Buick LeSabre 1965 Service Manual page 831

1 1 - 9 8 OPTIONAL HEATER-AIR CONDITIONER SYSTEM
ACCESSORIES
FRONT NEEDLE
THRUST BEARING
& ZERO THRUST
RACES
SHAFT AND
SWASH PLATE
ASSEMBLY
Figure 11-130—Shaft Assembly and
Front Needle Thrust Bearing and
Races in Front Cylinder Half
hub Of
11-130.
cylinder. See F i g u r e
4. Place a zero thrust race, a
new thrust bearing and a second
zero thrust washer on REAR of
compressor mainshaft so it rests
on hub of swash plate.
5. Lightly apply clean petroleum
jelly to ball pockets of each of
three pistons.
6. Place balls in piston pockets.
7. Lightly apply clean petroleum
jelly to cavity of three new zero
shoe discs.
8. Place a zero shoe over each
ball in FRONT end of piston. Do
not place shoes on piston rear
balls.
NOTE: Do not assemble any pis-
ton rings on pistons at this time.
9. Rotate shaft and swash plate
until high point of swash plate is
over piston cylinder bore, which
M i l iii
1
M
[ • p i s T O N DRIVE
MBALL & ZERO
SHOE DISC
r S A T FRONT
• 1 1
PISTON DRIVE
BALL ONLY
AT REAR
u
iBpRONT
/ REAR NEEDLE
' THRUST BEARING
& ZERO THRUST
RACES
ft
•
C YLINDER
mat
Figure 11-131—Installing Piston
Assembly in Cylinder
for Gauging
has been identified as No. 1. In-
sert front end of No. 1 piston
(notched end) in cylinder bore
(toward the front of compressor)
and at same time, place front ball
and shoe and rear ball only over
swash plate.
IMPORTANT: It is necessary to
lift shaft assembly when installing
pistons. Hold front thrust bearing
pack tightly against swash plate
hub while lifting shaft.
10. Repeat this operation for No.
2 and No. 3 pistons. Balls and
shoes must adhere to piston dur-
ing this assembly.
11. Align rear cylinder half cast-
ing with bores, suction passage,
discharge holes, dowel pins, etc.
Tap into place, using a wood block
and mallet. See Figure 11-132.
CHECKING FO
{
I
R SHAFT END PLAY
i
P
1
i
- ^ C H E C K I N G FOR
PISTON PLAY
Figure 11-133-Checking Cylinder
Clearances
12. Place cylinder assembly in
J-9397 Compressing Fixture with
front of compressor shaft point-
ing up, positioning discharge tube
opening between fixture bolts.
This will permit access for the
feeler gauge. Assemble fixture
head ring and nuts to the cage,
tighten nuts evenly to 15 lb. ft.
torque.
13. Use a leaf-type feeler gauge
to check clearance between REAR
ball and swash plate for each
piston.
(a) Use a suitable combination of
feeler gauge leafs until the com-
bination will result in a satisfac-
tory "feel" between ball and
swash plate. See Figures 11-133
and 134.
(b) After a suitable combination
of feeler gauge leaves have been
DISCHARGE
TUBE OPENING
Figure 11-132—Assembling Rear
Cylinder Half
Figure 11-134—Gauging Clearance
Between Rear Drive Ball
and Swashplate