4. Temporarily install the water intake housing in order to check for impeller
clearance. The clearance between the impeller and liner should be
0.8 mm (0.03 in.). Shim washers can be transferred to either side of the
impeller to raise or lower the impeller to the correct clearance setting. The
water intake housing can be shifted sideways a small amount in order to
center the liner.
a -
Shims
b -
Clearance between
impeller edge and liner
5. After setting the impeller height, tighten the impeller nut snug with a
wrench. Secure impeller nut by bending tabs against the flats on the
impeller nut.
a -
Tabs
b -
Impeller nut
NOTE: If the outboard is used in saltwater, apply Extreme Grease around the
entire mounting flange on the water intake housing and also to the threads on
the six mounting bolts.
Tube Ref
No.
Description
Where Used
Part No.
Extreme Grease
Water intake housing mounting flange
and mounting bolts
8M0071842
a
b
29080
b
a
29082
MAINTENANCE
58
eng