Rotax 914 series Installation Manual

Effectivity: 914 Series
Edition 2 / Rev. 0
d04283
page 131
July 01/2008
BRP-Rotax
INSTALLATION MANUAL
22) Hydraulic governor for constant speed propeller
22.1) Technical data
See Fig. 88
◆ NOTE: See therefore also SB-914-035 "Installation/Use of governors for Rotax
engine type 912 and 914", latest issue.
- drive via prop gear
- location of the necessary connection on the crankcase:
x axis
mm
y axis
mm
z axis
mm
-206,3 0 51,5
connection
coordinates
09191
- connections
mounting pad: AND20010
thread size: M8
Effective thread length: max. 14 mm (0.55 in.)
toothing: internal spline 20/40 SMS 1834 NA 14x1.27x30x12
direction of rotation of governor drive: clockwise, looking at mounting pad
- power input: max. 600 W
- operating pressure: max. 30 bar (435 psi.)
■ CAUTION: Pay attention to manufacturer's specifications.
◆ NOTE: Speed reduction from crankshaft to hydraulic governor is 1,842, thus
the vacuum pump runs with 0,54 of engine speed.

Rotax 914 series Specifications

General

Bore	79.5 mm
Stroke	61 mm
Compression Ratio	9.0:1
Cooling System	Liquid-cooled cylinder heads, air-cooled cylinders
Redline	5800 rpm
Engine Type	4-cylinder, 4-stroke
Fuel Type	Avgas 100LL
Oil System	Dry sump
Fuel System	fuel injection
TBO (Time Between Overhauls)	2000 hours
Displacement	1.211 liters (1211 cc)
Power Output	84.6 kW (115 hp) at 5, 800 rpm