key CHEVROLET CAMARO 1967 1.G Chassis User Guide

CLUTCH AND TRANSMISSIONS 7-6

L6 ENGINE

V8 ENGINE

Fig.
7 - Lower Linkage Details - Camaro

Fig.
8 - Corvette Lower Linkage Details

THREE-SPEED (SA6INAW FULLY SYNCHRONIZED)

TRANSMISSION

General Description . .

Maintenance and Adjustments

Shift Linkage Adjustment

Shift Control Lever
&
Bracket Assembly

Speedometer Driven Gear ..........
INDEX

Page Page

7-6 Extension Oil Seal Replacement 7-7

7-7 Transmission Side Cover 7-8

7-7 Component Part Replacement 7-8

7-7 Transmission Replacement (exc. Corvette) . 7-8

7-7 Corvette Transmission Replacement 7-9

GENERAL DESCRIPTION

The Saginaw three speed fully synchronized (all forward

gears) transmission incorporates helical drive gears

throughout.

The main drive gear is supported by a ball bearing at

the front end of the transmission case and is piloted at

its front end in an oil impregnated bushing mounted in the

engine crankshaft. The front end of the mainshaft is

piloted in a row of roller bearings set into the hollow end

of the main drive gear and the rear end is carried by a

ball bearing mounted in the front of the extension housing.

The countergear is carried on a single row of rollers at

both ends while thrust is taken on thrust washers located

between the ends of the gear and the thrust bosses in the

case.
Ah anti-rattle plate assembly at the front of the

countergear provides a constant spring tension between the

counter and clutch gears to reduce torsional vibrations.

The reverse idler gear is carried on a bushing finish
bored in place. It rotates on a short idler shaft with a

steel thrust washer tanged into the case against the rear

face. Forward movement is stopped by a snap ring on

the idler shaft.

Gear shifting is manual through shift control rods to

the rearward shift lever of the side cover assembly for

first and reverse gear; and through a cross shaft assem-

bly (Chevrolet models) attached to the forward side cover

lever for second and third gear. All three forward gears

are fully synchronized. The synchronizer assemblies

consist of a clutch hub, clutch sleeve, two clutch key

springs and three energizer clutch keys and are retained

as an assembly on the main shaft by a snap ring.

The transmission may be used as an aid in deceleration

by downshifting in sequence without double-clutching or

any gear clashing. Reverse is not- synchronized, how-

ever, it is a helical gear to insure quiet operation.

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-12

DIAGNOSIS-OVERDRIVE

MECHANICAL

Any one of the following general complaints may be due

to non-standard mechanical conditions in the overdrive

unit:

1.
Does not drive unless locked up manually.

2.
Does not engage, or lock-up does not release.

3.
Engages with a severe jolt, or noise.

4.
Free-wheels at speeds over 30 mph.

These^ troubles may be diagnosed and remedied as de-

scribed in the following paragraphs.

1.
Does not drive unless locked up manually.

a. Occasionally, the unit may not drive the car for-

ward in direct drive, unless locked up by pulling

the dash control. This may be caused by one or

more broken rollers in the roller clutch, the

remedy for which is the replacement of the entire

set of rollers.

b.
This may also be caused by sticking of the roller

retainer upon the cam. This retainer must move

freely to push the rollers into engaging position,

under the pressure of the two actuating springs.

c. Sometimes this is due to slight indentations, worn

in the cam faces by the rollers spinning, remedied

by replacement of the cam.

2.
Does not engage, or lock-up does not release

.. a. Dash control improperly connected—-Unless the

overdrive dash control wire is connected to the

lockup lever on the left side of the overdrive

housing in such a manner as to move the lever

all the way back when the dash control knob is

pushed in, it may hold the shift rail in such a po-

sition as to interlock the pawl against full engage-

ment resulting in a buzzing noise when overdrive

engagement is attempted.

To correctly make this connection, loosen bind-

ing post at lever, pull dash control knob out 1/4",

move lever all the way to the rear, and tighten

binding post.

b.
Transmission and overdrive improperly aligned—

The same symptoms as above may also result

from misalignment, at assembly, of the overdrive

housing to the transmission case, resulting in

binding of the overdrive shift rail, so that the re-

tractor spring cannot move the rail fully forward,

when the dash control knob is pushed in, and the

transmission is not in reverse. Under such con-

ditions, the unit may remain fully locked up.

