Mercury 40 FourStroke - Page 221

CYLINDER HEAD
Page 4A-4 90-857046R1 NOVEMBER 2001
“A”
“B”
“C”
“D”
Valve Dimensions
Head Diameter Face Width
Seat Width
Margin Thickness
ROCKER SHAFT
Outside Diameter 0.6288 - 0.6296 in.
(15.971 - 15.991 mm)
ROCKER ARM
Inside Diameter of Bore 0.6299 - 0.6306 in.
(16.000 - 16.018 mm)