Mercury 40 Service Manual

POWER TRIM
90-828631R3 MARCH 1999 Page 5B-43
O-Ring and Seal Placement
O-Ring Description O-Ring I.D. O-Ring O.D. O-Ring Width
a Actuator Pin 0.07 in. (1.78 mm) 0.21 in. (5.33 mm) 0.07 in. (1.78 mm)
b Tilt Relief Cartridge 0.239 in. (6.07 mm) 0.379 in. (9.63 mm) 0.07 in. (1.78 mm)
c Tilt Relief Cartridge 0.301 in. (7.65 mm) 0.441 in. (11.20 mm) 0.07 in. (1.78 mm)
d Tilt Relief Plug 0.359 in. (9.12 mm) 0.565 in. (14.35 mm) 0.139 in. (3.53 mm)
e Suction Seat 0.301 in. (7.65 mm) 0.441 in. (11.20 mm) 0.07 in. (1.78 mm)
f Suction Seat Plug 0.487 in. (12.37 mm) 0.693 in. (17.60 mm) 0.103 in. (2.62 mm)
g Spool 0.239 in. (6.07 mm) 0.379 in. (9.63 mm) 0.07 in. (1.78 mm)
h P. O. Check Seat 0.364 in. (9.25 mm) 0.504 in. (12.80 mm) 0.07 in. (1.78 mm)
i P. O. Check Plug 0.489 in. (12.42 mm) 0.629 in. (15.98 mm) 0.07 in. (1.78 mm)
j Pump Ports 0.145 in. (3.68 mm) 0.285 in. (7.24mm) 0.07 in. (1.78 mm)
k Pump Filter O-ring, Pump Filter - Square Cut
l Reservoir/Motor 2.614 in. (66.40 mm) 2.754 in. (70.0 mm) 0.07 in. (1.78 mm)
m Memory Piston 1.037 in. (26.34 mm) 1.457 in. (37.0 mm) 0.21 in. (5.33 mm)
n Piston Bolt 0.364 in. (9.25 mm) 0.504 in. (12.80 mm) 0.07 in. (1.78 mm)
o Shock Piston 1.171 in. (29.74 mm) 1.449 in. (36.80 mm) 0.139 in. (3.53 mm)
p Cylinder Cap 1.364 in. (34.65 mm) 1.50 in. (38.10 mm) 0.07 in. (1.78 mm)
q Wiper Ring
r Cylinder Cap - Inner 0.546 in. (13.87 mm) 0.752 in. (19.10 mm) 0.139 in. (3.53 mm)
s Manual Release Valve 0.239 in. (6.07 mm) 0.379 in. (9.63 mm) 0.07 in. (1.78 mm)
t Manual Release Valve 0.176 in. (4.47 mm) 0.316 in. (8.03 mm) 0.07 in. (1.78 mm)
u Manual Release Valve 0.114 in. (2.90 mm) 0.254 in. (6.45 mm) 0.07 in. (1.78 mm)
v Reservoir Plug 0.426 in. (10.82 mm) 0.566 in. (14.38 mm) 0.07 in. (1.78 mm)
w Check Valve
O.D.
I.D.
Cutaway View of O-ring
Width

Mercury 40 Specifications

General

Horsepower	40 hp
Starting System	Electric
Steering	Remote
Fuel Induction System	EFI (Electronic Fuel Injection)
Shaft Length	20"
Full Throttle RPM Range	6000