Rotax 912 Series Service Manual

BRP-Rotax
Maintenance Manual
Effectivity 912/914 Series
Edition 1 / Rev. 0
72-00-00
page 41
May 01/2007
d02622
— Carry out a visual inspection of the dog gear (11) and the dog hub
(12) to establish whether pitting is visible on the gear-tooth system
and/or the sliding ramps (GB08) of the dogs. Ensure that the ramp
tops of the dog gear are clearing the ramp valleys of the dog hub.
Check the gap between the ramp top and the ramp valley, see
dimension (GB07). See 72-00-00 sec. 4. Light to medium traces of
wear and pitting on the dogs are permissible.
— Check the gear-tooth system (14) of the gear set.
— Check the eccenter for the fuel pump and the fuel pump tappet for
wear, see 72-00-00 sec. 3.9.4 and 73-00-00 sec. 3.4.8
— Check the step collar for wear in the area of the disc spring support,
see 72-00-00 sec. 3.9.4.
— Measure the thickness of the plastic thrust washer (13) between the
dog gear (11) and the drive gear (15), see dimension (GB11).
See 72-00-00 sec. 4.
— Check the hardened steel dog gear bush (16) for wear.
GB08
GB07
GB11
07420
Fig. 72-40
13
11
12

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