Evinrude 4906B 4HP 1969 Owner's Manual page 268

Lower unit with propeller
work.
The seal may be replaced by first remov-
ing the two screws securing the cap in place
and then tapping on the cap with a soft-
headed mallet to jar it loose.
then removed, the seal removed and replac-
ed, and the cap installed and secured.
LOWER UNIT REMOVAL
ADVICE
If the only work to be performed
service of the water
CAREFUL to prevent
being pulled up and free of the pinion gear
in the lower unit.
unit by the driveshaft.
be released from the pinion, the lower unit
MUST be disassembled
gear and driveshaft,
installed.
to
in place prior service
The cap is
pump, be extremely
the driveshaft from
NEVER carry the lower
If the shaft should
to align the pinion
then the driveshaft
1- Disconnect
the plug. Remove the retaining bolts secur-
ing the lower unit to the exhaust housing.
CAREFULLY
prevent damage
remove the lower unit.
WATER PUMP
2- Remove the screws securing the wa-
ter pump to the lower unit housing.
very possible corrosion will cause the screw
heads to break-off
is move them is made.
use a chisel and break-a-way
pump housing from the lower unit.
CISE CARE
housing.
3- After the screws have been removed,
slide the water pump, impeller, the impeller
key, and the lower water pump plate upward
and free of the dr iveshaf
If the only work to be performed
service of the water pump, proceed directly
to Page 8-14, Water Pump Installation.
SERVICE NO SHIFT
the spark plug wire from
pull directly downward,
to the water tube,
REMOVAL
when an attempt
If this should happen,
the water
not to damage the lower unit
t,
8-9
to
and
It is
to re-
EXER-
is