Smooth Performance Of The Engine - Rotax 912 iSc Maintenance Manual

3.13) Smooth performance of the engine

See
General note
Inspection of smooth performance of the engine should be performed at
Inspection
a temperature about 0 °C to 60 °C.
1
2
Measuring torque required to turn crank drive
Graphic
NOTE:
Fig. 6
Effectivity: 912 i Series
Edition 1/Rev. 1
BRP-Powertrain
MAINTENANCE MANUAL
Fig. 6.
Risk of electric shock!
WARNING WARNUNG
Ignition "OFF" and system grounded! Disconnect
negative terminal of aircraft battery.
Step
Remove spark plug connector and remove 1 spark plug from each cylinder.
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 (110.64 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 drive
Always use protection of propeller edge when doing this test.
Engine runs sluggishly
Procedure
05-50-00
page 21
July 01/2012