Installing The Crankshaft Bearing Inner Race; Changing Connecting Rod, Conrod Bearing And Crank Pin - KTM 450 SX-F EU Repair Manual

301ENGINE - WORK ON THE INDIVIDUAL PARTS
Installinllhe crankshaft bearinl inner race
- Fix the crankshaft in the vise.
• Info
I
Use soft jaws.
- Slide on the compensating disk.
- Heat the crankshaft bearing inner race in special tool and mount together.
Guideline
1120 °C (248
oF)
- Repeat these steps on the opposite side.
- Ensure that the new crankshaft bearing inner race is flush.
• Info
I
After replacing the crankshaft bearings, the crankshaft end play must be
measured.
Chanlinl conn8ctinl rod, conrad blarinl and crank pin
Main
work
- Position the crankshaft in the press with the special tool
1 Extrude plate, base (77629009001)
( ~
p. 234)
- Position the special tool between the crank webs.
1 Extrude plate, top (77629009002)
( ~
p. 234)
- Press the crank pin with the special tool out of the upper crank web.
1 Pressing device for crankshaft, complete (75029047000)
(~
p. 231)
• Info
I
Hold the lower crank web.
- Remove the connecting rod and bearing.
- Press the crank pin out of the lower crank web.
- Press in the new crank pin as far as possible.
, / Oil hole is aligned with oil hole .
X
If the oil holes are not correctly aligned, the conrad bearing will not be sup-
plied with oil.
- Use compressed air to check that the oil hole is clear.
139