Installing Gear Housing To Drive Shaft Housing - Mercury 40 Service Manual

Installing Gear Housing to Drive
Shaft Housing
WARNING
Disconnect (and isolate) spark plug leads before
installing gear housing onto drive shaft housing.
1. Position shift lever in NEUTRAL gear position.
2. Tilt engine to full "Up" position. Engage tilt lock le-
ver.
3. Shift gear housing into NEUTRAL. Propeller
shaft will rotate freely in either direction.
IMPORTANT: Liberally apply 2-4-C Marine Lubri-
cant w/Teflon to drive shaft splines.
4. Position drive shaft into drive shaft housing.
Move gear housing upwards in drive shaft hous-
ing while aligning both shift shafts, water tube
seal and drive shaft splines.
NOTE: If the drive shaft splines will not align with the
crankshaft splines, rotate flywheel slightly while
pushing gear housing into drive shaft housing.
5. Install 4 bolts and washers, (two each side).
Torque bolts to 40 lb. ft. (54.2 N·m).
a - Bolt and Washers (2 each side) [Torque Bolt to 40 lb. ft.
(54.2 N·m)]
6A-28 - LOWER UNIT
6. Reconnect shift shaft with coupler nut and jam
NOTE: After reconnecting shift shaft, bottom of jam
nut should be approximately flush with top of spray
plate.
30/40, 40/50, FORCE 40/50
a - Coupler Nut
b - Jam Nut
c - Spray Plate
7. Connect shift shaft by sliding retainer to the right
a
25 (4 STROKE), 45/50 (4 STROKE)
52836
a - Retainer
b - Lower Clip
nut. Tighten jam nut against coupler nut.
c
b
and snapping into upper "locked" position.
a
b
90-852572R1 JANUARY 1998
a
52834
53859