New Beetle L4-1.8L Turbo (AWP) (2003)
b = Max. permissible reworking dimension*
c = 1 .5-1 .8 mm
Z = Cylinder head lower edge
= 45° valve seat angle
= 30° upper correction angle
= 60° lower correction angle
Reworking exhaust valve seat
a = 29.0 mm diameter
b = Max. permissible reworking dimension*
c = Approximately 1.8 mm
Z = Cylinder head lower edge
= 45° valve seat angle
= 30° upper correction angle
= 60° lower correction angle
*) Calculating max. permissible reworking dimension, Refer to Valve Seat, Service and Repair.