Installing gearbox shafts
- Installing input, output and intermediate shafts
Caution: Before installing, the gearbox shafts, housing and cover must be thoroughly cleaned and examined for damage. Replace all shaft sealing rings.
- Check that the gearbox shafts are correctly seated.
- Insert the cover into gearbox mount, BMW No. 234700.
- Align the input, output and intermediate shafts so that their gearwheels mesh.
- Insert slip-over sleeve for input shaft, BMW No. 234712, into cover.
- Heat bearing points in cover to 80...100°C (176...212°F).
- Insert input shaft (2), output shaft (3) and intermediate shaft (1) together, all at the same time.
- Install the selector forks.
Installing selector shaft
- Place a spacing washer of the correct thickness in position and install selector shaft (4).
- Engage torsion spring (5) in position.
Installing selector drum
- Place a spacing washer of the correct thickness and the input-side thrust washer on selector drum (7) and secure with a small amount of grease.
- Swing locking lever (6) out towards the edge of the cover and install the selector drum.
- Swing locking lever (6) towards selector drum (7) and engage it in position together with guide plate (4).
- Place shift forks (2, 8, 9) in the guides.
- Install selector shafts (1).
- Install locking pin (5).
- Place thrust washer on selector drum.