Evinrude 4906B 4HP 1969 Owner's Manual page 321

8-62 LOWER UNIT
new gear case head should be purchased and
installed. The new head will have a new
bearing, O-ring, and seal installed
assembly.
22- On the upper housing of the lower
unit, use a slide hammer with the adaptor
fingers fitting behind the pinion gear bear-
ing, and remove the bearing from the hous-
ing.
23- After the upper bear ing has been
removed, reach in and remove the washer,
thrust bearing, and another washer.
the different size holes in the two washers.
24- Remove the upper driveshaft
using a special puller
standard seal remover.
25- Remove the upper bearing using spe-
cial tool No. 309916.
GOOD WORDS
In most cases,
remove the upper bearing.
quick checks can be made to determine
condition of the bearing.
driveshaft in the
through the bearing.
with no indication of roughness, the bearing
is usually considered fit for further service.
Another method is to insert a finger into the
as an
Notice
seal
No. 377565 or a
it is not necessary
A couple of
One is to feel the
area where it passes
If the shaft is smooth
center of the bearing and determine
needles roll freely and smoothly.
no evidence
bear ing does not have to be removed and
replaced.
lie.
MORE GOOD WORDS
The forward and reverse gear assemblies
look almost identical.
difference.
to
Reverse
(left) and forward
the
hub assemblies.
bearing arrangement;
bearing.
Reverse (left)
reverse hub has
forward gear is knurled.
of binding or roughness,
In other words, let a sleeping dog
However, there is a
The forward gear uses a babbitt
(right) gear, bearing, and
The reverse gear has
the forward gear has
and forward (right) gear hubs.
a
smooth exterior surface
if the
If there is
the
a
caged needle
a babbitt
The
and the