Valve Seat: Specifications
Valve seats
Upper reduction angle (A)
Inlet 20°
Exhaust 15°
Matching surface angle (B)
Inlet and exhaust 45°
Lower reduction angle (C)
Inlet and exhaust 60°
Valve seat, width (a)
Inlet 1.4 - 1.8 mm
Exhaust 1.8 2.2 mm
Valve seats
Upper reduction angle (A)
Inlet 20°
Exhaust 15°
Matching surface angle (B)
Inlet and exhaust 45°
Lower reduction angle (C)
Inlet and exhaust 60°
Valve seat, width (a)
Inlet 1.4 - 1.8 mm
Exhaust 1.8 2.2 mm