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| Reworking of the cylinder head (face-grinding) is only permissible up to minimum dimension -a-. |
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| Minimum dimension a: 132.6 mm |
Note If the sealing surface is reworked, the valves should be set lower by the same amount (rework valve seat rings) otherwise the valves will strike the pistons. Ensure that the maximum permissible dimensions are maintained → Fig.. |
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