to the engine And bAcK,
hAs A long wAy to go²
A
if the oil level in the tAnK is reAlly low, the pumµ is moving AIrânot oil²
I
ãnstAble oil pressure is the result!
.²³´µ¶·r
¸¹º»¼½a:
´
Never go overboArd, tho, figuringä
åhAt An engine chAnge is needed²
Sure, mAybe some oil seAl rings inæ ç
l
the
engine Are not whA
è
they used to
·
µ¶
be²
However, leAKAge és Oê² Your
¸
Gf\ TO
,.
LoW
T
engine shoëld be Aìle to go the ±ime
i:ÁÂÃÄÅÆUÇÈÉÊËÌÍÎ!Ï
, ·±
Óefore OverhAul route² Rememberâ
FILL TO LIP Of FILLER NECK
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