Mercury 40 Service Manual page 150

5. Assemble diaphragm, seal, and cover, to pump body, secure with screws and nuts.
NOTE: Seal installs in one direction only.
a -
b -
c -
d -
e -
6. Install a new O-ring onto the pump assembly.
NOTE: Always install a new O-ring.
a -
90-828631R3 MARCH 1999
a
b
c
d
e
f
Screws (4)
Cover
Cover Seal
Diaphragm
Pump Body
f - Nuts (4)
a
O-ring
53620
FUEL PUMP
Page 3A-9