Valve Lift Adjustment Overview: Notes
As can be seen from the following graphic, the installation location of the servomotor has changed with Valvetronic III. Another new feature is that the eccentric shaft sensor is no longer mounted on the eccentric shaft but has been integrated into the servomotor.
INDEX EXPLANATION CHART
| Index | Explanation |
|---|---|
| 1 | Valvetronic servomotor |
| 2 | Oil spray nozzle |
| 3 | Eccentric shaft |
| 4 | Eccentric shaft minimum stop |
| 5 | Eccentric shaft maximum stop |
The Valvetronic III servomotor contains a sensor for determining the position of the motor and the eccentric shaft. The servomotor is lubricated with engine oil by means of an oil spray nozzle (1) aimed directly at the worm drive and the eccentric shaft mechanism.
INDEX EXPLANATION CHART
| Index | Explanation |
|---|---|
| 1 | Oil spray nozzle |
| 2 | Eccentric shaft |
| 3 | Return spring |
| 4 | Gate block |
| 5 | Inlet camshaft |
| 6 | Intermediate lever |
| 7 | Roller cam follower, intake |
| 8 | Hydraulic valve lash adjustment |
| 9 | Valve spring 18 Socket |
| 10 | Intake valve |
| 11 | Valvetronic servomotor |
| 12 | Exhaust valve |
| 13 | Valve spring |
| 14 | Hydraulic valve lash adjustment |
| 15 | Roller cam follower, exhaust |
| 16 | Exhaust camshaft |
| 17 | Sealing sleeve |