To test for this, be sure that the transmission

is not in reverse; disconnect the dash control

wire from the lockup lever, and feel the lever for

free forward movement. If the lever can be

moved forward more than 1/4", it indicates that

misalignment probably exists. To correct this,

Jposen the capscrews between the overdrive hous-

ing and transmission case, and tap the adpater

plate and overdrive housing until a position is

found where the rail shifts freely; tighten cap-

screws.

c. Kickdown switch improperly adjusted—The posi-

tion of the kickdown switch should be adjusted,

by means of the two large nuts which clamp the

switch shank, so the switch plunger travels 3/16"
before the throttle lever touches its stop.

Occasionally the large nuts which clamp the

switch through the switch bracket are tightened

sufficiently to bend the switch shank, thus pre-

venting free motion of the switch stem. This may

usually be remedied by loosening the upper of the

two nuts.

d. Improper installation of solenoid—If car cannot

be rolled backward under any circumstances and

there is no relay click when the ignition is turned

on, it probably indicates that the solenoid has

been installed directly, without twisting into the

bayonet lock between solenoid stem and pawl, thus

jamming the pawl permanently into overdrive en-

gagement. If the car will occasionally roll back-

wards, but not always, (and there is no relay click

when the ignition switch is turned on) it may indi-

cate that, upon installation, the bayonet lock was

caught, and the solenoid forcibly twisted into

alignment with the attaching flange, thus shearing

off the internal keying of the solenoid. Under

these circumstances, the end of the solenoid stem

may not catch in the pawl, and upon release of the

solenoid, the pawl will not be withdrawn promptly

from engagement, but simply drift out. If the

solenoid stem end has its two flats exactly facing

the two solenoid flange holes, it will not withdraw

the pawl properly. If the stem can be rotated

when grasped by a pair of pliers, it indicates that

the internal keying has been sheared.

e. Improper positioning of blocker ring—Occasion-

ally, either in assembly at the factory, or in

service operations in the field, the internal parts

of the overdrive unit may have been rotated with

the solenoid pawl removed, causing the blocker

ring to rotate, so that its two lugs are not located

with respect to- the pawl as shown in Figure 12B.

In other words, the solid portion of the blocker

ring may be in alignment with the pawl, which will

prevent fill} engagement of the pawl with the sun

gear control plate/

To test for this condition, remove solenoid

cover, pull dash control knob out, roll car 2 ft.

forward. Push dash control in, turn ignition

switch on. Then ground the "KD" terminal of

relay, and watch movement of center stem of

solenoid. It should not move more than 1/8" when

the solenoid clicks. Then, with the relay terminal

still grounded, shift into low gear, and roll car

forward by hand. Solenoid stem should then move

an additional 3/8", as the pawl engages fully.

These two tests indicate proper blocker action.

Unless both tests are met, the blocker ring is

probably not in the correct position.

3.
Engages with a severe jolt or noise

Insufficient blocker ring friction may cause the ring

to lose its grip on the hub of the sun gear control

plate. Check the fit and tension of the ring as de-

scribed under "Cleaning and Inspection".

4.
Free-wheels at speeds over 30 MPH

If cam roller retainer spring tension is weak the unit

will free wheel at all times. Check spring action as

described under "Cleaning and Inspection".

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-14

SPEED HEAVY DUTY TRANSMISSION

(WARNER MODEL T 16)

INDEX

General Description ......

Maintenance and Adjustments

Shift Linkage Adjustment

Side Cover ........

Removal .........

Disassembly
7-14

7-14

7-14

7-14

7-14

7-14
Assembly 7-14

Installation • 7-15

Other Maintenance
&
Adjustment

Operations See 3-Speed Saginaw Section

Transmission Replacement . . . See 3-Speed Saginaw Section

GENERAL DESCRIPTION

The Borg-Warner heavy duty three speed fully syn-

chronized (all forward gears) transmission incorporates

helical gears throughout specially designed to provide

high torque capacity, and gear teeth proportion to operate

at high speeds with neither excessive heat generation nor

excessive frictional losses. Shafts, bearings, high ca-

pacity clutches and other precision parts are held to

close limits providing proper clearances necessary for

durability during extended heavy usage.

