Engine Fuel And Control - Distribution; Fuel System Inspection Procedure; Fuel Filter Inspection Procedure - Lycoming YO-233-B2A Maintenance Manual

YO-233-B2A Engine Maintenance Manual
TEO-540-A1A Engine Maintenance Manual
73-10 - ENGINE FUEL AND CONTROL – DISTRIBUTION

1. Fuel System Inspection Procedure

DO NOT SMOKE OR HAVE AN OPEN FIRE/FLAME OR USE ANY
DEVICES THAT CAN MAKE SPARKS DURING THIS REPLACEMENT
PROCEDURE. SMOKING, FLAMES, OR SPARKS CAN IGNITION THE
FUEL WHICH CAN CAUSE SERIOUS INJURY OR DEATH.
— Visually examine all fuel lines and fuel fittings for evidence of damage or leaks.
— Replace any fuel lines that are crimped or kinked. (Cracks can develop at the site of bends or
kinks.)
— Make sure that all fuel lines are secure and have clamps attached securely.
— Ensure the security of the clamps.
— Examine the carburetor and connections.
— Remove and clean the fuel inlet strainers. Always remove from the inlet side.
DO NOT RETURN THE ENGINE TO SERVICE UNLESS THE ENGINE IS
OEPRATING CORRECTLY AND DOES NOT HAVE ANY LEAKS.
— Look for any fuel leaks. Identify and correct the cause of any fuel leak.
— Operate the engine and look for leaks. Identify and correct the cause of any leak or
malfunction. If leaks or malfunctions were found and corrected, operate the engine again to
make sure it is operating correctly and there is no leak anywhere.
— Make sure the mixture control and throttle linkage have full travel, freedom of movement,
and that the clamps are tight.
— Lubricate the linkage as per the aircraft manufacturer's instruction.

2. Fuel Filter Inspection Procedure

A. Remove the fuel filter.
B. Examine the fuel filter for dents, damage, dirt, and contamination.
(1) If metal particles are found, identify the source and correct the cause of the problem.
(2) If the fuel filter is damaged, replace the fuel filter.
Install the clean fuel filter on the engine.
C.
© 2021 Avco Corporation. All Rights Reserved
February 2021
73-10
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