17.4.2
17 ENGINE
Working on the left section of the engine case
310335-10
Remove all dowels.
Remove shaft seal ring
O
of the crankshaft,
8
shift shaft
and
(D
countershaft.
Remove oil nozzle
8
for alternator cooling.
Remove oil nozzle
0
for piston cooling.
Remove screws (D. Remove the bearing retainers.
Remove any remnants of sealing compound and clean the
engine case section thoroughly.
Warm the engine case section in an oven.
Guideline
11
so
0
c
(302 °F)
Knock the engine case section against a level wooden board.
This will cause the bearings and washer @ to drop out of
the bearing seats.
Info
Any bearings that remain in the engine case section
must be removed using a suitable tool.
Mount washer @.
Insert the new cold bearings in the bearing seats of the
heated section of the engine case; if necessary, use a
suitable press drift to push them all the way in and make
them flush.
•
Info
I
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 bearings will be damaged when they
are pressed in.
After the engine case section has cooled, check that the
bearings are firmly seated.
Info
If the bearings are not firmly seated after cooling, it
is likely that they will rotate in the engine case when
warm. In this case, the engine case must be renewed.
Mount the dowels.
Press in shaft seal ring
O
of the crankshaft with the open
side facing out so it is flush.
Press in shaft seal ring
8
of the shift shaft so it is flush with
the open side facing in.
Press in shaft seal ring
(D
of the countershaft so it is flush
with the open side facing in.
Mount and tighten oil nozzle
e.
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