Steering Column (All Series) - Pontiac TRANS AM 1977 Service Manual

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STEERING WHEELS AND COLUMNS
3B4-3
SERVICE PROCEDURES
STEERING COLUMN (ALL SERIES)
NOTE: Once the steering column is removed from the
car, the column is extremely susceptible to damage.
Dropping the column assembly on its end could collapse
the steering shaft or loosen the plastic injections which
maintain column rigidity. Leaning on the column
assembly could cause the jacket to bend or deform. Any
of the above damage could impair the column's collapse
design. It it is necessary to remove the steering wheel,
use standard wheel puller. Under no conditions should
the end of the shaft be hammered upon as hammering
could loosen plastic injections which maintain column
rigidity.
Removal (Figs. 3B4-2 through 3B4-6)
1. Disconnect negative battery cable.
2. Remove clamp bolt from coupling at lower end of
column shaft. (All cars with power steering and
X
Series with
manual steering.)
NOTE: H Series with manual steering has the coupling
clamped on the steering gear worm shaft.
3. Remove flex coupling shield.
4. All except H Series
-
Disconnect shift linkage from
shift tube lever at lower end of steering column.
5. If column is to be replaced or repaired (out of car),
remove steering wheel. Refer to STEERING WHEEL-
Removal.
6. Remove cover and toe-pan attaching screws (Figs.
3B4-2 through 3B4-6).
7. Remove trim cap or lower trim panel from instrument
panel.
8. If equipped with column shift (Automatic) remove
shift indicator needle (cable on X Series and link on A Series)
from shift bowl.
9. Disconnect neutral start, seat belt warning, and back-
up light wiring from switch. Disconnect turn signal wiring
connector.
10. Remove the two nuts "A" and "B" from bracket
assembly, while holding column in position. Lower column
until ignition switch wiring connectors can be disconnected.
NOTE: If spacers were used on bolts "A" and "B",
retain for use when installing steering column.
11. Carefully remove steering column from inside of car.
12. If necessary to remove intermediate shaft, remove
nut and bolt from shaft clamp and remove from steering gear
shaft.
NOTE: Intermediate shaft on
X
Series may telescope as
it does not use plastic injection.
Installation (A, B and G Series)
See CAUTION on Page 3B4-1 of this Section.
1. If intermediate shaft was removed, install on steering
gear shaft, install bolt and nut and torque nut to 35 ft. lbs.
2. Carefully position steering column from inside of car
through cowl and with the aid of a helper proceed as follows:
Helper will guide intermediate shaft coupling onto
column shaft. Install clamp bolt and nut and torque to 55 ft.
lbs.
3. Connect ignition switch, turn signal wiring and
neutral start switch wiring.
4. Raise steering column into position and loosely install
nuts "A" and " B . If spacers were removed, install equal
thickness on each side.
5. Visually check flex-coupling alignment. If incorrect,
it will be necessary to move column assembly.
NOTE: Flex coupling must be straight within 1/16"
without bottoming intermediate shaft coupling.
6. Loosely install screw (No. 1) into lower toe-pan cover.
(Figs. 3B4-2 and 3B4-3).
7. Install screw (No. 3), torque screws (No. 3 and No.
1) to 45 in. lbs.
8. Torque screws (No. 2) to 60 in. lbs. (Figs. 3B4-2 and
3B4-3).
9. Install screw (No. 4) into lower toe-pan cover and
torque to 45 in. lbs. (Fig. 3B4-2).
10. Torque toe-pan cover bolt (No. 5) to 45 in.
11. Install screws (Nos. 6-7-8) torque to 45 in. lbs. (Fig.
3B4-3).
12. Torque nuts "A" and "B" to 25 ft. lbs. (Figs. 3B4-2
and 3B4-3).
13. If equipped with column shift (automatic), install
shift indicator needle.
14. Visually
check flex-coupling alignment and
intermediate shaft coupling for bottoming. If either has
occurred, it will be necessary to loosen toe-pan clamp bolts
(No. 2) and nuts "A" and "B", then lift up and rearward on
column assembly. Torque bolts (Toe-Pan clamp) to 60 in. lbs.
and nuts "A" and "B" to 25 ft. lbs. (Figs. 3B4-2 and 3B4-3).
15. Install cover over inner and outer toe-pan covers.
16. Install trim cap or lower trim panel on instrument
panel.
17. Connect neutral start and back-up light wiring to
switch, if so equipped.
18. If steering wheel was removed, install steering wheel.
Refer to STEERING WHEEL-Installation.
19. Install flex-coupling shield then connect negative
battery cable to battery.
20. Adjust neutral start and back-up lamp switch as
shown on Fig. 3B4-125.
Installation (F and X Series)
See CAUTION on Page 3B4-1 of'this Section.
1. Carefully position steering column from inside of car
through cowl.
2. Connect ignition switch and turn signal switch wiring
connectors.
3. Raise steering column into position (lower portion of
instrument panel) and loosely attach nuts "A" and "B" (Fig.
3B4-5).

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Firebird 1977

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