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Camshaft seal - replace > < Grind inlet valve seat

Polo Mk4

Grind exhaust valve seat
   
Grind exhaust valve seat
  N15-0147
a= Ø 1.05 in
b= maximum trimming dimensions admissible
c= max. 1.8..00.20.00 in
Z= Lower cylinder head edge
α= 45° Valve seat angle
β= 30° Upper correction angle
γ= 60° Lower correction angle

   

Camshaft seal - replace > < Grind inlet valve seat