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Checking valve guides > < Renewing valve stem oil seals with cylinder head removed

A4 Mk1

Valve dimensions
   
Valve dimensions
  Note
Inlet and exhaust valves must not be machined. Only grinding-in is permitted.
  A15-0326
DimensionInlet valveExhaust valve
Ø amm27.00 … 27.2024.00 … 24.20
Ø bmm5.958 … 5.9725.958 … 5.972
cmm100.35 … 100.65100.35 … 100.65
α∠°4545

   

Checking valve guides > < Renewing valve stem oil seals with cylinder head removed