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Reworking exhaust valve seat:
a
b
c
d
r 2
Z
α
β
γ
2) Calculating max. permissible reworking dimension
5.3
Valve dimensions
Valve dimensions
Note
Do not rework valves. Only lapping-in is permitted.
Valve dimensions for inlet valves
Dimension
Short inlet valve
∅ a
mm
∅ b
mm
c
mm
α
∠°
Valve dimensions for exhaust valves
Dimension
Short exhaust valve Long exhaust valve
∅ a
mm
∅ b
mm
c
mm
α
∠°
6-cylinder direct-injection engine (3.6 l engine, 4V) - Edition 06.2019
= 29.8 mm diameter
= max. permissible reworking dimension
2)
= 1.2 to 1.7 mm
= max. ∅ 35.0 mm
= radius 2.0 mm
= bottom surface of cylinder head
= 45° valve seat angle
= 30° upper correction angle
= 60° lower correction angle
⇒ page 119
Long inlet valve
33.20
5.98
102.46
44° 40'
30.20
5.97
102.20
44° 40'
CC 2012 ➤ , Passat 2011 ➤ , Passat Variant 2011 ➤
.
33.20
5.98
136.36
44° 40'
30.20
5.97
136.20
44° 40'
5. Inlet and exhaust valves
121
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