Component Overview
On the turbo engine, the outlet valve is fitted with internal and external valve springs (set of valve springs) and adapted concave washers. The outlet valve in the turbo engine has the same outer dimensions as the outlet valve of the naturally aspirated engine. However, because of the sodium filling, the outlet valve in the turbo engine is lighter and the shank over the shank entries is longer. For further details, please see figures and table below entitled "Valve dimensions".
Valves (shown on turbo cylinder bank 5 to 8)
| 1 | Intake valve (Identical In naturally aspirated and turbo engines) |
| 2 | Valve-seat ring, Intake |
| 3 | Valve guide |
| 4 | Lower valve-spring plate, Intake |
| 5 | Valve-stem seal |
| 6 | Set of valve springs, Intake (Identical In naturally aspirated and turbo engines) |
| 7 | Upper valve-spring plate, Intake |
| 8 | Valve collet |
| 9 | Upper valve-spring plate, outlet (different In naturally aspirated and turbo engines) |
| 10 | Set of valve springs (turbo outlet); valve spring (naturally aspirated engine outlet) |
| 11 | Lower valve-spring plate, outlet (different in naturally aspirated and turbo engines) |
| 12 | Valve-seat ring, outlet |
| 13 | Outlet valve (different in naturally aspirated and turbo engines) |
Distinguishing features of outlet valve on naturally aspirated and turbo engine
Difference between outlet valve on naturally aspirated and turbo engine