Piper PA-24 Comanche Service Manual page 434

PIPER COMANCHE SERVice MANUAL
TABLEY1IB-U. TROUBLESHOOTtNGCHAllT
(ENGINE) (cone)
Trouble
ea.u.
Remedy
Excessive oil consumption.
LIJW
ande of oil. Fill tank
with oil confonning
to
specification.
F.wn,
or failed
bearinp. Chcc:k sump for mew pam-
cles.
If found. overhaul
of enpne is indicated.
Worn piston
rinp.
InsWl
Dew riZlp-
Incorreet
insuUatioll
of IDIUll new rinp.
piston rinp.
Cold weather diffiadtia. Cold oil.
~ove
&irenic iaee a heated
hUll'" Heat oil.
lnaccurue praNre In extrmle cold weather. oil
rcadinp. pressure
readinp
lip to
approximateJy 100 Ibs. Does
Not necessarily melJl
nWtunctioninJ·
OverprimiDl·
Rota" crankshaft in direction
of normal rotation with
throttle "full open", and
mtmare in "idle-eut-off"
and ignition switch "OFF".
Weak battery.
tnsrall fuUy chattcd batter,.·.
Faulty ignition switch. Chcck JfOWldwires.
POWER PLANT
ISSUED: 8/18/72
2 66
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