Rotax 912 i series Service Manual

BRP-Rotax
MAINTENANCE MANUAL LINE
LOCKING/LOOSEN OF THE CRANKSHAFT
Locking of the
crankshaft
m WARNING
Risk of burns and scalds. Hot engine parts.
Always allow engine to cool down to ambient temperature before starting work.
Special tool For accomplishment the following special tool is required:
Figure 7.5: Special tool
Part number Description
240880
Thread bolt (1)
Instruction The following work procedures are to be accomplished:
Step
Procedure
1
Remove the plug screw (1) M8x20 and sealing ring from the crankcase half
(cyl. 2/4).
2 Turn crankshaft/propeller shaft until the piston of cyl. no. 1 and no. 2 are in
TDC position and lock crankshaft in this position with the thread bolt (2) part
no. 240880.
NOTE
The required recess position of the crankshaft can be additionally
verified by looking through the crankcase recess (3) with a flash
light.
3
Screw the thread bolt (4) into the crankcase. While doing so, move the
crankshaft to and fro slightly with the propeller until the locking screw en-
gages in the recess of the crankshaft, and tighten to 10 Nm (89 in.lb).
Effectivity: 912 i Series
Edition 2/Rev. 0
12–20–00
Page 13
September 01/2018

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