SERVICE MANUAL
WATER PUMP, THERMOSTAT & IDLER PULLEYS
Section 9
CLEANING, INSPECTION AND REPAIR
CLEANING
Clean the Water Pump as follows:
1.
Wash all parts thoroughly in a good solvent.
2.
Dry with compressed air.
INSPECTION AND REPAIR
Inspect and Repair the Water Pump as follows:
(Refer to Fig. 22)
1.
After cleaning visually inspect the shaft
wear sleeve and bearing spacer for wear
and corrosion. Replace if necessary.
2.
Visually inspect the bearing housing (2) for
wear or damage. Replace if necessary.
Figure 22. - Water Pump Cross Section (Nut Retained
Hub)
1. Impeller
2. Bearing housing
3. Retaining ring
4. Shaft
5. Water pump seal
6. Seal seat and bushing assembly
7. Hub
8. Bearing assembly
3.
Inspect the impeller vanes (1) for erosion,
remove any nicks, burrs, or roughness especially
from around the edges. Replace if necessary.
4.
When servicing the water pump, ALWAYS
replace the water pump seal (5) and seal seat
and bushing assembly (6).
REASSEMBLY AND INSTALLATION
IMPORTANT: A new high temperature grease is now
used in production, service and ReNEWed water
pump assemblies with a nut retained hub. The new
grease (specification EMS B27-5004, Type 1) must be
used when reassembling these water pumps. The
grease specification EMS B27-5004 is met by
Amoco’s Reckon Premium Grease No. 2 Color Red
and may be obtained locally. If a local distributor
cannot be found, contact:
Amoco Oil Company
200 E. Randolph Drive
Chicago, IL 60601
Phone: (312) 856-5111
IMPORTANT: Seals and bearings must be replaced.
Reassemble and Install the Water Pump with Nut
Retained Hub as follows: (Refer to Fig. 23)
1.
Apply a coat of Aviation Permatex #3 to rear
bearing seal bore. See DETAIL "A" Fig. 23.
2.
Pack new rear seal (5, Fig. 23) cavity full of
grease*, lubricate seal lip with grease*.
Press new rear seal into housing so open
end of seal faces towards bearing.
3.
Prepack rear roller bearing inner race
assembly (6) with grease*. Support shaft
(11) at impeller end and press inner race
assembly to bottom on shoulder of shaft.
*Lubricating Grease per EMS B27-5004, Type I - Use
Amoco Rykon Premium Grease No. 2 Color Red.
CGES-185-3
PRINTED IN UNITED STATES OF AMERICA
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