Trouble-Shooting
1. General
The table below lists the defects you could have with the engine fuel and control system. It only gives you the data for the air intake and filter assembly. For more data on trouble-shooting the engine fuel and control system refer to the Lycoming Maintenance Manual. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
Trouble Possible Cause Repair
Loss of engine power. Blocked air intake. Dirty/Damaged air filter. Examine the air intake. Remove any obstructions. Replace the air filter.
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AMM
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Engine Fuel and Control
AMM
Maintenance Practices
1. General
This section tells you how to remove/Install the air filter and how to remove/install the fuel injector. For more data on the engine fuel and control system refer to the Lycoming Maintenance Manual.
2. Remove/Install the Engine Air Filter
A. Remove the Engine Air Filter.
Detail Steps/Work Items Key Items/References
WARNING: DO NOT STAND WITHIN THE DANGER AREA OF THE PROPELLER IF THE ENGINE STARTS, THE PROPELLER CAN CAUSE DEATH OR INJURY TO PERSONS. WARNING: YOU MUST MAKE SURE THAT THE ENGINE IS SAFE BEFORE YOU DO WORK ON THE ENGINE. IF THE PROPELLER TURNS IT CAN CAUSE INJURY TO PERSONS.
(1) Make sure that the engine is safe: S Set the ignition switch to OFF. S Set the throttle control to IDLE. S Set the mixture control lever to LEAN CUT-OFF.
(2) Remove the engine cowlings. Refer to Section 71-10.
(3) Disconnect the airplane battery. Refer to Section 24-31.
(4) Disconnect the spark plug cables from the spark plugs.
(5) Loosen the worm drive clamp that holds the air filter to air filter housing.
(6) Pull the air filter forward and clear of the air filter housing.
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AIRCRAFT AMM
Usual Air Inlet Fuel Injector
Alternate Air Inlets (6)
ALTERNATE AIR
VALVE ASSEMBLY
Worm-Drive
Air Filter Clamp
Air Filter Housing
(Cut Away)
Flexible Seal
Figure 2: Air Filter Installation
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