Piper Comanche PA-24 Service Manual page 615

PIPER COMANCHE SERVICE MANUAL
Trollblc
Airplane perfonnancc
is reduced from
normal.
Fuel consumption is
higher than oormal.
TABLE vIIc·n. TROUBLESHOOTING CHART
(con .. )
(ENClNE·TUJUIOCHAJtGED)
C -
Mal" be due to hot
weather.
Tired
.".;nc.
or out
of mnc.
Airplane may b •• e
additional drq due
to radio anmma.
saging
gear
or
flaps. Out of
riDs.
etc.
Mixture set
tOO
rich.
Leak
in
fuel system.
Prolonged high power
at
full ricb
mixture
Hot weather.
2 19
Remedy
Speed for the Turbo
Comanche will
be
reduced 2 to 4 mpb
for 10· F
rise
in
remperature .bo.e
staadard day. This
is beause Turbo-
chugcn. like
turbines. arc heat
sensitive
IS
to
per~
formaacc.
Repair Cllline as ....
quired.
Inspect airfr.me and
repair
IS
necessary .
O_lop proper leaning
rechnique.
I.oca .. and repair leak.
Reduce power and lean
for fuel economy
Hot wcather wtll natu·
r.ally increa.se fuel
consumption 2
[0
4-
GPH depending on
power. leaning and
temperature of the
a.ir.
This
IS
due to less
dense air for the same
MAP.
Also
it has been
found from
tests
that
slightly richer mixture
should be used for ex·
D'cmciy warm weather
to maintain
I.
lower
hc:ld [cmpcnrurc.
This will insure good
engme life.
POWER PLANT
ISSUED: 8/18172