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17
ENGINE
17.4
Working on individual
Work on the right section of the engine case
17.4.1
arts
Remove all dowels.
Remove shaft seal ring
Remove nozzle
Remove oil nozzle
Remove screw
Remove 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.
306539-10
Blow out oil nozzle
Guideline
Oil nozzle for balancer
shaft lubrication
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
306540-10
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
flush.
Mount and tighten nozzle
Guideline
Nozzle, crank chamber
ventilation
Mount and tighten the oil nozzle
Guideline
Oil nozzle for conrod
bearing lubrication
Mount the oil nozzle for piston cooling.
Mount and tighten screw
O
of the crankshaft.
8.
fD
for conrod bearing lubrication.
C,.
(D
with compressed air and check that it is clear.
M4
O
of the crankshaft with the open side facing out so it is
8.
M4
@).
M4
C,.
2Nm
Loctite
243
®
(1.5 lbf ft)
2Nm
Loctite
243
®
(1 .5 lbf ft)
2Nm
Loctite
®
243
(1 .5 lbf ft)
140
™
™
™
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