Rotax 912 i series Installation Manual

d05398.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 0
79-00-00
Page 7
January 01/2012
1.4) Measuring of the vacuum
Measuring of the
vacuum
See Fig. 4.
Measure the vacuum in the suction oil line (1) - from the oil tank via the oil
cooler to the engine oil pump - at a distance of max. 100 mm (4 in.) from
the oil pump suction connector (2).
At full throttle, the indicated vacuum (3) upstream of the oil pump must
not be less than 0.3 bar (4.35 psi), otherwise the oil hose (1) could col-
lapse and block the oil supply to the engine.

WARNUNG

WARNING
Non-compliance can result in serious injuries or
death!
The vacuum (3) (pressure gauge with liquid damping)
must be verified over the complete engine operation
range. If the oil is cold, the flow resistance increases,
which means that not enough oil will flow on the suc-
tion side.

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