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0101w14b.mkr © 41 Machining the cylinder head Specifications Cylinder head Distance B between the cylinder head face and the valve disc: - Intake, min. dim. 0.75 mm - Exhaust, min. dim. 0.66 mm - Intake, max. dim. 1.8 mm - Exhaust, max. dim. 1.8 mm Intake valve seat Seat angle 20.0°-20.5° Width of contact surface A 1.9 - 2.6 mm Valve seat insert, outer diameter 46.054 - 46.065 mm Valve seat insert position, diameter 46.000 - 46.016 mm Valve seat insert position, depth 11.25 - 11.35 mm Valve seat ring, oversize Outside diameter 46.254 - 46.265 Valve seat insert position, diameter 46.200 - 46.216 Cooling temperature when fitting valve seat insert. approximately -80 ° C Exhaust valve seat Seat angle 45.0°-45.5° Width of contact surface A 1.8 - 2.6 mm Valve seat insert, outer diameter 44.081 - 44.092 mm Valve seat insert position, diameter 44.000 - 44.016 mm Valve seat insert position, depth 11.25 - 11.35 mm Valve seat ring, oversize Outside diameter 44.281 - 44.292 Valve seat insert position, diameter 44.200 - 44.216 Cooling temperature when cooling valve seat insert. approximately -80 ° C Cylinder head |