Cessna 182 1973, Owner'S Manual

Page: 24 / 88

If the engine
is underprimed
(most likely in cold
weather
with a cold
engine) it will not
fire
at
all.
Additional priming will
be necessary for
the next
starting attempt.
As soon as the cylinders
begin to
fire,
open
the
throttle
slightly to keep
it
running.
If prolonged cranking
is necessary,
allow the
starter
motor
to cool
at
frequent
intervals,
since
excessive
heat may damage the armature.
TAXIING.
The
carburetor
heat
knob
should be pushed full in during
all
ground
operations unless heat is absolutely necessary for
smooth engine operation.
When
the knob
is
pulled out
to
the heat position,
air
entering the engine
is
not
filtered.
Taxiing over loose
gravel
or
cinders should
be done
at
low engine
speed to
avoid
abrasion
and stone damage to the propeller tips. Refer
to
figure 2-4
for additional taxiing instructions.
BEFORE
TAKE-OFF.
WARM-UP.
Since the engine
is
closely cowled
for efficient
in-flight
cooling,
pre-
cautions should be taken to avoid overheating
on
the ground. Full throttle
checks
on
the ground are not recommended
unless
the pilot has
good
reason
to suspect
that the engine is
not turning
up
properly.
MAGNETO CHECK.
The magneto check should be made
at
1700
RPM
as
follows.
Move
ignition switch
first
to
"R'"
position,
and
note RPM. Next move switch
back to "BOTH" to
clear
the
other set
of plugs. Then move switch to "L"
position, note RPM and
return
the switch to the "BOTH"
position.
RPM
drop should not exceed
150
RPM on
either
magneto
or
show
greater
than
50
RPM
differential between magnetos.
If
there is
a doubt concerning
operation of
the ignition system, RPM checks
at
higher engine speeds
will
usually confirm whether a
deficiency
exists.
An absence
of
RPM drop may be an indication
of faulty grounding
of
one
side
of
the ignition
system or
should be cause for suspicion that the
magneto timing is
set
in advance
of
the
setting specified.
2-10