Locking/Loosen Of The Crankshaft - Rotax 912 iSc Maintenance Manual

6) Locking/Loosen of the crankshaft

See
General note
NOTE:
Locking the
crankshaft
For accomplishment the following special tool is required.
Special tools
part no. 240880
Special tool
Graphic
Fig. 5
The following work procedures are to be accomplished:
Instruction
Step
1
2
3
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Fig. 5. and Fig. 6
The thread bolt for crankshaft locking is part of the standard
tool kit supplied with each engine.
Risk of Burns!
WARNING WARNUNG
Hot engine parts!
Always allow engine to cool down to ambient temper-
ature before start any work.
Part number
(1) Thread bolt
1
Part
1
Remove the plug screw (1) M8x20 and sealing ring from the crankcase half
(cyl. 2/4).
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.
Screw the thread bolt (2) into the crankcase. While doing so, move the crank-
shaft to and fro slightly with the ring spanner until the locking screw engages
in the recess of the crankshaft, and tighten to 10 Nm (88.48 in.lb).
Description
Function
Thread bolt
Procedure
05910
12-20-00
page 15
January 01/2012