1131 CAMSHAFTS (X4 M40i)
1131 TIGHTENING TORQUE OVERVIEW
| Bearing journal to crankcase | ||
| Replace bearing journal. Clean thread. |
Tightening torque | 20 Nm |
| Bearing journal to cylinder head | ||
| Replace bearing journal. | Tightening torque | 20 Nm |
| Bottom chain tensioner to crankcase | ||
| M6 x 22 Clean thread. |
Tightening torque | 9 Nm |
| Chain tensioner to cylinder head | ||
| Chain tensioner piston M22x1.5 | Joining torque | 20 Nm |
| Angle of rotation | 30° | |
| Exhaust camshaft to cylinder head | ||
| M6 Tensile strength of screw 8.8 |
Joining torque | 9.6 Nm |
| Tightening torque | 9.6 Nm | |
| M6 Tensile strength of screw 10.9 |
Joining torque | 11.8 Nm |
| Tightening torque | 11.8 Nm | |
| Intake camshaft to cylinder head | ||
| M6 Tensile strength of screw 8.8 |
Joining torque | 9.6 Nm |
| Tightening torque | 9.6 Nm | |
| M6 Tensile strength of screw 10.9 |
Joining torque | 11.8 Nm |
| Tightening torque | 11.8 Nm | |
| Preload timing chain | ||
| Tightening torque | 0.6 Nm | |
| Sprocket wheel at the crankcase | ||
| Clean thread. | Tightening torque | 108 Nm |