General (B5244S; 2002-2004): Specifications: Valves

Fig 1: Identifying Cylinder Head Valve Dimensions

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Valve crown diameter (A)

Inlet........31.00 0.15 mm

Exhaust........27.00 0.15 mm

Valve stem diameter (B)

Inlet (early versions)........6.970 +0/-0.015mm

Inlet (late versions)........5.970 +0/-0.015mm

Valve stem diameter (B1/B2)

Exhaust (early versions)
H1 = 17.4 mm	B1 = 6.963 0.007 mm
H2 = 70.4 mm	B2 = 6.953 0.007 mm
Exhaust (late versions)
H1 = 22.7 mm	B1 = 5.962 0.007 mm
H2 = 65.1mm	B2 = 5.954 0.007 mm

Total valve length (C)

Inlet........102.00 0.07 mm

Exhaust........101.05 0.07 mm

Disc edge height (D)

Inlet and exhaust........1.50 mm

Minimum height after grinding........1.20 mm

Valve angle

Inlet/exhaust........44.5°

Fig 2: Identifying Camshaft Adjustment Special Tool 999 5222

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Valve stem vertical position

Valve stem height........48.4 0.5 mm

Maximum machining of the valve stem........0.5 mm