Locking The Crankshaft - Rotax 914 series Maintenance Manual

7) Locking the crankshaft

See
General note
NOTES:
Locking the
crankshaft
The following work procedures are to be accomplished:
Step
1
2
3
After completion of work/check:
Loosen the
crankshaft
Step
1
2
Effectivity: 914 Series
Edition 2 / Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Fig. 10.
The thread bolt for crankshaft locking is part of the stan-
dard tool kit supplied with each engine.
Risk of Burns!
WARNING WARNUNG
Hot engine parts!
Always allow engine to cool down to ambient tempera-
ture before start any work.
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.
NOTES: Turn crankshaft for relief the position indification until the trig-
ger boss (3) is between the both trigger coil (4,5) at the po-
sition.
The required recess position of the crankshaft can be addi-
tionally verified by looking through the crankcase recess (6)
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 (6) of the crankshaft, and tighten to 10 Nm (88.48 in.lb).
Remove the thread bolt (2) and refit crankshaft plug screw M8x20 (1) along
with a new sealing ring with a torque of 15 Nm (133 in.lb).
To check, use wrench 24 mm (15/16 inch.) to rotate the crankshaft at hex.
screw (7) on the magneto side.
Procedure
Procedure
12-20-00
page 21
January 01/2010