Rotax 912 i series Service Manual

BRP-Rotax
MAINTENANCE MANUAL LINE
TYPE DESCRIPTION
The type description consists of the following parts:
e. g. ROTAX
912
iSc Sport
3
type
certification
configuration
additional
designation
Designation
Designation Description
Type 912 4-cyl. horizontally opposed, normal aspirated
engine.
Certification iSc Sport Certified to EASA CS-E (TC No. EASA.E.121).
iS Approved to ASTM F2339
iS Sport Approved to ASTM F2339
Configuration 2 Prop shaft with flange for fixed prop.
3
Prop shaft with flange for constant speed propeller
and drive for hydraulic governor for constant speed
propeller.
Additional
designation
Options Available options (optional equipment) for the engine type mentioned above:
external
alternator
vacuum pump governor
exhaust
system
for configura-
tion 2
YES YES NO YES
for configura-
tion 3
YES NO YES YES
NOTE
Conversion of the version 2 to version 3 and vice versa may be accomplished by
BRP-Rotax Authorized Distributors or their Service Center.
Effectivity: 912 i Series
Edition 2/Rev. 0
00–00–00
Page 3
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