SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 1,9 l SDi engine, mechanics | Engine cylinder head, valve gear | Valve gear: repairing

Valve guides: checking

Special tools and workshop equipment required

t	Bracket -T20020-

Test sequence

When you wish to check the clearance, or determine the replacement of the affected elements, proceed as follows:

–	Insert the valve into its guide. The end of valve stem must be flush with the guide.

–	Due to the slight difference in stem dimensions, ensure that only the inlet valve is used in the inlet guide and the exhaust valve in the exhaust guide.

–	Thoroughly clean the elements to be checked beforehand.

–	Determine the clearance with the -T20020- tool and a comparison meter.

Maximum clearance: 1.3 mm

If the values found are greater, replace the valve guides.

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