d02880.fm
MAINTENANCE MANUAL
BRP-Powertrain
Effectivity: 912 Series
Edition 2 / Rev. 0
12-20-00
page 11
October 01/2009
4) Leakage check
General note
Visual inspection of the whole engine for leaks. If leaks are visible, locate
the cause and remedy the fault.
Instruction NOTES: If a leak is suspected, then the following check is possible:
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.
Detailed visual inspection specially on steel fuel lines in the area of con-
nections (fittings) (2) for leaks and cracks is necessary. See Fig. 4.
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. Se-
cure 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!
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