Rotax 914 series User Manual

Effectivity: 914 Series BRP-Powertrain page 7-1
OM Edition 2 / Rev. 0 April 01/2009
d04479.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
Coolant
Expansions tank
Coolant temperature measuring
page 7-2
page 7-2
page 7-2
page 7-2
Fuel system
Fuel
Fuel pressure regulator
Return line
page 7-4
page 7-4
page 7-4
page 7-4
Lubrication system
Lubrication
Crankcase
Oil pump
Oil circuit vented
Oil temperature sensor
Turbocharger
page 7-6
page 7-6
page 7-6
page 7-6
page 7-6
page 7-6
page 7-6
Electric system
Charging coils
page 7-8
page 7-8
Turbocharger and control system
Regulation boost pressure
Throttle position
Nominal boost pressure
Throttle position versus nominal
airbox pressure
Nominal pressure
page 7-9
page 7-9
page 7-9
page 7-10
page 7-10
page 7-11
TCU caution lamps
Caution lamp
Function test
Orange caution lamp
Red boost lamp
page 7-11
page 7-11
page 7-11
page 7-11
page 7-11
Propeller gearbox
Reduction ratio
Overload clutch
Torsional shock absorber
Backlash
Vacuum pump
page 7-12
page 7-12
page 7-12
page 7-12
page 7-13
page 7-13

Rotax 914 series Specifications

General

Bore	79.5 mm
Stroke	61 mm
Compression Ratio	9.0:1
Cooling System	Liquid-cooled cylinder heads, air-cooled cylinders
Redline	5800 rpm
Engine Type	4-cylinder, 4-stroke
Fuel Type	Avgas 100LL
Oil System	Dry sump
Fuel System	fuel injection
TBO (Time Between Overhauls)	2000 hours
Displacement	1.211 liters (1211 cc)
Power Output	84.6 kW (115 hp) at 5, 800 rpm