Volkswagen Golf 1999 Service Manual page 176

Valve gear, servicing
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...
Reworking exhaust valve seat
a = Diameter 26.7 mm
b = Max. permissible reworking
dimension*
c
= 1.2...1.7 mm
d
= Max. diameter 29.0 mm
r
2
= Radius 2.0 mm
Z
= Lower edge of cylinder head
= 45 valve seat angle
= 30 upper correction angle
= 60 lower correction angle
*)
How to calculate the max.
permissible reworking dimension
Page 15-66 .
Página 23 de 49
15-68
12/2/2005