SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4-cyl. injection engine. (1.6ltrs., 2 valves) | Engine cylinder head, valve gear | Valve gear

Valve guides checking

Special tools and workshop equipment required

t	bracket -T20020-

t	Dial gauge

Test sequence

–	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.

–	Determine rock.

Wear limit: 0.8 mm

If rock tolerance is exceeded

–	Renew cylinder head → Chapter.

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