Chevrolet Chevelle 1977 Repair Manual page 14

1B-8
Fig. 1 8 -R e m o v in g or In sta llin g S h a ft Seal Seat Retaining
Ring
on Seal Installer J-9392 by twisting the tool
w hile pressing the tool down
assembly out (see Fig. 20).
6. Remove the seal seat O-ring from the compressor
neck using O-Ring Remover J-9533 (See Fig. 19).
7. Recheck the shaft and inside of the compressor neck
for dirt or foreign material and be sure these areas are
perfectly clean before installing new parts.
Inspection
SEALS SHOULD NOT BE REUSED. ALW AYS
USE A NEW SEAL
extremely careful that the face of the seal to be
installed is not scratched or damaged in any way
. Make sure that the seal seat and seal are free of lint and
dirt that could damage the seal surface or prevent sealing.
Fig. 19--Removing S h a ft Seal Seat and O-Ring
OVERHAUL MANUAL
clockwise,
. Then lift the seal
KIT ON REBUILD. Be
O-RING
INSTALLER
J-21508
SEAL
INSTALLER
J -9 3 9 2 ^
Fig. 2 0 --Repla cin g Seal and O-Ring
Replace
1. Coat new seal seat O-ring with clean 525 viscosity
refrigerant oil and install in compressor neck,
certain it is installed in bottom groove
Fig. 21). Top groove is for retainer ring. Use O-Ring
Installer J-21508.
2. Coat the O-ring and seal face of the new seal
assembly with clean 525 viscosity refrigerant oil. Carefully
mount the seal assembly to Seal Installer J-9392 by engaging
the tabs of the seal with the tangs of the tool (Fig. 20).
3. Place Seal Protector J-22974 (Fig. 20) over end of
carefully slide the new seal assembly
shaft and
onto the shaft. Gently tw ist the tool CLOCK­
WISE, w hile pushing the seal assembly down the
shaft
until the seal assembly engages the flats on the shaft
and is seated in place. Disengage the tool by pressing
downward and twisting tool counterclockwise.
1/3 2" (APPROX.)
Fig. 2 1--Compressor S h a ft and Seal
SEAL
PROTECTOR
J-22974
making
(Fig. 20 and
S
--------r -----------
STRAIGHT EDGE
WIRE GAGE
.026 SHOULD "GO"
.075 SHOULD "NOT GO'
ABSORBENT SLEEVE
SLEEVE RETAINER
SEAL SEAT
RETAINER RING
SEAL SEAT
O RING
SEAL ASSEMBLY