WATER PUMP, THERMOSTAT & IDLER PULLEYS
CLEANING, INSPECTION & REPAIR
Clean the Water Pump as follows:
Wash all parts thoroughly in a good solvent.
Dry with compressed air.
INSPECTION AND REPAIR
Inspect and Repair the Water Pump as follows:
(Refer to Fig. 8)
After cleaning visually inspect the shaft and
bearing assembly (4) for wear and leakage.
Replace if necessary.
Visually inspect the bearing housing (2) for wear
or damage. Replace if necessary.
Inspect the impeller vanes (1) for erosion,
remove any nicks, burrs or roughness especially
from around the edges. Replace if necessary.
It is recommended that a new hub (7) be used.
A re-used hub may work loose due to material
being removed when pressing it on and off.
When servicing the water pump, ALWAYS
replace the water pump seal (5) and seal seat
and bushing assembly (6).
Bearing and shaft assembly should be replaced.
REASSEMBLY AND INSTALLATION
Reassemble and install the Water Pump with a Press
Fit Hub as follows: (4 and 8 Vane Pumps only)
Support center of bearing housing (4, Fig. 9) with
a sleeve(s) as shown.
Press bearing assembly (3, Fig. 9) until it
bottoms in housing. DO NOT PRESS ON
Figure 9. - Installing Shaft & Bearing
1. Step Plate
4. Bearing Housing
3. Bearing Assembly
PRINTED IN UNITED STATES OF AMERICA