The valve mechanism incorporates the camshafts, cam followers as well as the valves and springs.
- Two camshafts.
- Roller cam follower with one hydraulic valve lifter each per valve.
- Valve and valve springs on inlet and outlet side are identical.
- The vacuum pump is driven by the outlet camshaft and is attached on the timing side.
| 1 | Roller cam follower | 5 | Piston |
|---|---|---|---|
| 2 | Hydraulic valve lifter | 6 | Outlet valves |
| 3 | Valve spring | 7 | Valve stem seal |
| 4 | Inlet valves |