Rotax 912 i series Service Manual

BRP-Rotax
MAINTENANCE MANUAL LINE
REMOVAL OF THE DRIVE GEAR
ATTENTION
The large and small gears are considered the same part with the same part num-
ber and same serial number. They must not be mixed up with other gear sets.
Step
Procedure
1 Heat the hex. nut M30x1.5 with the hot air gun (100–120 °C (212–248 °
F)).
2
Turn clockwise left hand threads to loosen hex. nut M30x1.5 with socket
wrench SW 41 part no. 877445.
Figure 5.4
1
Socket wrench SW 41 part no. 877445
2 Hex. nut M30x1.5
NOTE
The hex. nut has a left handed thread!
Step
Procedure
3
Remove the drive gear and the friction washer from the crankshaft.
NOTE
If necessary, carefully lever off the drive gear with 2 screwdrivers.
NOTE
The gear set (large and small drive gear) are part of the gearbox assy. and both
must be included if sending gearbox out for inspection or overhaul.
Effectivity: 912 i Series
Edition 2/Rev. 0
05–50–00
Page 5
September 01/2018

Rotax 912 i series Specifications

General

Number of Cylinders	4
Max Power	100 hp (73.5 kW)
Max Power Output RPM	5800 rpm
Ignition System	Dual electronic ignition
Oil System	Dry sump, forced lubrication with separate oil tank
Reduction Gear Ratio	2.43:1
TBO	2000 hours
Engine Type	4-stroke, horizontally opposed
Displacement	1352 cm³
Bore x Stroke	84 mm x 61 mm
Max Torque	128 Nm
Fuel Type	Avgas 100LL or unleaded automotive gasoline
Fuel System	Electronic fuel injection
Cooling System	Liquid/air-cooled