Valve seat

Seat angle IN EX	45deg 45deg
Seat contact width mm (inch) IN EX	1,2 - 1,6 (0.047 - 0,063) 1,2 - 1,6 (0.047 - 0,063)
Seat sinking mm (inch) (Measure valve protruding length) IN standard / maximum EX standard / maximum	36,8 / 37,8 (1,449 - 1,488) 36,8 / 37,8 (1,449 - 1,488)