Rotax 912 i series Operator's Manual

Effectivity: 912 i Series BRP-Powertrain page 7-1
OM Edition 1/Rev. 0 January 01/2012
d05871.fm
7) Description of systems
Introduction This chapter of the Operator Manual contains the description of
cooling system, fuel system, lubrication system, electric system
and the propeller gearbox.
Table of content As already mentioned in the preface, the system descriptions only
apply to the engine, not to a specific application in a particular air-
craft. The aircraft manufacturers Operators Manual is therefore
definitive in terms of the operation of the engine, as it contains all
the aircraft specific instructions.
Subject Page
Cooling system of engine
Cooling
Coolant
Expansions tank
Coolant temperature measuring
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Fuel system
Fuel
Fuel pump switches
Fuel pressure regulator
Return line
Page 7-4
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Lubrication system
Lubrication
Crankcase
Oil pump
Oil venting system
Oil temperature sensor
Oil pressure sensor
Page 7-6
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Electric system
EMS overview
EMS power supply
LANE select switch A/B
EMS main switch
Ignition system
Fuel injection
ECU
Main functions of the ECU
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Propeller gearbox
Reduction ratio
Torsional shock absorber
Governor
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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