Beechcraft TRAVEL AIR 95 Shop Manual page 100

TROUBLE PROBABLE CAUSE
CORRECTION
3. Low power and uneven
a. Mixture
too
rich: indicated by
a. Check primer
shut-off
valve
running. sluggish engine operation, red for leakage. Readjustment of
exhaust flame at night. In carburetor or fuel injector
extreme
cases
indicated by may be required.
black smoke from exhaust.
b. Mixture
too
lean; indicated by b. Check
fuel
lines
for dirt or
overheating
or back-firing.
other restrictions. Check fuel
supply. Readjust carburetor
or fuel injector if necessary.
c, Leaks in induction
system. c. Tighten all connections. Replace
defective
parts.
d.
Defective spark plugs.
d. Clean or replace
spark plugs.
e. Improper fuel. e. Use only fuel of
the
recom-
mended
octane
grade.
f. Magneto breaker points not
f. Clean points.
Check
timing
working
properly.
of magnetos,
g. Defective ignition
wire.
g.
Check
wire with electric
tester,
h. Improper ignition
timing,
h. Check magnetos for
timing
and synchronization,
i.
Defective spark
plug
ter-
i. Replace connectors on spark
minal connectors. plug wire.
j.
Incorrect valve
clearance. j. Adjust valve clearance.
4.
Failure of
engine
to
a.
Throttle lever
out
of a.
Adjust throttle
lever.
develop
full power.
adjustment.
b. Leak in
the
induction
system.
b. Tighten
all connections
and
replace defective parts.
c. Restrietion in carburetor
c.
Inspect air scoop and remove
air
scoop. restrictions.
d. Improper
fuel.
d. Use only fuel of
the
recom-
mended octane grade.
e.
Faulty ignition.
e.
Tighten all connections.
Check
system
with
tester. Check
ignition
timing.
5. Rough engine.
a.
Cracked
engine mount.
a.
Replace
or
repair mount.
b. Unbalanced propeller. b.
Check propeller
for proper
balance.
c. Defective engine mount c.
Install
new engine mount
bushings,
bushings.
6. Low
oil pressure. a.
Insufficient
oil.
a.
Check oil supply.
b.
Air
lock
or
dirt
in
relief b.
Remove
and clean
oil pres-
valve. sure relief valve.
c.
Leak
in suction line or c. Check gasket
between
accessory
pressure
line. housing
and crankcase.
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