Valve, Intake/Exhaust

Valves

1.Exhaust Valve Illustration:

2.Inlet Valve Illustration:

Valve Dimensions
Dimension A:
Exhaust 4.9575 ± 0.0075 mm
Intake 4.9775 ± 0.0075 mm
Dimension A (Nimonic):
Exhaust 4.9725 ± 0.0075 mm
Intake 4.9775 ± 0.0075 mm
Dimension B:
Exhaust 29.0 ± 0.1 mm
Intake 33.0 ± 0.1 mm
Dimension C:
Exhaust 107.84 mm
Intake 107.30 mm
Dimension D:
Exhaust 1.5 - 2.0 mm
Intake 1.0 - 1.5 mm
Dimension E:
Exhaust 44.50 ± 0.167 degrees
Intake 45.25 ± 0.250 degrees

Valve Dimensions:

Important: The exhaust valves are stellite coated and must therefore not be machined. Grinding with paste only is advised. B235R and B205 R/L have Nimonic valves manufactured of a high-temperature resistant material.