Cylinder Head Components: Camshafts
| Item Number | Description |
|---|---|
| 1 | Intake camshaft |
| 2 | Exhaust camshaft |
| 3 | Exhaust camshaft slot below center line |
| 4 | Inlet camshaft slot above center line |
The camshafts are of a hollow steel tube construction, drilled to save weight. Each camshaft is retained in the cylinder head by the camshaft housing. The intake camshaft is equipped with a VCT unit and also drives the vacuum pump.
The intake camshaft has cam lobes with different profiles. One for a small lifting height of 3.6 mm, and 1 for larger lifting height of 10.0 mm. The transition between the lifting heights is controlled via the Camshaft Profile Switching (CPS) function.
The exhaust camshaft is conventional, i.e. only has a lifting height of 10.0 mm.