Working On Individual Parts; Working On The Right Section Of The Engine Case - Husqvarna FC 250 2017 Repair Manual

Working on individual �arts
17.4
17.4.1

Working on the right section of the engine case

Remove all dowels.
Remove shaft seal ring
Remove nozzle
Remove oil nozzle
Remove screw
Remove the oil nozzle for piston cooling.
Remove screws
Remove any remnants of sealing compound and clean the
section of the engine case thoroughly.
Warm the section of the engine case in an oven.
Guideline
1150 °C (302 °F)
Knock the section of the engine case against a level wooden
board. This will cause the bearings to drop out of the bearing
seats.
Info
310334-10
Any bearings that remain in the section of the engine
case must be removed using a suitable tool.
Blow out oil nozzle
is clear.
Guideline
Oil nozzle for
balancer shaft
lubrication
Insert the new cold bearings in the bearing seat 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
When pressing in, ensure that the section of the
engine case lies flat in order prevent damage.
Only press the bearings in using the outer bearing
race; otherwise, the bearings will be damaged when
they are pressed in.
After the section of the engine case 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
side facing out so it is flush.
O
of the crankshaft.
@.
@)
for conrod bearing lubrication.
8.
0.
Remove the bearing retainers.
C)
with compressed air and check that it
M4
2 Nm (1.5 lbf ft)
O
of the crankshaft with the open
ENGINE 17
Loctite ® 243
™
185