Mercury 40 Service Manual page 556

BIGFOOT GEAR HOUSING
4. Rotate driveshaft 5 to 10 revolutions. This should properly seat forward gear tapered
roller bearing.
5. Install components as shown.
a -
b -
c -
d -
e -
6. Position Dial Indicator on appropriate line (from chart) marked on Backlash Indicator
Tool.
MODEL
40/50 Bigfoot
(4-Stroke)
60 Seapro/60 Mara-
thon/60 Bigfoot
75-thru-90
(3 Cylinder)
100/115/125
(4 Cylinder)
Page 6B-50
e
d
c
a
b
Threaded Rod (Obtain Locally)
Washers
Nuts
Dial Indicator Adaptor Kit (91-83155)
Dial Indicator (91-58222A1)
f - Backlash Indicator Tool
BACKLASH INDICATOR
TOOL
91-78473
91-78473
91-78473
91-19660--1
f
c
ALIGN POINTER OF DIAL INDICATOR
WITH MARK
51117
4
4
4
1
90-828631R3 MARCH 1999