Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 10Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 10

Model 89.9 Valve Dimensions
Head Diameter Face Width Seat Width

Margin Thickness

VALVE SPRING

Set Length (Valve Closed) Intake Exhaust Compressed Pressure (Installed) Intake Exhaust Tilt Limit (Intake and Exhaust) Direction Of Winding (Intake and Exhaust)

0.960 in(24.4 mm) 0.960 in(24.4 mm) 19.822.0 lbs(9.010.0 kg) 19.822.0 lbs(9.010.0 kg) 0.043 in(1.1 mm) Left Hand

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