Skoda Workshop Service and Repair Manuals > Octavia Mk1 > Drive unit | 1.6 ltr./75 kW Engine - Mechanical Components | Engine cylinder head, valve gear | Valve stem seals, valves guides, valve seats | Reworking valve seats | Reworking valve seats with NAC milling cutter

Reworking valve seats with NAC milling cutter

–	Place cylinder head on a felt base and secure to prevent it from turning.

–	Match diameter of guide drift to diameter of valve guide.

–	Match diameter of milling cutter to diameter of valve seat.

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