Chevrolet 1977 10 Series, Repair Manual, Page: 32 / 468

1B-26
OVERHAUL MANUAL
Fig. 7 5--I nstaI ling Seal Se at " 0 " Ring
4. Install shaft seal protector J-22974 over the end of
compressor shaft and slide shaft seal onto compressor shaft.
Slowly turn the tool clockwise while applying light pressure
until seal engages the flats of compressor shaft and can be
seated into place. R otate tool J-9392 counterclockwise to
disengage from seal tabs and remove tool.
5. A ttach ceramic seal seat to the seal seat remover and
installer J-23128 and dip ceramic seat in clean 525 viscosity
oil to coat seal face and outer surface. Carefully install seat
over com pressor shaft and seal protector J-22974 and push
seat into place with a rotary motion. Remove tools J-23128
and J-22974.
6. Install new seal seat retainer ring with snap ring
pliers J-5403.
7. Leak test compressor as described under "Leak
Testing the Compressor" and correct any leaks found.
8. Reinstall clutch plate and hub assembly as described
under "Com pressor Clutch Plate and H ub Assembly".
COMPRESSOR CLUTCH ROTOR & BEARING
ASSEMBLY, CLUTCH COIL AND PULLEY RIM
Compressor Clutch Rotor & Bearing
Assembly Removal
1. Remove the clutch plate and hub assembly as
described under "Com pressor Clutch Plate and Hub
Assembly".
2. Remove rotor and bearing assembly retaining ring
using snap ring pliers J-6083 (Fig. 76). M ark the location
of clutch coil terminals. If clutch rotor a n d /o r rotor bearing
only are to be replaced, bend the lockwashers away from
pulley rim m ounting screws (Fig. 77) and remove the six
m ounting screws and special lockwashers before proceeding
with Step 3. D iscard special lockwashers.
3. Install rotor and bearing puller guide J-25031-1 over
the end of com pressor shaft and seat on the front head of
compressor (Fig. 77).
4. Install rotor and bearing puller J-25031-2 down into
Fig. 7 6 - R e m o v i n g Be a rin g R e ta in in g Ring
rotor until the puller arms engage the recessed edge of rotor
hub. Hold puller and arm s in place and tighten puller screw
against puller guide to remove clutch rotor and assembly
parts (Fig. 78). If pulley rim m ounting screws and washers
were removed in Step 2, only clutch rotor and bearing
assembly will be removed for replacement.
The clutch coil and housing assembly is pressed onto
front head of com pressor with an interference fit and will
not be removed unless pulley rim m ounting screws are left
securely in place and pulley rim pulls coil and housing
assembly off with total clutch rotor and pulley rim assembly
(Fig. 80).
Fig. 7 7 —1 nstaIIing Rotor and Bearing Puller Guide
CLUTCH ROTOR
BEARING
RETAINING RING
LOCKING WASHER
J-25031-1
SCREW