Volkswagen Golf 1999 Service Manual page 175

Valve gear, servicing
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...
Example:
Measured
distance
-
Minimum
dimension
Max. perm.
rework
dimension*
*)
The max. permissible reworking
dimension is shown as dimension
"b" in illustrations for the reworking
of valve seats.
Reworking intake valve seat
a = Diameter 30.6 mm
b = Max. permissible reworking
dimension*
c
= 0.9...1.5 mm
d
= Max. diameter 35.0 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 22 de 49
15-67
10.6 mm
10.2 mm
0.4 mm
12/2/2005