Driveshaft Inspection - Mercury 25 EFI Service Manual

2. If the bearing is not in serviceable condition, use a Universal Puller Plate and press to remove the bearing from the
driveshaft.
b
a
Universal Puller Plate
3. To install the new bearing, place the bearing onto the driveshaft.
4. Partially thread the old pinion nut onto the driveshaft.
5. Place the driveshaft assembly into a press.
6. Slide the driveshaft through the Pinion Nut Tool so that pressure is applied to the inner race of the bearing during
installation.
7. Apply pressure to the old pinion nut to push the driveshaft through the new bearing until the bearing seats against the
ledge.
d
Pinion Nut Tool
Universal Puller Plate

Driveshaft Inspection

1. Inspect the splines at both ends of the driveshaft for a worn or twisted condition. Replace the driveshaft if either condition
exists.
90-8M0105568 eng MARCH 2016
a - Universal Puller Plate
b - Upper driveshaft bearing
17019
a - Universal Puller Plate
b - Pinion Nut Tool
c - Upper driveshaft bearing
d - Ledge
e
e - Old pinion nut
c
b
a
17020
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Gear Housing
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