Piper Comanche PA-24 Service Manual page 607

PIPER COMANCHE SERVICE MANUAL
Trouble
Failure of e"""e to
sun.
i
I
TABLE VUC-II. TR.OUBLESHOO'I'DIG OIAllT
(INGINE-TI1IlBOCHAllGID)
Cause
Lack of fuel.
WHet in fuel injector.
Insufficient prime.
OverprimiDa·
Lack of SIlffic:imt
fuel flo ...
Incorrect throttle
oetting.
Defecti"" sparl< plup.
Defective iplition wire.
Improper oper2tion of
magneto to breaker
points.
Internal foilure.
-
Fro.en sparl< plug
electtodes.
Shorted agniDon switch.
2
11
Remedy
Check fuel system for
lcab.
0
F
ill
fuel
tanks.
Clean dirty lilies,
screens,
or fuel valves.
Drlin Wlret from fuel
system.
Increase prime.
Open throttle IUld engage
suner.
CIeIUl fuel mainc:n
IUld screens. Check
fuel pump.
Open throttle to one·
tenth of its
nnge.
Clea.n IUld adjust or
replace spark plug
or pi"". Refer to
Tobie ((-I for sparl<
plug gop adjusanents.
Check with electric
t .. ter ond .... Iace
U1y defective wires.
Check internal aming
of mqnetos.
CI<&n IUld set points.
Check oil sump
ser«n
for metal panicles.
If found. complete
overhoul of the engine
moy be india ted.
Replote spark plugs or
dry out removed plugs.
Checlc ond replace or
repUr.
POWER PLANT
ISSUED:
8/18172