1127 COUNTERBALANCE SHAFTS (230i and 230i xDrive coupe/convertible)
1127 DUAL-MASS BALANCE - TIGHTENING TORQUE SPECIFICATION
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Gear to counterbalance shaft | B42S20O0/B46M0AD0/B48M0AD0 | M10 | 1. Joining torque | 20 Nm |
| 2. Angle of rotation | 180° | |||
| 2AZ Idler gear to crankcase | B42S20O0/B46M0AD0/B48M0AD0 | M12 | 1. Joining torque | 10 Nm |
| 2. Angle of rotation | 45° |
1127 TIGHTENING TORQUE OVERVIEW
| Preloading the spring balance to tighten the idler gear | ||
| Spring balance | Preload | 30-40 N |
| Special tool 2 288 054 to crankshaft | ||
| Tightening torque | 20 Nm | |