| Special tools and workshop equipment required |
Note | t
| In case of repairs to engines with leaking valves, simply grinding
or replacing the seats and seating valves is insufficient. The valve
guides must also be checked for wear, especially in engines with high
mileage. → Chapter. |
| t
| Grind the valve seat only until a proper seating is obtained.
Calculate the maximum grinding prior to grinding. When the grinding
measurement is exceeded, the hydraulic offsetting is no longer guaranteed,
and the engine cylinder head cover must be replaced. |
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