Smooth Performance Of The Engine - Rotax 912 Series Maintenance Manual

3.12) Smooth performance of the engine

General note See
Inspection Carry out inspection at a temperature from 0° C up to 60° C (140 °F).
Step
1
2
Graphic Measuring torque required to turn crank drive
NOTES:
Fig. 6
Effectivity: 912 Series
Edition 3 / Rev. 1
BRP-Powertrain
MAINTENANCE MANUAL
Fig. 6.
Risk of electric shock!
WARNUNG WARNING
Ignition "OFF" and system grounded! Disconnect neg-
ative terminal of aircraft battery.
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 max. permissible torque is exceeded, following inspections are to be
performed:
- Carry out detailed inspection of the affected gearbox components
- Carry out detailed inspection of crank driv
Länge L (m) /
length L in m
Kraft F in N /
force F in N
Always use a propeller guard (edge protection) when per-
forming this inspection.
Engine runs sluggishly
Procedure
05694
05-50-00
page 22
January 01/2013