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

6A-18 - LOWER UNIT 90-817643R1 DECEMBER 1996
Upper Driveshaft Bearing Installation
1. Press upper driveshaft bearing (a) onto driveshaft. Lu-
bricate I.D. of bearing with Quicksilver Needle Bearing
Assembly Lubricant before pressing in place.
51268
a
a - Upper Driveshaft Bearing (Lubricate I.D. Before Assembly)
Forward Gear, Pinion Gear, Upper
Driveshaft Bearing Race, Retainer
and Driveshaft Installation
NOTE: If shim(s) were lost or are not reusable (damaged),
start with approximately .015 in. (0.361mm).
Install components in sequence shown.
51285
51263
a
b
c
d
e
g
g
51043
f
a - Forward Gear/Bearing: Apply Quicksilver Gear Lube to Bearing
Rollers Before Installation
b - Pinion Gear
c - Upper Driveshaft Bearing Race and Shim(s)
d - Upper Driveshaft Bearing Retainer [Torque to 75 lb. ft. (101.7 N·m)]
Use Tool (91-43506)
e - Driveshaft
f - Driveshaft Holding Tool (91-817070)
g - Pinion Nut (New) (See Note at “Pinion Gear Depth”, Following.)
Recess in Nut is Installed Toward Pinion Gear (See Inset).