Rotax 912 i series Service Manual

BRP-Rotax
MAINTENANCE MANUAL LINE
Chapter: 05–50–00
UNSCHEDULED MAINTENANCE CHECKS
TOPICS IN THIS CHAPTER
Engine check after propeller strike incidents ..........................................................................................2
Removal of the propeller gearbox ...........................................................................................................2
Removal of the drive gear ......................................................................................................................5
Installation of propeller gearbox ..............................................................................................................6
Propeller gearbox with integrated overload clutch .................................................................................. 11
Checking of the overload clutch ............................................................................................................12
Examination after engine failure............................................................................................................15
Returning engine to service after submerging in water............................................................................16
Inspection in extreme climatic conditions ...............................................................................................17
Diminished functional capability of EMS ................................................................................................18
Returning engine to service after influence by fire ..................................................................................18
Exceeding of max. admissible engine RPM ...........................................................................................18
Exceeding of max. coolant temperature.................................................................................................20
Non compliance with the coolant specification .......................................................................................21
Exceeding the max. permissible oil temperature ....................................................................................23
Oil pressure below minimum value........................................................................................................25
Oil specification not respected ..............................................................................................................27
Spark plug not in accordance with specification .....................................................................................29
Non compliance of fuel quality ..............................................................................................................29
Smooth performance of the engine .......................................................................................................30
Lightning strike....................................................................................................................................31
Reporting............................................................................................................................................32
Introduction Special checks must be carried out before next or further flights in the event of an engine
fault (e.g. abnormal operation as defined in the Operators Manual) which impairs the
airworthiness of the engine.
ATTENTION
In the course of special checks specify if additional checks for components (e.g.
hydraulic governor) is applicable. After each special check/repair work, an
engine test run and a leakage check must be carried out.
ATTENTION
Observe without fail all the specified instructions.
Effectivity: 912 i Series
Edition 2/Rev. 0
05–50–00
Page 1
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