Cessna 182 1978 - Page 261

MODEL
182 &
T182
SERIES
SERVICE
MANUAL
11-72.
TROUBLE
SHOOTING.
TROUBLE
PROBABLE
CAUSE
REMEDY
ENGINE FAILS
TO START.
Defective
ignition switch.
Check switch continuity.
Replace
if defective.
Spark
plugs
defective,
improperly
Clean,
regap
and test
plugs.
gapped
or fouled by
moisture or
Replace
if defective.
deposits.
Defective
ignition
harness.
If no
defects are found
by a
visual inspection,
check
with
a harness
tester.
Re-
place defective parts.
Magneto "P" lead
grounded. Check
continuity. "P" lead
should not
be grounded
in the
ON
position,
but should
be
grounded
in
OFF position.
Repair
or replace
"P"
lead.
Failure of impulse
coupling.
Impulse
coupling
pawls should
engage
at cranking
speeds.
Listen
for loud
clicks
as impulse
couplings
operate.
Remove
magnetos
and determine
cause.
Replace
defective
magneto.
Defective
magneto.
Refer
to paragraph
11-78.
Broken drive gear.
Remove magneto and
check mag-
neto
and
engine
gears.
Replace
defective parts.
Make sure
no
pieces
of damaged
parts remain
in engine
or
engine
disassembly
will
be required.
ENGINE
WILL NOT
Spark plugs
defective,
im-
Clean,
regap
and test
plugs.
IDLE
OR RUN
PROPERLY.
properly
gapped
or fouled
Replace
if
defective.
by moisture or deposits.
Defective
ignition
harness.
If no defects
are
found by
a
visual
inspection,
check
with
a harness
tester. Replace
defective
parts.
Defective
magneto.
Refer to
paragraph
11-78.
Impulse
coupling
pawls
Listen
for loud
clicks
as impulse
remain
engaged.
coupling
operates.
Remove
magneto
and
determine
cause.
Replace
defective
magneto.
Spark
plugs
loose.
Check
and
install
properly.
11-24