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Engine lubrication > < Machining valve seats

A4 Mk3

Checking valve guides
Checking valve guides
Special tools and workshop equipment required
t  Universal dial gauge bracket -VW 387-
t  Dial gauge
   
–  Insert new valve into guide. End of valve stem must be flush with guide. Only insert inlet valve into inlet guide and exhaust valve into exhaust guide, as the stem diameters are different.
–  Determine wear limit (sideways play): max. 1.3 mm.
–  Renew cylinder head if the determined sideways play is above wear limit.
  V15-0133

Engine lubrication > < Machining valve seats