Touareg V8-4.2L (AXQ) (2006)
Example
Valve seats, reworking
Reworking intake valve seat
a - = Dia. 26.2 mm
b - = 1.5 to 10.8 mm
Z - = Cylinder head lower edge
a 45° valve seat angle
B - 30° upper correction angle
y - 60 .............................................................................................................................................................................................. lower correction angle
Reworking exhaust valve seat
a - = Dia. 29.0 mm
b - = approximately 1.8 mm
Z - = Cylinder head lower edge
a - 45° valve seat angle
B - 30° upper correction angle
y - 60° lower correction angle