Mercury 40 Service Manual page 480

Pinion Gear Bearing
1. Inspect bearing for rust, roughness or discoloration from lack of lubricant.
2. If bearing is damaged, bearing and race must be replaced as an assembly.
3. If race appears to have spun in drive shaft bore, gear case housing must be replaced.
a -
b -
Pinion Gear
1. Inspect pinion gear teeth for rust, pits, chipping, excessive wear (teeth are sharp edged)
or broken.
2. If pinion gear teeth are damaged, also inspect forward and reverse gear teeth for dam-
age.
3. Replace gears as required.
Forward Gear
1. Inspect forward gear teeth for rust, pits, chipping, excessive wear (teeth are sharped
edged), or broken teeth.
2. Inspect forward gear clutch jaws for wear. Rounded jaws indicate the following:
90-828631R3 MARCH 1999
Bearing
Race
Improper shift cable adjustment.
Engine idle speed too high.
Shifting too slowly.
a
b
52823
52839
52874
NON-BIGFOOT GEAR HOUSING
Page 6A-25