English - 53
Check the crank bearing. The connecting rod
shall not have any radial play (up and down). See
figure 75.
It should, however, have axial play, in order to
ensure good lubrication of the crank bearing
among other things.
Inspect the small end of the connecting rod. See
figure 74.
If seizure marks or discolouration are found in the
bearing track the crankshaft must be replaced.
7.23 Assembling the crankcase and
crankshaft
1
Mount the bearings in the crankcase halves.
Heat the crankcase halves to approx. 110°C using
a hot air gun. Put the ball-bearings in position. See
figure 76.
Use a suitable punch and hammer, if needed.
2
Fit the sealing rings in the crankcase halves with
the help of a suitable punch. See figure 77.
Turn the sealing rings so the metal collar faces
outwards.
Fig 74
Fig 75
Fig 76
Fig 77
Crankshaft and crankcase
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