The main drive gear is supported by a heavy duty ball

bearing at the front end of the transmission case and is

piloted at its front end in an oil impregnated bushing

mounted in the engine crankshaft. The front end of the

mainshaft is piloted in a row of roller bearings set into

the hollow end of the main drive gear and the rear end

is carried by a heavy duty ball bearing mounted in the

front of the extension housing.

The countergear is carried on a double row of rollers

at both ends while thrust is taken on thrust washers lo-

cated between the ends of the gear and the thrust bosses

in the case. An anti-rattle plate assembly at the front
of the countergear provides a constant spring tension be-

tween the counter and clutch gears to reduce torsional

vibrations. The reverse idler gear is carried on 25

roller bearings while thrust is taken on thrust washers

located between the ends of the gear and the thrust bosses

of the case.

Gear shifting is manual through shift control rods from

the shifter tube in the mast jacket to the rearward shift

lever of the side cover assembly for first and reverse

gear; and through a cross shaft assembly attached to the

forward side cover lever for second and third gear. All

three forward gears are fully synchronized. The syn-

chronizer assemblies consist of a clutch hub, clutch

sleeve, two clutch key springs and three energizer clutch

keys and are retained as an assembly on the main shaft

by a snap ring. The transmission may be used as an aid

in deceleration by downshifting in sequence without

double-clutching or any gear clashing. Reverse is not

synchronized, however, it is a helical gear to insure

quiet operation.

MAINTENANCE AND ADJUSTMENTS

Refer to similar procedures under the 3-speed Saginaw

Transmission Section for—Column Mounted Shift Linkage

Adjustment, Speedometer Driven Gear and Oil Seal Re-

placement, Extension Oil Seal Replacement and Trans-

mission Replacement. ~~

Camaro and Corvette Floor Shift Linkage Adjustment

(Fig.
lc)

1.
Set Lever (L), (K) in neutral position.

2.
Move Lever Assembly (A) and Levers (C), (D) to

neutral position and insert Locating Gauge (B) into

control Lever Bracket Assembly.

3.,
Install Rod (H) with Retainer (M) on Lever (L).

4.
With two Jam Nuts (G), (E) and Swivel (F) loose on

Rod (H) insert and attach Swivel with Retainer (N)

to Lever (D).

5.
Repeat steps 3 and 4 for Rod (J) and Levers (C
&
K).

6. Remove' Locating Gauge and check shift to insure

proper operation.

SIDE COVER ASSEMBLY

Removal

1.
Drain transmission and disconnect control rod and

cross shaft from side cover levers. *

2.
Remove nine cap screws securing the transmission

side cover assembly to transmission, case and re-

move cover assembly, shifting forks, and gasket.
Disassembly (Fig. 2C) '

1.
Remove shifting forks from shift lever assemblies.

2.
Remove nut and lock washer from each shift lever

shaft.

3.
Remove outer shift levers and lightly tap shift lever

shafts from assembly.

4.
Remove two steel balls, poppet spring, interlock pin

and interlock sleeve from cover.

5.
Remove "O" ring seals from shift lever shafts.

Assembly (Fig. 2C)

1.
Install new "O" ring seals to shift lever shafts.

2.
Install low and reverse shifter shaft and plate as-

sembly to cover.

3.
Place shifter shaft and plate assembly in neutral po-

sition, middle detent, and install interlock sleeve,

ball, poppet spring and interlock pin.

4.
Install remaining poppet ball and then install second

and third shifter shaft and plate assembly.

NOTE: Installation is easiest if shifter shaft

and plate assembly passes over ball in its neu-

tral position.

5.
Check clearance between end of interlock sleeve and

shifter shaft and plate cams when one plate is in

neutral and the other is shifted into gear position.

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH
AND
TRANSMISSIONS
7-20

COMPONENT PARTS REPLACEMENT

3.

4.

5.

6.
TRANSMISSION REPLACEMENT
(EXC.
CORVETTE)

Removal From Vehicle

1.
Remove shift lever trim plate and dust boot.

Remove shift lever assembly.

Raise vehicle
to
desired working height.

