Mercury 5 SERIES Service Manual page 158

CYLINDER BLOCK AND CRANKCASE
Measuring Camshaft Lobe Height "A" Intake/Exhaust
NOTE: 2000 model year outboards have hp mark located on cam gear as shown below. For
2001 model year, all will have 6 hp camshaft.
Standard Value
4 hp - 0.993 in. (25.24 mm)
5 hp - 1.047 in. (26.59 mm)
6 hp - 1.115 in. (28.33 mm)
Measuring Camshaft Bearing Diameter "B"
Standard Value
0.550 in. (13.98 mm)
CAM ID
4 (1999 & 2000)
5 (1999 & 2000)
6 (2000)
4/5/6 (2001)
Measuring Inside Diameter of Oil Pan Bearing - Crankshaft
Standard Value
0.985 in. (25.01 mm)
Clearance Between the Oil Pan Bearing and Crankshaft
Standard Value
0.0006 - 0.0015 in. (0.015 – 0.040 mm)
Subtract the crankshaft diameter from the oil pan bearing diameter.
Page 4B–26
0.983 in. (24.96 mm) or less requires replacement
1.037 in. (26.33 mm) or less requires replacement
1.105 in. (28.06 mm) or less requires replacement
0.549 in. (13.95 mm) or less requires replacement
4
5
6
6
If 0.002 in. (0.06 mm) or more requires replacement
Out of the Limit
Out of the Limit
Out of the Limit
Depends of clearance
Out of the Limit
90-857138R1 MAY 2000
A
B