Mariner Mercury 105/140 JET, Service Manual

Page: 642 / 797

90-824052R3 JUNE 2002 LOWER UNIT - 6C-25
Driveshaft and Pinion Gear
REASSEMBLY/INSTALLATION
1. Apply Quicksilver Super Duty Gear Lubricant on
l.D. of driveshaft tapered bearing.
2. Thread a used pinion nut onto end of driveshaft.
Leave approximately 1/16
″
(2mm) of nut threads
exposed. Driveshaft threads MUST NOT extend
beyond nut or thread damage could result while
pressing.
3. Place bearing over driveshaft.
4. Using an old driveshaft bearing inner race or
other suitable mandrel (which applies pressing
force on center bearing race only), press bearing
onto shaft until seated.
5. Remove used pinion nut from driveshaft.
a
b
c
d
e
50064
a - Used Pinion Nut
b - Driveshaft
c - Tapered Bearing
d - Old Bearing Inner Race
e - Universal Puller Plate (91-37241)
6. Install 18 needles into race of driveshaft needle
bearing, using Quicksilver 2-4-C w/Teflon Marine
Lubricant to retain needles.
a
b
a - (18) Needles
b - Bearing Race
7. Place forward gear assembly into forward gear
bearing race.
8. Place pinion gear into gear housing.
9. Insert driveshaft into gear housing.
10. Install pinion nut. Hand tighten pinion nut.
a
c
d
51883
b
a - Driveshaft (Rotate to Engage Splines with Pinion Gear)
b - Forward Gear Assembly
c - Pinion Gear
d - Pinion Nut (Apply Loctite 271 on Threads and Install with
Flat Side Away from Pinion Gear)