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18 ENGINE
175
Measure the axial clearance of the crankshaft and the balancer shaft, (if p. 175)
18.4.9
Installing the crankshaft bearing inner race
Main work
- Fix the crankshaft with special tool O and
©
secure in the vise.
©
o
Press-out plate, top (75029047050) (P p. 326)
Press-out plate, base (75029047051) (if p. 326)
j
%
311896-10
£
Position compensating disk.
Warm-up the inner bearing race in special tool
©
Guideline
©
120 °C (248 °F)
Mount the inner bearing race.
Repeat these steps on the opposite side.
Make sure that the new inner bearing race is installed flush.
IK
3
311897-10
Info
After changing the crankshaft bearing and the conrod bearing, measure
the crankshaft axial play.
I
Finishing work
- Measure the axial clearance of the crankshaft and the balancer shaft. (PI p. 175)
18.4.10 Measuring axial clearance of crankshaft and balancer shaft
Insert the crankshaft and balancer shaft in the right section of the engine casing.
Info
Do not forget the dowels.
I
Mount the left section of the engine case.
Mount and tighten the screws.
Guideline
n
Screw, engine case
10 Nm (7.4 Ibf ft)
M6
311844-10
Mount the dial gauge support on the engine case and measure and note down
the crankshaft axial play.
Guideline
Crankshaft - axial clearance
0.15... 0.25 mm (0.0059... 0.0098 in)
If the measured value does not meet specifications:
-
Remove the crankshaft.
-
Remove the crankshaft bearing inner race. (P p. 172)
-
Calculate the thickness of the compensating disks.
-
Add or remove compensating disks equally on both sides.
Info
If the axial play is too small, remove compensating disks.
If the axial play is too large, add compensating disks.
I
Install the crankshaft bearing inner race. (P p. 175)
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