Mercury 40 Service Manual page 8

SPECIFICATIONS
CRANKSHAFT
CAMSHAFT
VALVE SPRING
CYLINDER HEAD
Page 1A-4
Main Bearing Clearance
Crankshaft Run-out
Camshaft Dimensions
Intake "A"
Exhaust "A"
Intake "B"
Exhaust "B"
Run-out Limit
Free Length "a"
Tilt Limit "b"
b
Compressed Pressure (Installed)
Intake
Exhaust
Tilt Limit (Intake & Exhaust)
Dir. of Winding (Intake & Exhaust)
Warp Limit
* Lines indicate
straight edge
measurement
0.0005 - 0.0017 in. (0.012 - 0.044 mm)
0.0012 in. (0.03 mm)
1.216 - 1.220 in. (30.89 - 30.99 mm)
1.213 - 1.217 in. (30.82 - 30.92 mm)
A
1.022 - 1.025 in. (25.95 - 26.05 mm)
1.022 - 1.025 in. (25.95 - 26.05 mm)
B
0.0039 in. (0.1 mm)
1.491-1.569 in. (37.85-39.85 mm)
Less than 0.060 in. (1.7 mm)
a
19.8 - 22.0 lb (9.0 - 10.0 kg)
19.8 - 22.0 lb (9.0 - 10.0 kg)
0.043 in. (1.1 mm)
0.004 in. (0.1 mm)
Left Hand
90-828631R3 MARCH 1999