Right Engine Case Half - KTM 450 SX-F Repair Manual

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Right engine case half

– Pry out the shaft seal ring on the crankshaft
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the case.
– Remove the screws from the bearing bolt and take off the bearing
bolt
– Remove the screw and washer from the locking lever and take off
the locking lever
spring.
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– Remove the jet for the crankcase ventilation
– Remove the oil metering jet for the lower conrod bearing
– Remove the jet
– Remove the screws on the bearing retainer and the retaining
7
brackets
– Thoroughly clean the case, removing any residual sealant.
NOTE: only remove the studs and case bushing
the engine case.
– Clean all oil ducts and check whether they are clogged.
– Inspect the engine case half and add-on parts for damage and wear.
Check the oil pump housing for score marks or seizing marks.
– Heat the engine case half in an oven to approx. 150°C and tap on a
level wooden surface, causing the bearings to fall out of the bearing
seats. Any bearings that remain in the case must be pressed out
with
151.12.017.000 and a suitable bit.
– Push new bearings in the bearing seats of the hot engine case,
pressing all the way in until flush with a suitable press/drift tool if
necessary.
NOTE:
The bore in bearing
aligned. Press in the sealing on the bearing
When pressing it in, make sure the case lies flat to avoid damage.
Always press in the bearings on the outer ring or the bearings will be
damaged in the process.
Check the bearings for a tight fit when the case has cooled.
– Press in a new shaft seal ring for the crankshaft
side on the outside until flush.
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– Degrease the thread on the screws for the bearing bolt and apply
Loctite 243. Mount the bearing bolt
the screws to 6 Nm.
– Degrease the thread on the screw for the locking lever and apply
Loctite 243. Screw on the locking lever
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spring and tighten to 6 Nm.
– Degrease the thread on the jet for the crankcase ventilation
apply Loctite 243 and tighten.
– Degrease the thread on the oil metering jet for the lower conrod
bearing
– Degrease the thread on the jet
4 Nm.
– Degrease the thread on the bearing retainer and apply Loctite 243.
Mount the retaining brackets
bearing retainer to 6 Nm.
– Make sure the oil ducts are not clogged.
– Check the studs and case bushing
together with the lock washer.
2
together with the sleeve and locking lever
3
.
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.
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a suitable press/drift
and the bore
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, apply Loctite 243 and tighten.
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6
without damaging
1
.
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.
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if you are replacing
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tool or with bearing
in the engine case must be
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towards the outside.
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with the open
1
and lock washer and tighten
2
, washer, sleeve and
3
, apply Loctite 243 and tighten to
and tighten the screws on the
7
for a tight fit.
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puller
,
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