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Engine Maintenance Manual
Jabiru Aircraft
Pty Ltd
JEM0002-5
Jabiru 2200 & 3300 Aircraft Engines
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ISSUE
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5
Dated : 2nd June 2015
Issued By: AS
Page: 29 of 103
L:\files\Manuals_For_Products\Engine_Manuals\Engine Maintenance Manual 22 & 33\JEM0002-5.docx
5.7
Engine Stop and Start During Flight
Reduce power to 2000 RPM to cool engine for 30 seconds, then to idle.
Switch ignitions OFF. At higher speeds (above 90 KIAS) the propeller may windmill
– reduce
aircraft speed until propeller stops turning.
Starting procedure is the same as ground starting: without choke for a warm engine & with
choke for a cold engine. As the engine cools quickly when stopped in flight the choke will
normally be needed to restart.
WARNING
DO NOT apply the starter motor if the propeller is windmilling.
5.8
Operation in Winter
It is recommended to carry out an engine service prior to the start of the cold season. For
selection of oil to suit colder weather consult the table of lubricants given in the Engine
Specifications above.
Refer to Section 10.15 for the Troubleshooting Cold Start Checklist if the engine becomes
difficult to start.
5.9
Carburettor Icing
It is important to distinguish between two kinds of icing:
i)
Icing due to water in fuel, and
ii)
Icing due to high air humidity.
5.9.1 Icing Due to Water in fuel
Water in fuel will accumulate at the lower parts of the fuel system & can lead to freezing of fuel
lines, filters or jets. Remedies are:
a) Drain, using fuel tank water drain.
b) Ensure fuelling without traces of water. If in doubt, use a chamois as a filter.
c) Install a generously sized water separator.
d) Ensure that fuel lines do not permit the accumulation of water.
e) Prevent condensation of humidity, i.e. avoid temperature differences between the aircraft &
fuel.
CAUTION:
Do not add any form of alcohol (including automotive fuels with Ethanol or similar
additives) to a Jabiru Aircraft fiberglass fuel tank unless directed otherwise by the aircraft
operating manual. The sealant used in some (older) tanks will be damaged if it comes into
contact with alcohol, leading to leaks.
5.9.2 Icing Due to High Air Humidity.
Carburettor icing due to humidity may occur in the carburettor venturi & leads to performance
loss due to changes in the mixture.
The only effective remedy is to preheat the intake air by use of the Carburettor Heat Control.
5.10
New Engine Operation
This engine has been ground run to a specific run in program and is ready for flight when
delivered.
Before initial start add oil to engine (2.3 litres with cooler for 2200 engine, 3.5L with cooler for
3300 engine).
The engine has been INHIBITED before dispatch from the factory. It is recommended that this
is removed before the first engine start: remove 1 spark plug from each cylinder and apply the
starter motor for around 10 seconds: inhibitor oil will be ejected from the cylinders. Re-fit spark
plugs & re-assemble engine.
During storage and transport it is common for some inhibitor oil to run into the carburettor.
Remove the carburettor bowl and inspect it for oil before running. Open the throttle butterfly