Disconnect
the
speedometer cable from speedometer

driven gear fitting.
.
~
. •

Remove propeller shaft, then support engine
at the

oil
pan
rail with
a
jack
or
other suitable support

capable
of
supporting
the
engine when transmission

is removed.

Disconnect shift lever bracket assembly from exten-

sion
and
remove
all 3
transmission shifter levers

from shifter shafts, (leave linkage connected
to

levers)
and
remove bracket assembly levers
and

linkage.

Remove extension mount7 to-crossmember attaching

bolts.

Loosen transmission crossmember
and
move rear-

ward
or
remove.

Remove
the
transmission-to-clutch housing retaining

bolts
and
install two guide pins, J-1126,
in
top holes.

Slide
the
transmission straight back until
the
input

shaft
is
free
of
splines
in the
clutch disc.

Slide
the
transmission rearward
to
allow sufficient

clearance
of
input shaft
and
clutch housing. Then tilt

input shaft
end of
transmission downward and with-
8.

9.

10.

11.
draw transmission from vehicle.

installation
to
Vehicle

1.
Raise transmission
and
rotate
as
necessary-to start

input shaft into clutch disc
and
slide transmission

forward until
it
bottoms against clutch housing.
Re-

move guide pins.

2.
Install
the
transmission-to-clutch housing retaining

bolts.
Torque
all
four retaining bolts
to 50 ft. lbs.

3.
Raise engine
and
position extension mount
to
cross-

member,
and
loosely install
the
retaining bolts.

Tighten crossmember
to
frame retaining bolts.

4.
Remove temporary support from engine, and torque

the extension mount retaining bolts.

5. Install propeller shaft.

6. Install control lever bracket assembly
to
transmis-

sion extension
and
connect shifter levers
to
shifter

shafts.

7. Fill transmission
to
level
of
filler plug hole with

correct lubricant specified
in
Section
0.

8. Lower vehicle and install shift lever assembly, check

shift pattern and adjust linkage
as
required.

9. Install trim plate and dust boot.

CORVETTE TRANSMISSION REPLACEMENT

Refer
to
similar procedure under 3-Speed Corvette

Transmission.

FOUR-SPEED (SAGINAW) TRANSMISSION

INDEX

Page

General Description
7-20

Maintenance
and
Adjustments
. . 7-21

Shift Linkage Adjustment.
. 7-21

Speedometer Driven Gear
and

Oil Seal ................
(See
Muncie 4-Speed)

Side Cover
7-22
Page

Removal
. . , 7-22

Disassembly
. . 7-22

Assembly
. . . 7-22

Installation
. 7-22

Extension
Oil
Seal
(See
Muncie 4-Speed)

Transmission Replacement (See Muncie 4-Speed)

GENERAL DESCRIPTION

The Saginaw four speed fully synchronized
(all
forward

gears) transmission incorporates helical drive gears

throughout.

The main drive gear
is
supported
by a
ball bearing
at

the front
end of the
transmission case and
is
piloted
at its

front
end in an oil
impregnated bushing mounted
in the

engine crankshaft.
The
front
end of the
mainshaft
is

piloted
in a row of
roller bearings
set
into
the
hollow
end

of
the
main drive gear
and the
rear end
is
carried
by a

ball bearing mounted
in the
front
of the
extension housing.

The countergear
is
carried
on a
single
row of
rollers

at both ends while thrust
is
taken on thrust washers
lo-

cated between
the
ends
of the
gear and
the
thrust bosses

in
the
case. Ah anti-rattle plate assembly
at the
front
of

the countergear provides
a
constant spring tension
be-

tween
the
counter
and
clutch gears
to
reduce torsional

vibrations.
The
sliding reverse idler gear
is
carried
on

a bushing finish bored
in
place.
It
rotates
on a
short

idler shaft retained by
a
woodruff
key.

The synchronizer assemblies consist
of a
clutch
hub,

clutch sleeve,
two
clutch
key
springs and three energizer

clutch keys
and are
retained
as an
assembly on
the
main

shaft
by a
snap ring.
A great deal
of
similarity
and
interchangeability
now

exists between
the new 3 and
4-speed Saginaw trans-

missions.

