Service Manual

4.8
COOLING SYSTEM
Water Pump Mechanical Seal Replacement (Cont.)
8. Protect water pump cover gasket surface and turn cover
over. Drive mechanical seal out from stator side of cover.
9. Clean housing thoroughly.
If pump shaft assembly (shaft, drive coupler hub, and bearing(
is in good condition, proceed to the next step. If any of these
parts require replacement, refer to the “Water Pump Coupler
Shaft & Bearing Replacement” procedure.
10. Press pump shaft / bearing assembly into housing until
firmly seated.
11. Turn cover over and drive new mechanical seal squarely
into housing using seal installer.
12. Install impeller. Torque bolt to 10 lb-ft. (13.5 Nm)
13. Rotate impeller and check for smooth rotation.
Water Pump Shaft & Bearing Replacement
1. Press new shaft / bearing assembly from kit into cover
from stator side as shown, using the recessed end of
Bearing and Coupler Press Tool PA-49378.
2. Press until bearing is fully seated in cover.
PA-44995-A
PA-49378