Mercury 25 EFI Service Manual page 449

Description
Gearcase retaining screws
Nut
Tube Ref No.
2-4-C with PTFE
95
NOTE: On long shaft models, thread the shift shaft coupler down (clockwise) on the lower shift shaft until the coupler
stops. Turn the coupler up (counterclockwise) five turns from a lightly seated position (approximately 5.8 mm [0.230 in.]
from the start of the taper on the lower shift). Adjust the coupler up or down slightly to align the shift shaft coupler with the
upper shift shaft.
a
NOTE: On short shaft models, thread the shift shaft coupler down (clockwise) on the lower shift shaft until the coupler
stops. Turn the coupler up (counterclockwise) two and one half turns from a lightly seated position (approximately 3.7 mm
[0.15 in.] from the start of the taper on the lower shift). Adjust the coupler up or down slightly to align the shift shaft coupler
with the upper shift shaft.
a
NOTE: On tiller handle models, the reverse lock link must be pushed up to prevent any tension on the upper shift shaft
while adjusting the shift shaft coupler to align the upper shift shaft with the lower shift shaft.
90-8M0105568 eng MARCH 2016
Description Where Used
Driveshaft splines
a - Coupler lightly seated
b - Coupler five threads up 5.8 mm [0.230 in.]
b
22648
a - Coupler lightly seated
b - Coupler three threads up 3.7 mm (0.15 in.)
b
22649
a
d
c
© 2016 Mercury Marine
Gear Housing
Nm lb. in.
19 168
19 168
92-802859A 1
a - Reverse lock link
(push up)
b - Upper shift shaft
c - Lower shift shaft
d - Shift shaft coupler
b
22535
lb. ft.
Part No.
Page 6A-43