Rotax 912 i series Operator's Manual page 80

8.1) Engine preservation
General note
8.2) Engine back to operation
Effectivity: 912 i Series
OM Edition 1/Rev. 0
WARNU
WARNING
Due to the special material of the cylinder wall, there is no need
for extra protection against corrosion for the ROTAX aircraft engi-
nes. At extreme climatic conditions and for long out of service pe-
riods we recommend the following to protect the valve guides
against corrosion:
Step
1 Engine warm up.
2 Engine cool down.
3 Change oil.
4 Remove the top spark plugs and spray all openings withcor-
rosion inhibiting oil.
5 Turn the propeller several times by hand in direction of the en-
gine rotation, so that the corrosion inhibiting oil all necessary
points reaches.
6 Install the Spark plug in according the Maintenance Manual.
Close all openings on the cold engine, such as exhaust end
7
pipe, venting tube, air filter etc. against entry of dirt and hu-
midity.
8 Spray all external engine parts of steel with corrosion inhibit-
ing oil.
If preservation including oil change took place within a year of sto-
rage, oil renewal will not be necessary. For longer storage periods
repeat preservation annually.
Step
1 Remove all plugs and fasteners.
2 Clean spark plugs with plastic brush and solvent.
BRP-Powertrain
Risk of burnings and scalds!
Hot engine parts!
Always allow engine to cool down to ambient
temperature before start of any work.
Procedure
Procedure
page 8-2
January 01/2012