Rotax 912 i series Installation Manual

d05785.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 0
75-00-00
Page 8
January 01/2012
2.1) Cooling system requirements
Safety
Coolant hoses See Fig. 4.
NOTE: Aluminium tubes with an inner diameter of 25 mm (0.98 in.)
can be used instead of longer hoses. These must have a
bulge (1) in order to prevent coolant hoses working loose.
Note as well that this will double the number of hose clips
required!
- Temperature resistance, min. 125 °C (257 °F)
- Pressure durability:min. 5 bar (72 psi)
- Inner diameter: 25 mm
- Bending radius: min. 175 mm (6.89 in.) (except moulded hoses)
- Material: 100 % resistant to glycol, antifreeze and ozone.
Graphic Drawing aluminium tube
Fig. 4 09158

WARNUNG

WARNING
Non-compliance can result in serious injuries or death!
The cooling system must be designed so that the op-
erating limits are not exceeded.
To minimize flow resistance, use radiators that have
both a parallel flow and have a low flow resistance. A
prime example would be the GENUINE-ROTAX radia-
tors. Be sure to use short hoses and pipelines.

WARNUNG
NOTICE
All components of the cooling system must be suitably
secured.

WARNUNG
NOTICE
Hoses exposed to direct heat radiation from the ex-
haust system, must be suitably protected with heat-re-
sistant protection tubes, for example.
1

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