However,
the
synchronizer assembly
at the
front
of the

mainshaft
is
used
for the
third and fourth rather than
the

second
and
third shift.
The
synchronizer assembly
at

the rear
of the
mainshaft
is
used
for the
first and second

rather than
the
first
and
reverse shift. Gear teeth
cut

in
the
first and second synchronizer sleeve (reverse gear)

distinguish
it
from
the
third
and
fourth synchronizer

sleeve.

Starting from
the
front, gears
on the
mainshaft
are

third, second
and
first rather than second, first and
re-

verse.
A
fourth blocker ring
is
used between
the 1-2

synchronizer assembly
and
first gear
on the
four-speed

transmissions.

The cover
on the new
four-speed transmission
is lo-*

cated
on the
left-hand side
of the
case.
It is
similar
to

the three-speed cover with
the
addition
of a
reverse

shifter shaft assembly, detent ball
and
detent spring.

Disassembly
and
assembly procedures
are
covered
in

this section.

CHEVROLET CHASSIS SERVICE MANUAL

STEERING 9-16

new upper shift lever spring into bowl pocket. Be

sure spring is seated in bowl pocket. Install bowl

washer (fig. 30).

12.
Insert the upper bearing housing assembly and the

turn signal switch assembly into the cover, feeding

the signal switch wires through the back of the

cover.

13.
Align the signal switch and bearing housing holes

with the holes in the cover. Install three mounting

screws through the holes.

14.
Slide three springs onto screw ends at rear of cover

and place lockplate in position over screws and

springs. Turn screws three turns into lockplate.

15.
Feed switch wire through the shift lever bowl and

place upper end assembly on top of bowl.

16.
Place the shift lever bowl and signal switch cover

assembly on top of jacket, aligning the tangs on the

I.D. of the lockplate with the slots in the top of the

jacket. Shift tube key should align in bowl keyway as

bowl is pushed ono

17.
Lock upper end assembly into position by pushing

down on the cover assembly and rotating assembly

fully clockwise. Tangs of lock plate must engage

slots in jacket.

18.
Tighten three turn signal switch mounting screws in

a gradual criss-cross sequence to avoid cocking the

lockplate.

19.
Slide wave washer and thrust washer over steering

shaft and against upper bearing housing.

20.
Start "C" retaining ring over steering shaft taper.

Complete installation of. retaining ring using snap

ring installer J-22659 as shown in Figure 28. Be

sure "C" retaining ring is completely seated into

steering shaft groove.

21.
-Place turn signal switch lever in position and secure

with screw. Screw hazard warning knob into position.

22.
Remove column from vise and pull wires flat against

jacket. Snap wire protector into place.

23.
If mesh cover was removed, wrap mesh cover around

jacket and secure with electricians or friction tape.

24.
Slide cancelling cam and upper bearing preload

spring onto end of shaft.

Disassembly—Column Mounted Power glide Lever or

Floor Shift Column (Fig. 32)

NOTE: In this procedure, automatic refers to a

column with a column mounted, Powerglide shift-

ing lever. Floor shift refers to a column taken

from a vehicle with conventional or Powerglide

floor shift controls.

1.
Unsnap and remove wiring protector and wiring clip.

CAUTION: Secure column in bench vise for

service one of two ways shown in Figure 26.

Clamping column in vise in any other manner

will damage the column. If support fixture

J^22573 is not used, frequently check position of

column in vise jaws to insure column is not

working free of jaws.

2.
Clamp column in a bench vise as shown in Figure 26.

3.
Slide upper bearing preload spring and cancelling

cam off end of shaft.

4.
On automatic columns removed from Chevy II or

Camaro, remove screws securing dial retainer to

column and remove retainer and dial (fig. 33). Slide
Fig.
33—Powerglide Dial Indicator Assembly—Chevy II

and Camaro

indicator out of shift bowl and remove indicator. Re-

move cap and bulb from turn signal switch housing.

5.
Remove turn signal lever retaining screw and re-

move lever. Push hazard warning knob in; unscrew

and remove knob.

6. On automatic columns, drive'out shift control lever

retaining pin and remove shift lever.

7.
Remove "C" retaining ring from upper steering

shaft using snap ring remover Tool J-22569 (fig. 28).

8. Slide thrust washer and wave washer off upper steer-

ing shaft (fig. 28).

