Mercury 5 SERIES User Manual

CYLINDER BLOCK AND CRANKCASE
90-857138R1 MAY 2000 Page 4B–27
Measuring Inside Diameter of Oil Pan Bearing - Camshaft
Standard Value Out of the Limit
0.5515 in. (14.01 mm) Depends of clearance
Clearance Between the Oil Pan Bearing and Camshaft
Standard Value Out of the Limit
0.0008 - 0.002 in. (0.02 - 0.05 mm) If 0.0028 in. (0.07 mm) or more requires
replacement
Subtract the camshaft diameter from the oil pan diameter.
Inspecting Push Rod
1. Inspect push rod for straightness, replace if bent.
2. Replace push rod if corroded or if tips of rod are worn.
Inspecting Valve Lifter
1. Replace valve lifter if worn or corroded.
a
b
a-Push Rod
b-Valve Lifter

Mercury 5 SERIES Specifications

General

Horsepower	5 hp
Cylinders	1
Starting	Manual
Full Throttle RPM Range	5000-6000
Fuel Induction System	Carburetor
Shaft Length	15"
Recommended Fuel	87 octane