SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4 cylinder Fuel-injection engine (1.4l, 4 valves) | Engine cylinder head, valve gear | Valve control | Valve seats: subsequent grinding

Reworking the exhaust valve seat

Dim.		Exhaust valve seat:
Ø a	mm	25,0
b	mm	Max. permissible reworking dim. → Note
c	mm	about 1.8
Z		Lower edge of cylinder head
α		45° valve seating angle
β		30° upper correction angle
γ		60° lower correction angle

¹⁾	Calculating maximum permissible reworking dimension → Chapter

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