Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Power unit | 4-cyl. injection engine (natural gas) | Engine cylinder head, valve gear | Repairing valve gear

Checking valve guides

Special tools and workshop equipment required

t	Universal dial gauge bracket -VW 387-

t	Dial gauge

Test procedure

–	Insert new valve in guide. End of valve stem must be flush with guide. Due to differences in stem diameters, use only an inlet valve in inlet guide and an exhaust valve in exhaust guide.

–	Determine rock.

Wear limit:

Inlet valve guide = 1.0 mm

Exhaust valve guide = 1.3 mm

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