Buick LeSabre 1965 Service Manual page 830

ACCESSORIES
OPTIONAL HEATER-AIR CONDITIONER SYSTEM 1 1 - 9 7
RUBBER -
MALLET
4
mi
(A
f M
4
1 m
|J|
iff ill
** REAR
CYLINDER
- FRONT
CYLINDER
1
r_
Figure 11-125— Separating Cylinder
Halves
4. Obtain clean J-9402 assembly
parts tray to retain compressor
parts during disassembly.
5. Separate front and rear cyl-
inder halves, using a wood block
or rubber mallet. See Figure
11-125. Rotate swash plate so
that discharge tube does not con-
tact it. A 9/16" open end wrench
may be used on the shaft seal
area of shaft to rotate swash
plate.
6. Remove rear cylinder half
from pistons.
7. Rotate shaft until a piston is
at its highest point. Push up on
shaft and remove one piston as-
sembly at a time. See Figure
11-126. Place parts in parts tray
to keep them separated. See Fig-
ure 11-127.
8. Remove piston rings, balls and
shoe discs. Discard the shoe
discs. Examine piston balls, if
satisfactory for reuse, place in
parts tray with proper end of
m
1
i
aw
FROST
W A R
ft |
REAR. *
!9i
FRONT
i
ftOHT
J
2
•c
33
REAR
m
REAf
.1.
1
(EAR
:P1
:
FRONT HEAR 1 id| & If
J5402
REAR NEEDLE
THRUST BEARING
AND RACES
Figure 11-127-Parts Tray J-9402
piston. The front end of piston
has identifying notch in casting
web. See Figure 11-128.
9. Remove rear needle thrust
bearing and races. Discard all
three pieces.
10. Push on shaft to remove shaft
and swash plate assembly front
cylinder half.
11. Remove front needle thrust
bearing and races. Discard all
three pieces.
12. Remove discharge tube from
cylinder half by twisting it out
with suitable pliers or by holding
on to it with pliers and tapping on
pliers.
13. Examine swash plate surfaces
for excessive scoring or damage.
If satisfactory, reuse. If neces-
sary, replace mainshaft and swash
plate assembly.
14. Wash compressor internal
parts in a tank of clean trichloro-
ethylene, alcohol or similar sol-
vent. Blow dry all parts, using a
source of clean, dry air. If drive
balls show any signs of damage,
replace.
15. Examine the front and rear
cylinder halves and replace if
RECESSED NOTCH
IN FRONT END
OF PISTON
Figure 11-126—Removing Piston
Assembly
Figure 11-128—Piston Assembly
Figure 11-129—Installing Main
Shaft Bearing
cylinder bores are deeply scored
or damaged.
16. Examine the mainshaft bear-
ings. There is one in each cyl-
inder half. If a b e a r i n g is
damaged, remove bearing with a
suitable socket or punch. Install
new bearing with J-9432 so that
lettering on bearing is toward
outside of cylinder half. See Fig-
ure 11-129.
d. Adjusting Compressor
Shaft End Play and Piston
Shoe Disc Clearance
IMPORTANT: The following op-
erations are required when it is
practical to replace an internal
part or parts of the cylinder as-
sembly. If the complete cylinder
assembly is replaced, gauging of
the shaft end play and shoe disc
clearance is not required.
1. Secure four zero thrust races,
three zero shoe discs and two new
thrust bearings.
2. Apply clean petroleum jelly to
a zero thrust race, a new needle
thrust bearing and a second zero
t h r u s t race. A s s e m b l e this
"sandwich" of parts to front end
of compressor mainshaft.
3. Place FRONT half of cylinder
on J-9397 F i x t u r e . I n s e r t
threaded end of shaft (with front
thrust bearing assembly) through
front cylinder half and allow
thrust race assembly to rest on