Rotax 912 iS Sport, Maintenance Manual

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MAINTENANCE MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 0
12-20-00
page 7
January 01/2012
3) Leakage check
General note
Visual inspection of the whole engine for leaks. If leaks are visible, locate
the cause and remedy the fault.
Instruction
NOTE: If a leak is suspected, the following steps must be taken:
Water pump
Checking water pump for leaks.
If the leakage bore, located at the base of the ignition housing, is dripping
oil, the oil seal on the water pump shaft may be defective and must be
replaced. In the case of coolant drips at the leakage bore, the coolant
mechanical seal must be replaced (inspect the quality of the coolant).
Fuel lines
Inspect fuel lines, their connections and screw fasteners. Look for scuff-
ing marks or other damage.
Complete a detailed visual inspection. When checking steel fuel lines (1),
pay attention to the connection areas (2). Look for leaks and cracks.
See
Fig. 1.

WARNUNG
NOTICE
Leaking connections can lead to engine problems or
engine failure!
Step Procedure
1 Cleaning the engine.
2 Operate the engine until the temperatures have stabilized for a period of 5
min (engine oil temperature between 50 to 70 °C (122 - 160 °F).
3 Switch “ OFF “ ignition and secure engine against unintentional operation.
Secure aircraft against unauthorized operation.
4 After shut down of engine no liquid must drip down.

WARNUNG
NOTICE
Avoid overstretching the fixing elements. Always
comply with the specified torque!