Mercury 40 Service Manual page 39

40-50 HP – Thumb Screw Models
a
a - Thumb Screw
WARNING
Outboard must be fastened to boat transom one
of two ways: 1. permanently fastened to transom
with thumb screws and mounting bolts (pro-
vided), or 2. secured to the transom using the op-
tional outboard mounting kit (P/N 812432A5).
Should the outboard strike an underwater object
or be steered into a sharp turn, failure to fasten
outboard correctly to the boat transom with
mounting bolts or optional mounting kit could re-
sult in outboard ejecting suddenly off boat tran-
som causing serious injury, death, boat damage,
or loss of outboard.
1. Center outboard on the transom.
2. Position outboard so the anti-ventilation plate is
within 1 in. (25.4 mm) of the boat bottom.
0 - 1 in.
(0 - 25.4 mm)
a - Anti-Ventilation Plate
90-852572R1 JANUARY 1998
NOTE: Quicksilver Accessory Outboard Mounting
Kit (P/N 812432A5) allows for quick removal and
installation of outboard. Refer to installation instruc-
tions supplied with the mounting kit before drilling any
holes. Tighten retainer screws into lower mounting
holes when using mounting kit.
a - Accessory Outboard Mounting KIt
b - Retaining Screws
3. Type 1 Bracket – Drill two 1/2 in. (12.7 mm) holes
through a lower set of mounting holes.
4. Type 2 Bracket – Drill two 3/8 in. (9.5 mm) holes
through the lower mounting holes.
5. Fasten outboard with provided mounting hard-
ware shown. Apply RTV Silicon Sealer to shanks
of bolts (not threads).
Type 1 Bracket
e
d
c
RTV Silicone Sealer (92-91601-1)
85
a - 1/2 in.(12.7 mm) Diameter Bolt (2)
b - 3/8 in. (9.5 mm) Diameter Bolt (2)
a
c - Flat Washer (2)
d - Locknut (2)
e - Thumb Screws, Tighten Securely
DO NOT, under any circumstances, allow the
cupped washers on the ends of the thumb
screws to be closer than 1 in. (25.4 mm) from top
of the boat transom, not shims.
a
b
Type 2 Bracket
e
c
d
85
a
WARNING
IMPORTANT INFORMATION - 1D-3
b
85