Pontiac FIREBIRD 1972 Service Manual page 1039

TURBO HYDRA-MATIC (M-38) TRANSMISSION 7G-1
SECTION 7 G
TURBO HYDRA-MATIC (M-38) TRANSMISSION
CONTENTS OF THIS SECTION
..................................................
Trouble Diagnosis 7 6 - 1
............................................................
Oil Leaks 7G-9
......................................
Case Porosity Repair 7G- 10
............................................
General Description 7G- 10
Power Flow
......................................................
7 6 - 1 1
Functions of Valves and Hydraulic Control
Units
............................................................
7G-16
Neutral . Engine Idling
......................................
7 6 - 19
Drive Range
.
First Gear
....................................
76-22
Drive Range
.
Second Gear
................................
76-22
..................................
Drive Range . Third Gear 76-25
Low Range
.
First Gear
......................................
76-25
Super Range
.
Second Gear
................................
76-28
Drive Range . Detent Downshift
........................
76-28
Reverse . Engine Idling
......................................
7G-30
Periodic Service Recommendations
Towing
..............................................................
76-30
Transmission Fluid
........................................
7G-30
Operation Not Requiring Removal of Transmission
Column Shift Controls
....................................
76-33
Console Shift Controls
....................................
76-33
Neutralizer Switch
..........................................
70-33
Detent Cable Adjustment
................................
76-33
Transmission Fluid
..........................................
76-34
Valve Body Assembly
......................................
76-37
Governor Assembly
........................................
76-37
Manual Shaft, Range Selector Inner Lever
and Parking Linkage Assemblies
................
76-37
Intermediate Clutch Accumulator Piston
Assembly
......................................................
76-38
Vacuum Modulator and Modulator Valve
Assembly
......................................................
76-38
Extension Housing Oil Seal
............................
76-39
Speedometer Driven Gear-Speed Control
Switch Assembly
..........................................
76-39
Removal and Disassembly of Transmission
Transmission Removal
....................................
76-39
Transmission Disassembly
..............................
7G-39
Removal of Converter and Modulator
..........
7G-40
Removal of Extension Housing. Speedo
Drive Gear and Governor
..........................
7G-40
..................
Removal of Valve Body Assembly
7G-41
Removal of Oil Pump and Internal
..................................................
Components 76-43
Overhaul of Major Units
..........................................................
Governor 76-47
......................................................
Valve Body 76-48
..........................................................
Oil Pump 7G-5 1
..................................................
Direct Clutch 76-56
................................................
Forward Clutch 7G-60
..............
Sun Gear and Sun Gear Drive Shell
76-63
....................
Low and Reverse Roller Clutch
76-64
..............................................
Input Ring Gear 76-65
................................................
Output Carrier 76-65
.............................................
Reaction Carrier 76-65
..............
Output Ring Gear and Output Shaft
76-66
..........................................
Transmission Case 76-66
Case Bushing
....................................................
76-69
..........................................
Extension Housing 76-69
..................
Intermediate Overrun Brake Band 76-70
..........................................
Vacuum Modulator 7G-70
Manual and Parking Linkage
..........................
7G-71
..........................................................
Converter 76-72
Transmission Reassembly
Installation of Internal Components and
......................................................
Oil Pump 76-73
Selecting Proper Band Apply Pin
..................
76-77
Installation of Parking Linkage, Valve
........................................
Body and Oil Pan 76-77
Installation of Governor, Speedo Drive
......................
Gear and Extension Housing 76-79
Installation of Modulator and Converter
......
76-79
..........
Installation of Transmission Assembly 7G-80
Specifications
............................
Transmission Identification 7G-80
..............................................................
Torque 7G-80
........................................................
Special Tools 7G-81
TROUBLE DIAGNOSIS
SEQUENCE FOR TURBO HYDRA-MATIC
(M-38) DIAGNOSIS
1
.
Check and coirect oil level
.
2
.
Check detent cable adjustment
.
3
.
Check and correct vacuum line and fittings
.
4
.
Check and correct manual linkage
.