Mooney M20B - Page 26

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Table
2
ENGINE
TROUBLESHO~TING
TRO’JBLE
CA’JSE
REMEDY
Check
fuel
systems
for
leaks,
Failure
of
engine
Lack
of
Fuel
Fill
fuel tank.
to start.
Clean
dirty
lines,
strainers,
or
fuel
cocks.
Underpriming
Prime
wi;n
2
or
3
strokes of
throttle.
Overpriming Open
throttle
and unload
engine
by
turning
in
counterclockwise
directioa
Incorrect
throttle
setting.
Open
throttle
to
one
tenth
of
its
range.
Defective
Spark
Plugs.
Clean and
adjust
or
replace.
Defective
ignition
wire.
Check
with
electric
tester
and.~eplace
any
defective wires.
Defective
Battery.’
Replace
with
charged
battery.
.~proper
operation
of Check
internal
magneto
breaker
breaker
points.
I
point timingof
magneto.
Water
in
Carburetor.
DIlin
Carburetor
a?d
Fuel
Line.
~I
Check
oil
sump
strainer
for
metal
InternalFailure.
particles.
If
found, complete
over-
haul of
engine
may
be
indicated
Failure of
engine
Incorrect
carburetor
Adjust
thrott’e
stop
to
obtain
to
idle
properly.
idle
adjustment.
correct
idle.
Idle mixture.
Adjust
Mixture
refer
to
adjust-
ments
of
this
section.
Leak in
the
induction
Tighten
all
connections
in
the
induc-
system
tion
system
Replace
any
parts
that
are
defective
Low
cylinder
compression I
Check
condition of
piston rings
and
valve
seats.
Fault~
ignition
system.
Check
entire
ignition
system.
Mixture
too
rich;
indicated
by
sluggish
engine
opera-
Low
power
and
i
tion,
red
exhaust
flame
at
Rfadjustment
of
carburetor
by
uneven
running.
I
night.
Extreme
cases
in-
authorized
personnel
is
indicated.
i
dicated
by
black smoke
i
1
from
exhaust.
~e
OLDWILLWAYNE