Evinrude 4906B 4HP 1969, Owner'S Manual

Page: 282 / 422

Worn clutch dog ears. This clutch dog must be
replaced.
Inspect the impeller side seal surfaces
and the ends of the impeller blades for
cracks, tears, and wear. Check for a glazed
or melted appearance, caused from operat-
ing without sufficient water. If any ques-
tion exists, and as previously stated, install
a new impeller if at all possible.
Clean all parts with solvent and dry
them with compressed air. DISCARD all 0-
rings and gaskets. Inspect and replace the
driveshaft if the splines are worn. Inspect
the gearcase and exhaust housing for dam-
age to the machined surfaces. Remove any
nicks and refurbish the surfaces on a surface
plate. Start with a No. 120 Emery paper
and finish with No. 180.
Check the water intake screen and pas-
sages by removing the bypass cover, if one
is used. Inspect the clutch dog, drive gears,
pinion gear, and thrust washers. Replace
these items if they appear worn. If the
Grommet installed about halfway up the exhaust
housing where the upper and lower water tubes meet.
Deposits
of
foreign material have
a
habit
of
forming in
this area and restricting the flOW of water. Therefore,
this grommet should be removed and the area cleaned.
MANUAL SHIFT 5 HP TO 25 HP
8-23
A new Shift cradle (right) compared with one badly
wom
and unfit for service (left).
Bearing head with
a
new seal and a-ring installed.
Badly worn propeller Shaft. This damage may have
started from an entangled fish line that was not remov-
ed, then aggravated when
water
entered the lower unit.
Distorted tapered bearing unfit for further service.