Our valves are reworked in Germany, to be exact, we have them reground centerless by a specialised company. As the quality of available valves is getting worse, we have no other choice. The stem surface is too rough, causing early wear of the valve guides. This is well visible even in the photos. Also, the stem tolerances are not within specification, causing seizure betwen valve stem and valve guide. As this is not acceptable for us, we shall only distribute these reworked valves. You can be sure to get quality valves with correct measurements, perfect radial runout and a smooth stem surface for low friction in the valve guide. |
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