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Home >> Audi >> 2020 >> S4 Prestige >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Head, VALVETRAIN [CVKB, DBPA, CWNA, CVLA, DEMA, DHDA, DKUA] >> 15 Cylinder Head, VALVETRAIN >> Intake And Exhaust Valves >> Valve Dimensions

Valve Dimensions

Fig 1: Identifying Valve Dimensions
GWWA15-0326Courtesy of AUDI OF AMERICA, LLC
NOTE:

Intake and exhaust valves must not be reworked. Only lapping is permitted.

Dimension Intake Valve Exhaust Valve
Diameter a mm 33.85 ± 0.10 28.0 ± 0.1
Diameter b mm 5.92 ± 0.02 5.92 ± 0.02
c mm 103.97 101.87
α ∠° 45 45
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