Passat GLS Wagon L4-1.8L Turbo (AUG) (2001)
Refacing intake valve seat
a
= 26.2 mm
b
= Maximum allowable refacing dimension*
c
= 1.5 to 1.8 mm
Z
= Lower edge of cylinder head
a
= 45° Valve seat angle
p
= 30° Upper correction angle
y
= 60° Lower correction angle
Refacing exhaust valve seat
a
= 29.0 mm
b
= Maximum allowable refacing dimension*
c
= approximately 1.8 mm
z
= Lower edge of cylinder head
a
= 45° Valve seat angle
p
= 30° Upper correction angle
Y = 60° Lower correction angle
*) How to calculate maximum permissible refacing dimension.