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| Fit a new valve in the guide. The end of the valve stem should be flush with the guide. Due to the slight difference in stem dimensions, ensure that only an inlet valve is used in the inlet guide and an exhaust valve in the exhaust guide. |
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| Determine rock. Wear limit: max. 1.3 mm |
| If rock tolerance is exceeded: |
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| If the rock exceeds the wear limit, the cylinder head should be replaced. |
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