–
| Grind in valve/valve seat with fine grinding paste so as to achieve a perfect contact pattern -arrows-. |
–
| Check contact pattern e.g. with water colour (perfect contact pattern over entire circumference). |
–
| Inspect valves for tightness. |
The tightness of the valves can be checked by filling petrol into the inlet and outlet canal (no petrol must flow out at the valve seat). |
After the repair measure the dimension -a- again and calculate the maximum permissible reworking dimension → Chapter. |
Note If the reworking dimension is exceeded, proper operation of the valve gear is no longer assured and the cylinder head must be replaced. |
Note After installing the cylinder head, check the hydraulic bucket tappets → Chapter. |
|
|
|