Volkswagen Passat 1995 Official Factory Repair Manual page 358

Cylinder head, disassembling and assembling
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Fig. 4 Valve dimensions
CAUTION!
DO NOT recondition valves by
cutting or grinding; only lapping is
permitted.
Dimension Intake
valve
Head diameter 39.5
a - mm 0.15
Stem diameter 6.92
b - mm
Length c - mm 91.85
45
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15-15
Exhaust
valve
32.9
0.15
6.92
91.15
45
5/12/2004