17 ENGINE
If the bearings do not move freely or are worn:
- Change the bearings.
- Check the shift rollers for damage and wear.
If there is damage or wear:
- Change the shift rollers.
- Check shift rails
8
for run-out on a flat surface.
If there is run-out:
- Change the shift rail.
- Check the shift rails for scoring, wear and smooth operation in the shift forks.
If there is scoring or corrosion, or if the shift fork is stiff:
- Change the shift rail.
- Check sliding plate
0
in contact areas
(9
for wear.
If the sliding plate is worn:
- Change the sliding plate.
- Check return surface Ci) on the sliding plate for wear.
If deep notches are present:
- Change the sliding plate.
- Check guide pin @ for looseness and wear.
If the guide pin is loose and/or worn:
- Change the sliding plate.
310356-10
17.4.36 Preassembling the shift shaft
208
- Preassemble the shift shaft. (
!:JI
p. 208)
- Check clearance
O
between the sliding plate and the shift
quadrant.
Shift shaft - sliding
plate/shift quadrant
clearance
0.40 ... 0.80 mm (0.0157
... 0.0315 in)
If the measured value does not meet specifications:
- Change the sliding plate.
- Secure the short end of the shift shaft in the bench vise.
Guideline
I Use soft jaws.
- Mount sliding plate
O
with the guide pin facing downward
and put the guide pin on the shift quadrant.
- Mount pressure spring@.
- Slide on spring guide (D, push return spring
8,
with the
offset end facing upward, over the spring guide and lift the
offset end over abutment bolt
0.
- Mount washer (D.
..
..
