Machining valve seat rings - RA05001202910X(05-2910)
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
Preceding work:
Valve guides checked (05-2845)
| Valve seats | machine.
NOTE:
Pay attention to operating instructions of tool manufacturer. Use SERDI form cutting tool number 41196. Use Hunger cutting tool number 23m or 24m. |
| Dimensions | maintain as specified in table |
| Leaktightness with valve installed | check |
| Valve seat width (b) | measure.
NOTE:
Correct valve seat width (b) with correction tools (Hunger) 23m and 24m, if necessary (angle and β).
|
| Valves | insert and measure distance from valve stem end to base of camshaft bearing. |
DATA INLET, EXHAUST VALVE
| Valve seat width (b) | 0.90 - 1.10 mm |
| Valve seat angle (α) | 45° |
| Upper correction angle (β) | 35° |
| Lower correction angle (Y) | 58° |
| Permissible radial runout of valve seat | 0.03 mm |
COMMERCIALLY AVAILABLE TOOLS
| Valve seat turning tool | eg. | SERDI
GmbH Bregenzstr. 69 D-88131 Lindau |
| Form cutting tool | eg. | SERDI
GmbH Bregenzstr. 69 D-88131 Lindau Order no. 41196 |
| Cylinder head clamping device | eg. | Hunger D-80000 Munchen 70 Order no. 221.60.000 |
| Valve seat turning tool | eg. | Hunger D-85356 Munchen Typ VSDN 1/45/30 Order no. 236.03.308 |
| Test set for valve seats | eg. | Hunger D-85356 Munchen Order no. 216.93.300 |
| Cutting tools for valve seats and correction angle (β) and (Y) 23m 24m | eg. | Hunger D-85356 Munchen Order no. 216.64.235 Order no. 216.62.170 |