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Home >> Volvo >> 2003 >> C70 2.3 53, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 101 (Engine - Mechanical & Torque Specifications - 1 Of 2 (Coupe)) >> Specifications (B5234T3; B5254T; 1999) >> Specifications, Mechanical >> Valves

Specifications, Mechanical: Valves

WARNING: This page is about a different car, the 2001 Volvo C70, 2000 Volvo C70, and 1999 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Cylinder Head Valve Dimensions
GLL128012Courtesy of VOLVO CARS OF NORTH AMERICA.
Valve Crown Diameter (A)

Inlet........31.00 0.15 mm
Exhaust........27.00 0.15 mm
Valve Stem Diameter (B)

Inlet........6.693 0.007 mm
Exhaust........6.963 0.007 mm
Total Valve Length (C)

Inlet........104.05 0.20 mm
Exhaust........103.30 0.30 mm
Disc Edge Height (D)

Inlet/exhaust........1.5 mm
Minimum height after grinding........1.2 mm
Mating Surface Angle (E)

Inlet........44.5°
Exhaust........44.5°
Fig 2: Camshaft Adjustment Tool
GLL108970Courtesy of VOLVO CARS OF NORTH AMERICA.
Valve Stem Vertical Position

Valve stem height........48.5 0.4 mm
Maximum machining of the valve stem........0.4 mm