Pontiac tempest 1968 Service Manual page 502

7F-1
PAGE
SUBJECT-
TWO SPEED
AUTOMATIC
T R A N S M I S S I O N
CONTENTS OF THIS SECTION
PAGE SUBJECT
Transmission Identification 7F-1
Adjustments-Transmission in Car
Neutralizer Switch 7F-1
Shift Control Linkage . 7F-3
Service Operations- Transmission in Car
Shift Linkage 7F-3
Park Lock Actuator Assembly, Inner
Park Lock and Range Selector Lever . 7F-3
Speedometer Drive Gear, Rear Bearing
Retainer Oil Seal or Bushing 7F-3
Governor 7F-4
Governor Driven Gear 7F-5
Vacuum Modulator , 7F-6
Speedometer Driven Gear and Sleeve . . 7F-7
Downshift Solenoid 7F-10
Valve Body 7F-10
Transmission Removal and Installation . . . 7F-12
Transmission Disassembly
Valve Body, Rear Bearing Retainer,
Speedometer Drive Gear and Low Servo 7F-12
Oil Pump, Forward Clutch and Low Band 7F-13
Planetary Gear Set, Reverse Clutch
and Piston and Lock Mechanism . . . . 7F-13
Inspection and Overhaul of Individual
Components
Transmission Case . . . . . . . . . . . . 7F-16
Park Lock Actuator Assembly, Inner
Park Lock and Range Selector Lever . 7F-17
Reverse Clutch and Piston
Forward Clutch. . .
Planet Carrier
Low Servo Assembly . .
Oil Pump
Converter Leak Test
Converter End Play Check
Transmission Reassembly
Range Selector Lever, Shaft and
Parking Lock Actuator
Reverse Piston and Clutch
Planetary Gear Set
Low Servo, Low Band and Forward
Clutch . .
Determination of Selective Thrust
Washer Thickness . .
Oil Pump
Low Band Adjustment
Speedometer Drive Gear
Rear Bearing Retainer, Governor,
Vacuum Modulator, Speedometer
Driven Gear and Valve Body . . .
Converter
Trouble Diagnosis
Pressure Checks
Torque Specifications
Special Tools . .
TRANSMISSION IDENTIFICATION
The identification data is located on the right side
of the transmission (Fig* 7F-2). The transmission
model, model year and the assembly date code ap­
pear on the low servo cover. Whenever the servo
cover is replaced, it will be necessary to stamp all
of the above information on the new cover. Model
numbers are as follows:
LA L - 6 1 Bbl. - Tempest
L B
L - 6
4 Bbl. - Tempest
LD L - 6 1 BbL, A.Co - Tempest
L F L - 6
1 BbL - Firebird
LG L - 6
4 BbL - Firebird
LH L - 6
1 Bbl. - A.C. - Firebird
MA 350 2 Bbl. - Tempest & Firebird
MB 350 4 Bbl. - Tempest & Firebird
MC 350
2 BbL, A . C . - Tempest & Firebird
The car serial number is stamped on the left side
of all 1968 Tempest and Firebird transmissions
(Fig. 7F-1).
7F-17
7F-17
7F-21
7F-24
7F-24
7F-27
7F-27
7F-27
7F-28
7F-28
7F-30
7F-30
7F-31
7F-32
7F-33
7F-33
7F-33
7F-33
7F-33
7F-37
7F-38
7F-39
It is very important that any communication con­
cerning a transmission contain all information from
the low servo cover and that all transmission parts
returned to Pontiac Motor Division be tagged with
this information.
ADJUSTMENTS WITH TRANSMISSION
IN CAR
NEUTRALIZER SWITCH ADJUSTMENT
Console Shift Controls - (Figs. 7 F - 3 , 7F-4)
Column Shift Controls - (Figs. 7 F - 5 , 7F-6)
If the starter operates in any transmission shift
lever position other than PARK and NEUTRAL, the
starter neutralizer must be adjusted as follows:
1. Insert blade of any adjusting gauge (J 22701
gauge set) into R E S E T slot, exerting sufficient pres­
sure to insure full penetration (approx. 0.4") of the
blade (View A).
2. Slowly move upper gearshift lever to LOW po­
sition and remove the gauge.
3. Insert blade of " O " gauge into ADJUST slot,
move shift lever to PARK position and remove ad­
justing gauge.