Failure Of Engine To Develop Full Power; Rough Engine - Textron Lycoming IO-540 Series Operator's Manual

TEXTRON LYCOMING OPERATOR'S MANUAL
SECTION 6
0-540 & 10-540 SERIES
TROUBLE
Low Power and
Uneven Running
(Cont.)
Failure of Engine
to Develop Full
Power
Rough Engine
PROBABLE CAUSE
Defective spark plug
terminal connectors
Plugged fuel injector
nozzle
Leak in induction
system
Defective tachometer
Plugged fuel injector
nozzle
Throttle lever out of
adjustment
Improper fuel flow
Restriction in air
scoop
Improper fuel
Faulty ignition
Cracked engine
mount
Defective mounting
bushings
Uneven compression
REMEDY
Replace connectors on
spark plug wire.
Clean or replace nozzle.
Tighten all connections
and replace defective
parts.
Replace tachometer.
Clean or replace nozzle.
Adjust throttle lever.
Check strainer, gage and
flow at the fuel line.
Examine air scoop and
remove restrictions.
Drain and refill tank with
recommended fuel.
Tighten all connections.
Check system with tester.
Check ignition timing.
Replace or repair
mounting.
Install new mounting
bushings.
Check compression.
6-4