Mercury 75 Service Manual page 248

Remove thermostat housing and components.
b
a
d
a - Bolts
b - Thermostat Cover
c - Thermostat
d - Poppet Valve
Remove cylinder block cover.
NOTE: There are "pry-slots" on casting as shown by
screwdriver positions.
Remove exhaust cover and divider plate.
4-36 - POWERHEAD
c
25907
20039
20029
Remove 3 bolts from crankcase end cap (lower).
a - End Cap Bolts
Remove crankcase bolts, and cover.
Remove crankcase end cap (lower).
Remove oil seal and O-ring seal.
a
20342
a - Oil Seal
b - O-Ring
Some models may have a wear sleeve with an
O-ring seal. See page 4-39.
90-830234R3 DECEMBER 1997
a
20020
20032
b
20341