912 Engine Specs

4 cylinder, 4 stroke liquid/air cooled engine with opposed cylinders, dry sump forced lubrication with seperate 3l (.8 gal US) oil tank, automatic adjustment by hydraulic valve tappet, 2 CD carburetors, mechanical fuel pump, electronic dual ignition, electric starter, integrated reduction gear i= 2.273 (optional 2.43).

 

Version

Performance

Torque

Max RPM

 

kW

HP

RPM

Nm

ft. lb.

RPM

RPM

912 UL2

58.0

79

5500

103

75.9

4800

5800

Max 5 min (take-off)

59.6

81

5800

 

 

 

 

 

Bore

Stroke 

Displacement 

Compression
Ratio 

79.5 mm

3.13 in.

61 mm

2.4 in.

1211.2 cm3

73.91 cu. in.

9.0:1

Options

912 UL 3

Suitable for 'Constant Speed' propellers.
Includes:
drive for hydraulic variable speed governor
Woodward variable speed governor (part# 886 730)
Slipper clutch for reduction gear box.

912 UL 4

Suitable for 'fixed pitch' propellers
Same as Rotax 912 UL2 but fitted with propeller shaft that would allow the engine to be converted to a 912 UL 3 for use with a constant speed propeller.