8.1) Engine preservation and storage
m WARNING
Risk of burnings and scalds! Hot engine parts!
Conduct checks on the cold engine only!
Due to the special material of the cylinder wall, there is no need
for extra protection against corrosion for the ROTAX® aircraft
engines. At extreme climatic conditions and for long out of serv-
ice periods we recommends the following to protect the valve
guides against corrosion:
Step Procedure
1 Operate the engine until the temperatures have stabilized
for a period of 5 min (engine oil temperature between 50 to
70 °C (122 to 160 °F).
2 Switch the engine OFF.
3 Allow the engine to cool down.
4 Change oil.
5 Remove the top spark plugs and spray all openings with
corrosion inhibiting oil.
6 Turn the propeller several times by hand in direction of the
engine rotation, so that the corrosion inhibiting oil all nec-
essary points reaches.
7 Install the spark plug in according the Maintenance
Manual.
8 Close all openings on the cold engine, such as exhaust
end pipe, venting tube, air filter etc. against entry of dirt
and humidity.
9 Spray all steel external engine parts with corrosion inhibit-
ing oil.
Page 8-2
November 01/2016
BRP-Rotax Effectivity: 912 Serie
Edition 4 / Rev. 0
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