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18
18.4
18.4.1
ENGINE
142
Work on individual arts
Work on the right section of the engine case
308658-10
308660-10
Remove all dowels.
Remove shaft seal ring
O
of the crankshaft.
Remove nozzle
8.
Remove oil nozzle
fD
for conrod bearing lubrication.
Remove screw
C,.
Remove the oil nozzle for piston cooling.
Remove screws@). Remove the bearing retainers.
Remove any sealing mass remnants and clean the engine case section
thoroughly.
Warm the engine case section in an oven.
Guideline
1150 °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
I
Any bearings that remain in the engine case section must be removed
using a suitable tool.
Blow out oil nozzle
(D
with compressed air and check that it is clear.
Guideline
Oil nozzle for balancer
shaft lubrication
M4
2Nm
(1.5 lbf ft)
Loctite
®
243
™
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 all the way to the
stop or so that it is 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 bear
ings will be damaged when they are pressed in.
After the engine case section has cooled, check that the bearings are firmly
seated.
•
Info
I
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.
Mount and tighten nozzle
8.
Guideline
Nozzle, crank chamber
ventilation
M4
Mount and tighten oil nozzle
@).
Guideline
Oil nozzle for conrod
bearing lubrication
M4
Mount the oil nozzle for piston cooling.
Mount and tighten screw
C,.
2Nm
Loctite
®
243
™
(1 .5 lbf ft)
2Nm
Loctite
®
243
™
(1 .5 lbf ft)