Note: To protect the gasket surfaces of the engine block, place the old gasket under the bearing puller.
Always renew the mainshaft sealing ring.
Heat the left of the engine block to 80-100°C (176-212°F).
Using bearing puller plate, BMW # 11 6 561, spindle, BMW # 11 6 562, and spreader sleeve, BMW # 11 6 565, pull off the ball bearing.
Heat the right of the engine block to 80-100°C (176-212°F).
Using bearing puller plate, BMW # 11 6 561, spindle, BMW # 11 6 562, and spreader sleeve, BMW # 11 6 564, pull off the ball bearing.
Installation is the reverse of the removal procedure: pay particular attention to the following.
Note: The sealed ends of the cage must point outwards.
To install the ball bearing, heat the engine block to 80-100°C (176-212°F) and spray the ball bearing with BMW chilling spray.
Wear limit values for bearing seats in housing:
- Magneto side:
- Countershaft: max. 0 46.99 mm (1.850 in)
- Mainshaft: max. 0 62.02 mm (2.442 in)
- Clutch side:
- Countershaft: max. 0 51.99 mm (2.047 in)
- Mainshaft: max. 0 46.99 mm (1.850 in)