Rotax 912 Series Service Manual

BRP-Rotax
Maintenance Manual
Effectivity 912/914 Series
Edition 1 / Rev. 0
72-00-00
page 27
May 01/2007
d02622
3.9.3) Removal of roller bearing for - Series 4
See Fig. 72-24.
After the propeller gearbox is removed, the crankcase side propeller
shaft bearing can be replaced if necessary.
For the extracting procedure it is necessary to drill a bore (2) of at least
6.2 mm dia., (1/4") into the center of the oil inlet cover (1).
■ CAUTION : The oil inlet cover is thus rendered useless and must be
replaced before installation!
■ CAUTION : Grease the grooves of the drill slightly to ensure that
the majority of the metal chips adhere to the drill.
Remove metal chips carefully after drilling.
The roller bearing is pulled out together with the oil inlet cover. Remove
the retaining ring (3) with circlip pliers. On the gearbox side, fit puller cap
(4), part no. 876489, and push hex. screw (5) through the cap, roller
bearing (6) and the hole drilled in the oil inlet cover (1). Fit the pullout
plate (7) with the nut (9) and washer (8) on the back end. By turning the
hex. screw clockwise, the roller bearing is pulled out together with the
oil inlet cover. Remove the O-ring (10).
00250
8
9
10
1
2
3
4
5
6
7
Fig. 72-24

Rotax 912 Series Specifications

General

Redline	5800 rpm
TBO	2000 hours
Displacement	1211 cc
Bore	79.5 mm
Stroke	61 mm
Power Output	80 hp (59.6 kW)
Compression Ratio	9.0:1
Fuel Type	Avgas 100LL
Ignition System	Dual electronic ignition
Fuel System	Fuel Injected
Oil System	Dry sump
Engine Type	4-cylinder, horizontally opposed, 4-stroke