Chevrolet 1977 10 Series, Repair Manual, Page: 34 / 468

1B-28 OVERHAUL MANUAL
Fig. 8 2 —In s ta ll in g C lu tch Ro to r Be a rin g
Installation
1. Place rotor and hub assembly face down on a clean,
flat and firm surface (Fig. 82).
2. Align new bearing squarely with hub bore and using
pulley and bearing installer J-9481 with Universal Handle
J-8092, drive bearing fully into hub. The tool will apply
force to outer race of bearing.
3. Stake bearing in place with a 45° angle punch (Fig.
80) but do not stake too deep (.045 - .055 inch) and possibly
distort the outer race of bearing. Use new stake locations
120° apart. D o not use old stake locations.
4.
Recommended Method
Press rotor and bearing assembly onto the front head
of the compressor, using R otor and Bearing Assembly
Installer J-25029 (Fig. 83). The Installer will apply force to
the inner race of the rotor bearing when installing the
assembly onto the front head.
A lternate method
Reassemble the rotor and bearing assembly
to the front head of the compressor using Rotor
Bearing Remover and Rotor Assembly Installer J-
2 5 0 2 9 . W ith Installer assembled to the Universal
Handle J-8092 as shown in Fig. 84, force will be
applied to the inner race of the bearing when
Fig. 8 3 —I n s ta ll in g Ro to r and B e a rin g A s se m b ly
installing the assembly on the front head of the
compressor.
5. Install rotor and bearing using Snap Ring Pliers J-
6083.
6. Assemble and fully seat pulley rim to clutch rotor
and bearing assembly as shown in Figure 84, using Loctite
RC-75 or equivalent on screw threads and use new
lockwashers. D o not torque m ounting screws to final torque
limits until pulley rim is checked to be rotating "in line".
7. Tighten pulley rim m ounting screws to a 100 inch
pounds torque and lock screw heads in place as shown in
Figure 83.
8. Assemble clutch plate and hub assembly as described
under "Com pressor Clutch Plate and H ub Assembly".
CLUTCH COIL AND PULLEY RIM
REPLACEMENT
Removal
1. Perform "Com pressor Clutch R otor and Bearing
Assembly Removal" but do not loosen or remove pulley rim
mounting screws until clutch rotor, coil and pulley rim
assembly have been removed from front head in Step 4.
2. Remove pulley rim m ounting screws and slide pulley
rim off rotor and hub assembly. The pulley rim and clutch
coil are replaceable at this point.
S P A C E R -U S E
PIECE OF F L A T
STOCK
ROTOR A N D
B E A R IN G ASM.
I N S T A L L E R
J 25008-1
H O L D IN G
F IX T U R E