Mercury 90 Service Manual

90-830234R3 DECEMBER 1997 LOWER UNIT - 6A-21
12. Install thrust bearing. Coat thrust bearing with
Quicksilver Gear Lubricant.
a
87
Quicksilver Gear Lubricant (92-19007A24)
87
19168
a - Thrust Bearing
13. Apply gear lubricant to bearing surface of reverse
gear and install reverse gear.
a
b
87
Quicksilver Gear Lubricant (92-19007A24)
87
19202
a - Reverse Gear
b - Bearing Surface
Forward Gear Reassembly
1. Press tapered bearing onto gear (press only on
inner race of bearing).
a
b
51869
87
Quicksilver Gear Lubricant (92-19007A24)
87
a - Mandrel (91-37350)
b - Bearing; Lubricate I.D. with Quicksilver Gear Lubricant
2. Inspect reverse gear end of clutch to determine
the number of jaws. Refer to chart, following, for
tool end selection.
Model
Installation
Tool
End
Stamped
Bearing
Position
3 Jaw Re-
verse
Clutch
91-856875 3 0.155 in.
(3.94mm)
below sur-
face
6 Jaw Re-
verse
Clutch
91-856875 6 Flush with
surface
3 Jaw Reverse Clutch
56783
a
b
c
56783
a - Stamped “3”
b - Numbered end of Needle Bearing
c - 3 Jaw Reverse Clutch

Mercury 90 Specifications

General

Brand	Mercury
Model	90
Category	Outboard Motor
Language	English