9. Loosen three turn signal switch mounting screws

until the switch cover can be rotated counterclock-

wise.
It may be necessary to push on top of screws

to loosen the cover assembly. ,

NOTE: Do not remove the three turn signal

switch screws completely unless it is necessary

to replace the turn signal switch, lockplate, or

upper bearing housing and bearing.

10.
Rotate turn signal switch cover counterclockwise

and pull cover off top of jacket (fig. 29).

11.
If necessary, pry upper shift lever spring (fig. 30)

from bowl and discard spring.

12.
Remove shift lever bowl from top of jacket.

13.
If necessary to service components within the signal

switch cover, remove the three signal switch covers,

remove the three signal switch mounting screws

completely from engagement with the lockplate. Use

care to control three springs as screws are removed.

14.
Remove turn signal switch and upper bearing housing

assembly from cover.

15.
Carefully pull steering shaft assembly from bottom

of column.

16.
Remove securing back-up lamp/neutral start switch

to column, if so equipped, and remove switch. Retain

these mounting nuts.

CHEVROLET CHASSIS SERVICE MANUAL

STEERING 9-20

Fig.
40-Removing Pivot Pins Using Pivot Pin Removal Tool J-21854

13.
Pull up on tilt release lever to disengage lock shoes.

Remove bearing housing and hang with signal switch,

if present, until further disassembly. If signal switch

and wires were removed earlier, bearing housing

may be completely removed. Remove tilt release

lever.

14.
Remove steering shaft flange bolt and flange from

lower end of shaft.

15.
Remove retaining ring, washers, sleeve and plunger

assembly and spring from lower end of shaft.

16.
Slide steering shaft out of top end of jacket.

17.
If necessary to disassemble steering shaft, proceed

as follows:

a. Slide bearing and race off top of shaft.

b.
Turn upper shaft slightly from center line of

lower shaft.

c. Using a narrow blade screwdriver, work pre-

load spring out of upper shaft and remove spring

(fig. 41).

d. Turn upper shaft 90° from center line of lower

shaft and remove shaft.
e. Rotate centering spheres and remove spheres and

wave washer from lower shaft.

18.
Remove screws securing the support assembly to the

lockpjate and mast jacket and remove support.

19.
Remove shift tube retaining ring with a screwdriver.

Remove thrust washer (fig. 42).

20.
Remove lower bearing adapter from bottom of shift

tube by depressing plastic fingers, one at a time, and

pulling adapter out.

21.
Remove nuts securing back-up lamp, neutral start

switch to column, if so equipped, and remove switch.

Retain these mounting nuts.

22.
Remove shift tube assembly from bowl using shift

tube remover Tool J- 22551 (fig. 43). Insert the

hooked end of the tool into the notch of the shift tube

below the bowl key. Pilot sleeve into upper end of

shift tube. Force shift tube out of bowl by turning

SHIFT TUB

RETAINING RING

Fig.
41—Removing'Preload Spring from Centering Spheres
Fig. 42—Shift Tube Retaining Ring and Lower Bushing

CHEVROLET CHASSIS SERVICE MANUAL

STEERING 9-22

Fig.
45—Removing Lock Shoe Retaining Pin Using Tool J-22635

with screws, if plate was removed during dis-

assembly.

On automatic columns, press a new shift lever spring

into bowl, if original spring was removed.

Insert the signal switch wire harness and connector

through the bearing housing and bowl. Retain the

housing and bowl together during remaining assem-

bly. (On columns where signal switch connector can

be inserted through bowl, it is not necessary to re-

Fig.
46—Installing Shift Tube Using Shift Tube

Installer Tool J-22549
tain bearing housing and bowl together.)

8. Slide bowl into top of mast jacket.

9. Place wave washer and lockplate into position. Work

lockplate into notches in jacket by tipping lockplate

toward bowl hub under the top edge of the jacket.

10.
If seals were removed from lower end of shift tube,

cement new seals into place.

11.
Carefully install shift tube in lower end of mast

jacket. On automatic columns, align key way in tube

with key in bowl. Complete installation of shift tube

using shift tube installer Tool J-22549 as shown in

Figure 46. Do not hammer or force tube when in-

stalling in jacket.

