Mariner Mercury 105/140 JET, Service Manual

Page: 644 / 797

90-824052R3 JUNE 2002 LOWER UNIT - 6C-27
5. Measure distance (a) and increase that distance
by 1
″
(25.4mm) by turning bottom nut away from
top nut.
a
1 in. (25.4mm)
a
b
51870
a - Adaptor
b - Ledge
6. Turn driveshaft clockwise 2 or more turns to seat
driveshaft bearings.
7. Insert Pinion Gear Locating Tool 91-12349A2
into gear housing until it bottoms-out on bearing
carrier shoulder. Use Disc #1 and Flat #1. Follow
instructions provided with tool.
8. Determine pinion gear depth by inserting a feeler
gauge thru access slot in pinion gear shimming
tool.
9. Clearance between shimming tool and pinion
gear should be 0.025
″
(0.64mm).
10. If clearance is correct, leave Bearing Preload
Tool on driveshaft and proceed to “Determining
Forward Gear Backlash,” following.
11. If clearance is not correct, add (or subtract)
shims at location shown to raise (or lower) pinion
gear. When reinstalling pinion nut, apply Loctite
271 on threads of nut.
c
a
d
c
a
b
24643
a - Pinion Gear Shimming Tool
b - Feeler Gauge
c - Obtain 0.025
″
(0.64mm) Clearance between Shimming
Tool and Pinion Gear
d - Add or Subtract Shim(s) Here
Propeller Shaft
REASSEMBLY
1. Position sliding clutch over clutch splines with
cross pin hole aligned with cross pin slot in
propeller shaft.
2. Insert spring into end of propeller shaft.
3. Insert guide block (stepped end) into front end of
propeller shaft with cross pin hole aligned with
cross pin hole in sliding clutch.
CAM FOLLOWER COMPONENTS
GUIDE BLOCK 3 METAL BALLS CAM FOLLOWER