Mercury 40 Service Manual page 471

NON-BIGFOOT GEAR HOUSING
2. Remove cover, washer (above impeller), impeller, key and washer (below impeller).
3. Remove cover gasket, base plate and base gasket.
a -
b -
c -
d -
e -
g -
h -
NOTE: Replace impeller if:
Page 6A-16
Cover
Nylon Washer (above impeller)
Impeller
Key
Nylon Washer (below impeller)
f - Cover Gasket
Face Plate
Base Gasket
– Impeller blades are cracked, torn or worn.
– Impeller is glazed or melted
– Rubber portion of impeller is not bonded to impeller hub.
a
b
c
d
e
f
g
h
52692
90-828631R3 MARCH 1999