Mercury 45 Jet 50-55 - Pinion Gear, Drive Shaft, and Forward Gear

6B-14 - LOWER UNIT 90-817643R1 DECEMBER 1996
Pinion Gear, Drive Shaft, and Forward
Gear
1. Hold drive shaft using Drive Shaft Holding Tool
(91-56775); remove (and discard) pinion nut.
2. Remove drive shaft, pinion gear, bearing and for-
ward gear .
3. Replace pinion gear if it is chipped or worn.
4. Replace bearing and race if either are rusted or
damaged; or if bearing does not roll freely. To re-
move race, refer to “Lower Drive Shaft Bearing
Race,” following.
5. Replace forward gear if gear teeth or clutch teeth
are chipped or worn.
19175
f
b
d
e
c
a
a - Drive Shaft Holding Tool (91-817070)
b - Pinion Nut
c - Drive Shaft
d - Pinion Gear
e - Bearing
f - Forward Gear
6. Replace bearing if it is rusted or does not roll free-
ly; use a punch and hammer to remove bearing.
19203
a
a - Bearing
7. Replace forward gear bearing and race if either
are rusted or damaged; or if bearing does not roll
freely. Remove bearing from gear
using Universal Puller Plate (91-37241) and man-
drel. To remove race, refer to “Forward Gear Bear-
ing Race,” following.
51119
c
b
a
a - Forward Gear Bearing
b - Universal Puller Plate (91-37241)
c - Mandrel