Piper PA-24 Comanche Service Manual page 479

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PtpER COMANCHE SERVice MANUAL
TABLE VlIC-II.TROUBLISHOOTING
CHART (eene.)
(ENGINE·TUIUIOCJIAAGED)
Trouble
Caute
Remedy
Low
pow~r
and
unrv~n
Mafneto breaker
Check dltema1
timm,
runnitll cflJinc. (cent.) poinu nat woriting
of m..,neto.
properly.
Defec:tive ilftition wirc.
Cbeck win: with eler:aic
tester. Replacc de-
fective wire.
De1'ec:tive spark plul
Replace connectors on
terminal connectors.
spark plUl wire.
Improper iJnition Check magnetos for
amm,.
timiq
and synchro-
nization.
Flow meter reads hiJh. Cloged nozzle.
Remove and dean.
puqraph 7C-46.
Defective fuel injector.
Repair or replace fuel
injector.
Fatlure of engine to Throttle lever out of Adjust throttle lever.
develop full power.
adjustment.
Leak in induction Tipten
all
connections.
system. and replace defective
pam.
.\\ixture tOO lean Injector must be re-
or tOO rich. calibrated.
Restriction in Examine air inlet and
induction air. tcmove restriction.
Improper fuel. Fill tank with reeem-
mended fuel.
PropellCt' Jovcmor put Adjust governor.
out of adjustment.
Propeller out of Adjust propeller low
ad;ustm~nt.
pitch stop.
R~tnct1ons
in inlet
Examine air scoop iU1d
ilr scoop and filter. filter and remove
restrictions.
Faulry ignition.
Tilhtcn
all
connections.
Check ignition
~·stem.
Cheek ipition timing.
Turbochaller control RiJ Turbochargers. Refer
out of adjustment.
to pangnph 7C·ZS.
POWER PLANT
ISSUED: 8118/72
213