11 37 Variable valve gear
WARNING: This page is about a different car, the 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATION - VARIABLE VALVE GEAR
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | ASA screws Guide block to timing case. |
N52K | M6 x 23 | Only one screw (inside) plus the oil spray nozzle are fitted on cylinder no. 3. | 10 Nm |
| 2AZ | ASA screws Torsion spring to cylinder head. |
N52K | M6 x 20 | 10 Nm | |
| 3AZ | ASA screws Electric servomotor to cylinder head and to cylinder head cover. |
N52K | M6 x 16 |
|
10 Nm |
| 4AZ | ASA screw Oil spray nozzle to guide block. |
N52K | M6 x 30 | Oil spray nozzle is fitted on cylinder no. 3 (outside). | 10 Nm |
| 5AZ | Stop screw Stop screw of eccentric shaft to cylinder head. |
N52K | M6 | 10 Nm | |