Valve Seat
WARNING: This page is about a different variant/trim than selected.
Assemble the valve, then measure the contact width. If the measurement exceeds the specified limit, replace the valve seat.
Standard value
Intake: 1.16 - 1.46 mm (0.046 - 0.058 inch)
Exhaust: 1.35 - 1.65 mm (0.053 - 0.065 inch)
CAUTION:
If the variation in the width exceeds 0.2 mm even if the contact width is within the standard value, replace or correct the valve sheet.