Evinrude 4906B 4HP 1969 Owner's Manual page 291

8-32 LOWER UNIT
18- If the unit being serviced,
splined-type driveshaft,
into the lower unit, and then rotate
shaft very slowly. When the splines of the
driveshaft index with the pinion gear, the
shaft will drop slightly.
pump pin or key.
19- Slide the water
driveshaft and into place
water pump base plate with the pump pin or
key indexed in the impeller.
inside surface of the water pump with light-
weight oil.
20- Lower the water pump housing down
the driveshaft and over the impeller.
tate the driveshaft
ter pump housing is lowered
impeller blades to assume their natural and
proper position inside the housing. Continue
to rotate the drives haft and work the water
pump housing downward until it is seated on
the lower unit upper housing.
uses the
slide the driveshaft
the
Install the water
pump down the
on top of the
Lubricate
Ro-
CLOCKWISE as the wa-
to allow the
21- ALWAYS
CLOCKWISE while the screws are tightened
to prevent damaging the impeller vanes.
the impeller
could damage or cut the end of the vanes as
the screws are brought up tight.
tion allows them to spring back in a natural
position.
22- Place a NEW grommet into the wat-
er pump housing for the water pickup.
new water pump was installed, this seal will
already be in place. Install a NEW O-ring on
the top of the drives haft.
the
rotate the driveshaft
is not rotated, the
The rota-
O-RING
If
housing
If a