Evinrude 4906B 4HP 1969 Owner's Manual page 283

8-24
LOWER UNIT
Badly worn water pump impeller.
should be inspected thoroughly.
replace the impeller each time the lower unit is disas-
sembled for service.
clutch dog and drive gear arrangement
faces are nicked,
rounded, the operator
the shift operation improperly or the con-
trols may not be adjusted correctly.
items MUST be replaced
aged.
Inspect the dog ears on the
forward and reverse gears.
be replaced if they are damaged.
Check the cradle that
diameter of the clutch dog. The sides of the
cradle must be in good condition, free of
any damage or signs of wear.
wear has occurred, the cradle must be re-
placed.
Check the shift lever and the two prongs
that fit inside the cradle.
the prongs are not worn or rounded.
age or wear to the prongs indicates
lever must be replaced.
C aged ball bearing set destroyed
lubrication, vibration, corrosion,
of
the above.
The impeller
The best practice
sur-
chipped, or the edges
may be performing
These
if they are dam-
inside
of the
The gears must
rides on the inside
If damage or
Check to be sure
Dam-
the
to
due lack
metal particles, or all
is to
Badly worn pinion gear from
of
all gears must
damage.
READ AND
The three numbered illustrations
right column on this page clearly show a
lower unit
IN CORRECTL
lliustration No.1
the bushing bearing on the forward gear for
any kind of indication
when the housing was installed
last repair
gearcase head and if there is any indication
of a pin mark, then check the housing for
evidence the pin has been driven into the
housing. Some forward bearing carries have
a lip that indexes with a slot in the lower
unit housing. Check for evidence the lip did
not index properly.
of
Babbitt bearing unfit for further
bearing must not show any signs
a lower unit.
be
carefully inspected
BELIEVE
that has been assembled
Y.
Insepct very
the pin was missed
during the
work. Check the
service.
of
wear.
The teeth
for wear and
in the
closely,
reverse
This type