Pontiac tempest 1968 Service Manual page 49

1A-22
1968 P O N T I A C SERVICE MANUAL
^1 f
THRUST
BEARING
THRUST
BEARING
RACES
I H L
FRONT
-CYLINDER
HALF
F i g . 1A-28 Mainshaft Thrust Bearing installed
13. Place cylinder assembly in J 9397 compress­
ing fixture with front of compressor shaft pointing
down, positioning discharge tube opening between
fixture bolts. This will permit access for the feeler
gauge. Assemble fixture head ring and nut to the
cage, tighten nuts evenly to 25 lb. ft. torque (Fig.
1A-32).
14. Use a leaf-type feeler gauge to check clear­
ance between REAR ball and swash plate for each
piston as follows:
a. Use J 9661 gauge set selecting a suitable
feeler gauge leaf until the result is a 4 to 8 oz.
REAR THRUST
RACES AND BEARING
PISTON
SWASH PLATE
FRONT THRUST
RACES AND
BEARING
• • I
Fig. 1 A - 3 0 Installing Piston with Balls
pull on the scale between ball and swash plate
(Fig. 1A-33). If the pull is just less than 4 ozs.,
add .0005" to the thickness of the feeler stock
used to measure the clearance. If the pull on the
scale reads just over 8 ozs. then subtract .0005"
from the thickness of the feeler stock. Select a
shoe accordingly.
b. Rotate the shaft approximately 120° and make
a second check with feeler gauge between same
ball and plate.
T
Fig. 1A-29 Zero Shoe and Ball at Front of Piston
Fig. 1A-31 Installing Rear Cylinder Half on Front
Cylinder Half