Mercury 45 Jet 50-55 - Pinion Gear, Driveshaft and Forward Gear; Upper Driveshaft Bearing

LOWER UNIT - 6A-1190-817643R1 DECEMBER 1996
Pinion Gear, Driveshaft and Forward
Gear
1. Hold driveshaft using Driveshaft Holding Tool (a)
(91-817070); remove (and discard) pinion nut (b).
2. Remove driveshaft (c), pinion gear (d), and forward
gear (f).
3. Replace pinion gear (d) if chipped or worn.
4. Replace bearing (e) if rusted or damaged; or does not
roll freely. To remove, refer to “Lower Driveshaft Bear-
ing”, following.
5. Replace forward gear (f) if gear teeth are chipped or
worn.
51043
51263
a
b
c
d
e
f
6. Replace bearing if rusted or does not roll freely after
cleaning in solvent. Remove as shown.
19203
7. Replace forward gear tapered roller bearing (a) and
race if either bearing or race are rusted or damaged;
or if bearing does not roll freely after cleaning in sol-
vent. Remove bearing from gear using Universal Pull-
er Plate (b) (91-37241) and Mandrel (c). To remove
race, refer to “Forward Gear Bearing Race”, following.
a
b
c
51119
Upper Driveshaft Bearing
1. Replace bearing (a) and race if either bearing or race
are rusted or damaged; or if bearing does not roll freely
after cleaning in solvent.
51271
a
To
Remove