BRP-Rotax
MAINTENANCE MANUAL LINE
NON COMPLIANCE OF FUEL QUALITY
General note The use of unsuitable fuel quality has to be entered in the engine log book.
Independent of subsequent following inspections are required:
Non compliance with fuel quality
Step
Procedure
1 Visual inspection of engine.
2
Empty the fuel system according to the instructions of aircraft manufacturer.
3
Replace fuel filter.
4
Flush fuel system.
5
Check differential pressure.
6 Engine test run.
SMOOTH PERFORMANCE OF THE ENGINE
General note
m WARNING
Risk of electric shock!
Ignition “OFF” and system grounded! Disconnect negative terminal of battery.
Inspection Inspection of smooth performance of the engine should be performed at a temperature
about 0 °C to 60 °C (140 °F).
Engine runs sluggishly
Step
Procedure
1
Remove spark plug connector and remove 1 spark plug from each cylinder.
2 Torque must be determined with a suitable jig.
To do this, determine the maximum occurring torque on the propeller shaft
necessary to move the whole crank drive.
The torque must be max. 150 Nm (111 ft.lb).
If the maximum torque is exceeded, perform the following inspections:
• Carry out detailed inspection of the affected gearbox components
• Carry out detailed inspection of crank shaft and crankcase
05–50–00
Page 32
January 01 2020
Effectivity: 912 Series
Rev. 0
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