Rotax 912-UL User Manual

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page 10 - 9
Jan. 01/2007
Effectivity: 912 Serie
OM Edition 1 / Rev. 0
BRP-Rotax
10.2) Operating media
10.2.1) Coolant
In principle, 2 different types of coolant are permitted.
- Conventional coolant based on ethylene glycol
- Waterless coolant based on propylene glycol
■ CAUTION: Obey the manufacturer's instructions about the
coolant.
Conventional coolant mixed with water has the advantage of a
higher specific thermal capacity than water-less coolant.
◆ NOTE: The important advantage of water-less coolant is
its higher boiling point than a conventional mix-
ture.
When correctly applied, there is sufficient protection against vapor
bubble formation, freezing or thickening of the coolant within the
operating limits.
Use the coolant specified in the manufacturer's documentation.
■ CAUTION: Obey the latest edition of Service Instruction
SI-912-016 for the selection of the correct coolant.
07032
designation concentrate water
conventional e.g. BASF Glysantine
anticorrosion
50 50
waterless e.g. EVANS NPG+ 100 0
mixture ratio %

Rotax 912-UL Specifications

General

Displacement	1211 cc
Bore x Stroke	79.5 mm x 61 mm
Compression Ratio	9.0:1
TBO (Time Between Overhaul)	2000 hours
Engine Type	4-cylinder, 4-stroke
Power Output	80 hp
Cooling System	Liquid/air-cooled
Fuel Type	Avgas 100LL or unleaded automotive gasoline
Oil Capacity	3 liters
Fuel System	2 carburetors
Oil System	Dry sump forced lubrication with separate oil tank
Reduction Gear Ratio	2.43:1
Max Continuous Power	75 hp (56 kW)