Piper Comanche PA-24 Service Manual page 448

Trouble
Failure of CDlPDe to iclle
properly.
Low powu IIIId
WI ....
n
nlDIIinI
cnpne.
..
-
POWER PLANT
ISSUED: 8/18172
PIPER COMANCHE SERVICE MANUAL
TABU VUolD. TJlOUBLISHOOTING ClART
(INGlNI)
(CODe)
Caue
Remocly
hl<otrect c:orbumor idle
Adj .... throttle _p to
adjuIanCDt.
obtaiJI
correct
icIle.
Idle 1IIixtIIn:. Adjlllt mixture. Refer to
.....e lIWIufactun:r's lwId·
book for
proper
plOCCdure.
Leak in die iDduction synan.
TiP ....
aU COlUlecQoas in the
iDcbaction
system.
RepW:c
1liiy pIttS tbar are defective.
Low cyliDdcr compression. Check cyliDder compresaion.
F
wlty
ignition
systmI.
Cbcck entire iplition system.
Open primer.
Lock primer.
Improper
spark
pluS
scttiDf
Check spari< pI ... pp.
for altitude.
Dirty air fdtcr. Clean, refer to Parqraph 7·Z'.
Mixture tOO rich; indicated Check primer. RcadjllStlllCDt of
by slagisb CDfiDe carbumor by authorized
opcraaoa, red cxbaIIIt pcnolUlCl iDdicated.
flame ..,d black SIIIOkc.
Mixture tOO lcaa; iDdicated Cbeck fuelliDes for dirt or
by ovallcaliDtl or back· odler restrictions. Check
firins·
fuel supply.
Leaks iD iDduction
system.
TiPren
aU
cOllDectioDS. Re'
place defecti¥c partS.
Defective spari< plup.
Clean or repw:e spark pi ....
Improper .... de of fuel.
F ill rank with recommended
pde.
M ...... o breaker pOina aot CI .... poiDa.
wotkins pruperly. Cbeck intemal
tiInins
of
moen
eto .
Defective ipition wire. Cbeck
WIre
with electric
tester. Repw:e defective
WIre.
Defective spark pI ... Replace connectors on spark
term.ina1 connector'S. plul wire.
Restriction in exhau.st Check for loose muffler baffles.
system.
Improper iplition
amins.
C~eck
magnetos for triming ilftd
synchronization.
2 822