Chevrolet 10 series 1973, Overhaul Manual

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A U T O M A T IC T R A N S M IS S IO N 7 A -1 1 3
Fig. 140T -Installing Extension Oil Seal (Typical)
21. Install all but one pump attaching bolts and seals.
Torque to 18 ft. lbs. (See Figure 139T for location
of omitted bolt.)
22. If necessary to install a new front seal, use a non­
hardening sealer on outside of seal body; and using
Tool J-21359, drive seal in place (fig. 138T).
23. Check front unit end play as follows (fig. 139T).
a. Install a 3/8"-16 threaded bolt or a Slide
Hammer Bolt J-9539 into bolt hole in pump.
b. Mount a dial indicator on rod and index
indicator to register with end of turbine shaft.
Read resulting travel or end play which should be .003"-
.024". Selective washer controlling this end play is
located between pump cover and forward clutch housing.
If more or less washer thickness is required to bring end
play within specifications, select proper washer from the
chart below:
NOTE: An oil soaked washer may tend to
discolor. It will be necessary to measure
washer for its actual thickness.
24. Install remaining front pump attaching bolt and
seal. Torque 18 ft. lbs.
REAR EXTENSION ASSEMBLY
Fig. 142T-Location of Check Balls
c. Push turbine shaft rearward
d. Push output shaft forward.
e. Set dial indicator to zero.
f. Pull turbine shaft forward.
Fig. 141T-lnstalling Front Servo Piston, Washer, and
Pin
1. Install new extension housing to case gasket on
extension housing.
2. Attach extension housing to case using attaching
bolts. Torque bolts to 20-25 ft. lbs.
3. If necessary, install a new seal as follows:
a. (All except CM and CL Models) use a non­
hardening sealer on outside of seal body; and
using Tool J-21359, drive seal in place (fig.
MOT).
b. (Model CM and CL) use a non-hardening sealer
on outside of seal body; and using Tool J-21464
(CM) or J-24057 (CL), drive seal in place (fig.
MOT).
Installation of Check Balls, Control Valve
Spacer Plate and
Gasket, Detent Solenoid, Front Servo
Assembly, and Electrical Connector
1. Install two control valve assembly attaching bolts
with heads cut off as guide pins as shown in figure
15 IT.
SERVO SPRING
RETAINER
SERVO PISTON
RETAINER RING
SERVO PIN
SERVO PISTON
SPRING
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OVERHAUL MANUAL