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Engine Overhaul Manual
Jabiru Aircraft
Pty Ltd
Jabiru 2200 & 3300 Aircraft Engines
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Dated : 28/10/2014
Issued By: AS
Page: 94 of 201
L:\files\Manuals_For_Products\Engine_Manuals\Overhaul_Manual\JEM0001-7_Overhaul_Manual_DRAFT_(29_10_14).docx
Figure 109
– Carburettor Updates
5.15.1.2 Cleaning
On initial disassembly, check for contamination like that shown in Figure 109 (left). Contamination like
this will be an early indicator for increased wear in the engine and will warn the overhauler to check
thoroughly for wear on parts like cylinders.
The carburettor exterior can be cleaned using kerosene, then washed with water and air dried.
The carburettor interior can be cleaned using a carburettor cleaner aerosol
– with the exception of the
diaphragm. The diaphragm can be carefully washed using warm soapy water.
Blow out all passageways using compressed air.
5.15.1.3 Inspection and repair
Figure 110
– Carburettor Schematic
Choke jet fitted at base of bowl
Air nozzle
Tang for
adjusting
float level
Throttle butterfly
Needle Jet
Idle mixture screw
Idle Jet
Diaphragm spring
Diaphragm
Needle carrier
Air density sense port
Needle
Atomiser
Idle circuit inlet
aperture
Air density sense port
Float needle valve
seat
Float needle valve
Jet Carrier
Main Jet