Mercury 40 Service Manual page 534

BIGFOOT GEAR HOUSING
4. Remove shift cam from housing.
5. Replace shift cam if worn.
60 Bigfoot Shown
a -
NOTE: If shift shaft splines are rough, shift shaft seal lips will be cut during removal/
installation.
6. Remove shift shaft bushing and clip from shift shaft.
7. Replace shift shaft if splines are worn or shaft is twisted.
8. Remove (and discard) O-ring.
a -
b -
c -
d -
e -
9. Remove (and discard) seal.
a -
Page 6B-28
a
Shift Cam
d c
Bushing
Clip
Shift Shaft
Splines
O-ring
a
Seal
51117
a
e
d
b
53928
53929
90-828631R3 MARCH 1999