Evinrude 4906B 4HP 1969 Owner's Manual page 300

Using a slide hammer
ings from underneath the
Remove the upper seal using a seal puller.
An alternate method,
available, is to use two screwdrivers
work the seal out of the housing.
CARE not to damage the seal recess as the
seal is being removed.
installed under the seal.
may have caged neddle bearings
Normally, it is NOT necessary
this bearing. However, check the bearing
surface with a finger and if any roughness is
felt, the bearing MUST be replaced.
15- Clean the upper portion of the shift
rod as an aid to pulling it through
bushing and O-ring.
the lower unit housing.
16- The shift rod passes through an 0-
ring and bushing in the lower unit housing.
These two items
entering the lower unit.
Caged ball bearing
model lower units instead
to remove the seals or
vrater
pump housinr;r.
if the puller is not
TAKE
A babbitt bearing is
Late model units
installed.
to remove
the
Pull the shift rod from
prevent water from
A special tapered
on
set installed some newer
of
the babbitt bearing.
MANUAL SHIFT 28 HP TO 40 HP
punch is required
from the lower unit housing.
special punch, and then remove the bushing,
and the O-ring.
CLEANING AND INSPECTING
bear-
Clean all water pump parts with solvent,
and then dry them
Inspect the water pump cover and base for
and cracks and distortion,
overheating.
water pump insert for grooves and/or rough
surfaces.
complete new water pump while the lower
unit is disassembled.
ensure extended
give "peace of mind" to the owner.
old impeller
NEVER install it in reverse to the original
direction of rotation.
will cause premature impeller failure.
to remove the bushing
with compressed
possibly caused from
Inspect the face
If possible, ALWAYS install
A new impeller will
satisfactory service
must be returned
Installation
8-41
Obtain the
air.
plate and
a
and
If the
to service,
in reverse