Table of Contents
Advertisement
1 8-66
1977 PONTIAC SERVICE MANUAL
J 24896
'
BEARING
REMOVER
L
/
I
FRONT
Fig. 18-1 25 Removing 1 9 7 7 R-4 Main Bearing
I
Fig. 18-126 Installing 1 9 7 7 R-4 Main Bearing
5. Keep clutch hub from turning with clutch Hub
Holding Tool, J 25030. Remove and discard shaft nut using
J 9399 Thin Wall Socket (Fig. 1B-99).
6. Thread Clutch Plate and Hub Asm. Remover, J 9401,
into hub. Hold body of tool with a wrench and turn center
screw into remover body to remove clutch plate and hub asm.
(Fig. 1B-100).
7. Remove shaft key from groove in compressor shaft.
8. Mark location of clutch coil terminals and remove
rotor and bearing assembly retainer ring using Snap-Ring
Pliers, J 6083 (#24). See Figure 1B-103.
9. Do not remove pulley rim mounting screws and lock
washers. Install Rotor and Bearing Puller Guide, J 25031-1,
over the end of the compressor shaft and seat it on the front
head (Fig. 1B-104).
10. Install Rotor and Bearing Puller, J 25031-2, down
into the rotor until arms engage the recessed edge of the rotor
hub. Hold puller and arms in place and tighten puller screw
against Puller Guide (Fig. 1B-106) to remove rotor and
bearing asm., clutch coil and pulley rim as an assembly. Be
careful not to drop the Puller Guide when removing the
assembly.
11. Pry the shell retaining strap away from the cylinder
and position the strap high enough to clear the cylinder as
the shell is removed (Fig. 1B-127).
3. Assemble the front head to the cylinder using a new
O-ring seal according to procedure for "Front Head"
Replacement.
-
--
-
Fig. 18-1 2 7 Releasing 1 9 7 7 R-4 Shell Retaining Strap
R-4 COMPRESSOR SHELL AND/OR O-
RING SEALS
Remove
1. "Discharge the Refrigerant System" according to
DISCHARING,
EVACUATING AND CHARGING
PROCEDURES FOR C.C.O.T. A/C SYSTEMS.
2. Remove compressor from car according to procedure.
3. Clean exterior of compressor as thoroughly as possible
to prevent dirt from getting into compressor during shell
removal.
4. Attach compressor to J 25008-1 Holding Fixture and
clamp holding fixture in a vise (Fig. 1B-98).
12. Remove Compressor Holding Fixture, J 25008-1,
and reverse fixture with step block protrusions engaging the
compressor shell. Install the medium-length bolts through the
holding fixture and thread them into the compressor cylinder
until the step of the fixture protrusions contact the
compressor shell, finger tight on both sides (Fig. 1B-128).
With compressor at room temperature, check to be sure the
step protrusions do not overlap the cylinder but will pass both
sides.
13. Using a wrench, alternately tighten each bolt
approximately 1/4 turn to push the shell free of the O-rings
on the cylinder.
If one screw appears to require more force to turn than
the other, immediately turn the other screw to bring the screw
Advertisement
Table of Contents
