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Mercury 40 FourStroke - Specifications

Mercury 40 FourStroke
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CYLINDER HEAD
Page 4A-2 90-857046R1 NOVEMBER 2001
Specifications
CAMSHAFT
Camshaft Dimensions
Intake “A”
Exhaust “A”
Intake “B”
Exhaust “B”
Run-out Limit
Camshaft Bearing Diameter “b”
A
B
b
b
b
b
1.214 - 1.222 in. (30.83 - 31.03 mm)
1.214 - 1.222 in. (30.83 - 31.03 mm)
1.020 - 1.028 in. (25.90 - 26.10 mm)
1.020 - 1.028 in. (25.90 - 26.10 mm)
0.0039 in. (0.1 mm)
1.4541 - 1.4549 in.
(36.935 - 36.955 mm)
VALVE SPRING
Free Length “a”
Tilt Limit “b”
Compressed Pressure (Installed)
Intake
Exhaust
Tilt Limit (Intake & Exhaust)
Dir. of Winding (Intake & Exhaust)
a
b
a
b
1.491-1.569 in. (37.85-39.85 mm)
Less than 0.060 in. (1.7 mm)
19.8 - 22.0 lbs. (9.0 - 10.0 kg)
19.8 - 22.0 lbs. (9.0 - 10.0 kg)
0.043 in. (1.1 mm)
Left Hand

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