SERVICE MANUAL
WATER PUMP, THERMOSTAT & IDLER PULLEYS
Section 9
Parts Replacement
The bearing oil seals, bearings, and water pump seal
assembly must be replaced at disassembly. If the pump
was allowed to operate with a leaking water-pump seal,
the shaft and housing will be damaged and must be
replaced.
REMOVAL
Remove the Water Pump as follows:
1.
Remove the six bolts securing the fan to the
water pump pulley.
a.
Remove the fan.
b.
Remove the pulley from the water pump
hub.
2.
Remove all stud nuts and bolts.
3.
Remove the water pump and gasket from the
front cover.
NOTE: This procedure applies for both press fit and
nut retained hub water pump assemblies.
PROCEDURE FOR WATER PUMPS WITH A PRESS
FIT HUB:
DISASSEMBLY
Disassemble the Water Pump, with a Press Fit Hub,
as follows:
1.
Using a puller, remove the fan hub (1, Fig. 3)
from the water pump shaft. Use a bar (2) to
prevent the hub from turning.
NOTE: A hydraulic puller may be required to remove
the hub from the shaft.
2.
Remove the snap ring (1, Fig. 4) in the bearing
housing (2) as shown.
Figure 3. - Removing the Fan Hub
1. Fan hub
2. Bar
Figure 4. - Bearing Snap Ring Removal
1. Snap ring
2. Bearing housing
CGES-185-3
PRINTED IN UNITED STATES OF AMERICA
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