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Mercury 45 Service Manual

Mercury 45
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CYLINDER BLOCK/CRANKCASE
Page 4B-2990-828631R3 MARCH 1999
Selecting New Connecting Rod Bearings
1. Locate the connecting rod bearing code letter that is scribed on the side of the connect-
ing rod.
2. Refer to the following reference chart to select the correct connecting rod bearings.
3. Use the color coded connecting rod bearings that match the connecting rod bearing
code letter.
Connecting Rod
Bearing Code Letter
Connecting Rod
Bearing Color Code
A Blue
B Black
C Brown
53816
A
B
C
a
b
a-Connecting Rod Bearing Code Letters
b-Connecting Rod Bearing Identification Color Location
Installing Connecting Rod Bearings
IMPORTANT: Do not interchange used connecting rod bearings. Reinstall bearings
in their original position.
1. Clean all the oil from the bearing surfaces on the connecting rod.
2. Install connecting rod bearings. Make sure the locking lug on each bearing fits into its
notch.
53815
a
b
a-Connecting Rod Bearings
b-Fit the Locking Lugs into the Notches

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Mercury 45 Specifications

General IconGeneral
Horsepower45 HP
Cylinders3
StartingElectric
Full Throttle RPM Range5000-6000 RPM
SteeringRemote
ExhaustThrough Prop
Shaft Length20 in

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