volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Valve Spring > < Valve Seat|Specifications|Page 2235
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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

Valve Spring > < Valve Seat|Specifications|Page 2235