16
ENGINE
125
305642-10
–
Remove transmission shafts
.
Info
The stop disk of the countershaft usually sticks to the bearing.
–
Take off the O-ring of countershaft
.
16.4
Work on individual parts
16.4.1
Work on the right section of the engine case
305649-10
–
Remove oil jet
.
–
Remove bearing locks of the main shaft bearing
, of the countershaft
bearing
, and of the shift drum bearing
.
–
Remove any sealing mass remnants and clean the engine case section thoroughly.
–
Pull the dowels out of the housing.
–
Warm the engine case section in an oven.
Guideline
150 °C (302 °F)
–
Knock the engine case section against a level wooden plate. This will cause the
bearings to drop out of the bearing seats.
Info
Any bearings that remain in the engine case section must be removed using
a suitable tool.
305650-10
–
Remove oil jet
.
–
Remove the cover plate
for the oil return line.
–
Press out the shaft seal ring
of the crankshaft from the inside to the outside.
–
Remove the shaft seal rings
of the water pump.
–
Press in the shaft seal ring
of the crankshaft from the outside to the inside with
the open side facing in.
Info
The shaft seal ring must be flush on the outside.
–
Press in the shaft seal rings of the water pump with the open side facing out so
that it is flush.
–
Warm the engine case section again.
Guideline
150 °C (302 °F)
305651-10
–
Insert the new cold bearings into the bearing seats of the hot engine case section
and, if necessary, use a suitable press drift to push the bearing from the inside to
the outside, all the way to the stop or so it is flush.
Info
The shift shaft bearing
must be pressed in from the outside to the
inside until it is flush.
When pressing the bearing in, ensure that the engine case section is level to
prevent damage.
Only press the bearings in via the outer bearing race; otherwise, the bear-
ings will be damaged when they are pressed in.
–
After the engine case section has cooled, check that the bearings are firmly seated.