12.
Pull up on bowl to compress wave washer and install

thrust washer and shift tube retaining ring.

13.
Insert support into jacket by aligning "V" in support

with "V" notch in jacket. Insert mounting screws

through support into lockpiate and tighten screws.

14.
Align fingers of lower bearing adapter with holes in

jacket and pilot adapter over shift tube. Snap adapter

into place.

15.
Install back-up lamp/neutral start switch on column,

if so equipped, using the same mounting nuts re-

moved during disassembly. Install the switch loose-

ly, it is to be adjusted when column is installed in

the vehicle.

16.
Assemble the steering shaft as follows:

a. Clamp the lower portion of the steering shaft in a

vise with the socket facing upward.

b.
Apply front wheel bearing lube to the centering

spheres and the steering shaft sockets. Assemble

the spheres, with the wave washer in between, and

place the spheres in the upper shaft socket.

c. Turn the spheres so the lower shaft may be in-

stalled over the grooves.

NOTE: The locating marking on the end of the .

CHEVROLET CHASSIS SERVICE MANUAL

STEERING 9-23

Fig.
47—I retaliating Spherical Joint Spring

upper shaft should be on the same side as the

flat on the lower shaft.

d. Install the upper shaft with spheres into the lower

shaft.

e. Insert the joint preload spring through the

spheres into the lower shaft. Using the upper

shaft to hold the spring in place, carefully feed

the spring into the upper shaft joint with a narrow

bladed screwdriver (fig. 47).

17.
Slide the race and bearing over the top of steering

shaft and install shaft in shift tube from upper end.

Carefully guide shaft through shift tube, taking care

not to tear or push out foam seal cemented inside

lower end of shift tube.

18.
Install tilt control lever and, holding lock shoes in

disengaged position, assemble bearing housing on the

shaft over the support until pivot pin holes line up.

19.
Secure bearing housing in position by pressing in the

pivot pins.

20.
Place housing in full up position and install tilt

spring, tapered end first. Install tilt spring retainer

using screwdriver in retainer slot.

21.
Install turn signal switch with three mounting

screws. Place short length screw in top position

above lock shoes.

NOTE:
If the steering shaft, adapter, mast

jacket, support or bearing housing has been,

replaced, the component stack-up in the column

will be different. Replace the lower plastic in-

jected tolerance ring and the lower bearing pre-

load spring with the necessary tolerance ring

kit as described below.

22.
Slide kit spring, tolerance ring kit, washers, and

retaining ring on steering shaft from lower end.

Seat retaining ring in steering shaft groove.

23.
Screw tolerance ring kit sections together leaving

enough inner edge exposed for later adjustment as

shown in Figure 35.

24.
Install inner race, inner race seat, and bearing lock-

nut on end of steering shaft, using locknut wrench

ToolJ-22599 (fig. 39).

25.
Remove any remaining looseness from internal col-
umn stack-up by unscrewing inner tolerance kit ring

section; then screw inner ring section back in 1/8 to

1/4 turn (fig. 36).

26.
Tighten bearing locknut installed in Step 24 above

until the torque required to rotate the steering shaft,

with the housing in the mid position, is 23 lb. in.

27.
Touch the outer surface of the tolerance ring kit at

several locations with a hot soldering iron to melt

the threads of the inner and outer sections together.

28.
Check to insure hazard warning switch is pushed in.

Remove tilt release control lever and install turn

signal switch cover using turn signal cover installer

Tool J-21853 (fig. 48). On automatic column, be sure

key in the cover is aligned with keyway in bearing

housing.

29.
Place turn signal control lever in position and se-

cure with mounting screw. Screw tilt release control

lever in. Screw hazard warning knob in.

30.
On automatic columns, place transmission shift con-

trol lever in position and insert lever retaining pin.

31.
On automatic columns to be installed in a Camaro,

insert the bulb and cap into the turn signal switch

housing (fig. 33). Slide pointer into position in bowl.

Install dial and dial retainer with mounting screws

removed during disassembly.

32.
Install steering shaft flange on bottom of shaft and

secure with flange bolt.

33.
Remove column from vise. Pull wires back against

column leaving a small amount of slack. Snap wiring

protector into position. Be sure enough slack re-

mains in wires to allow column head to tilt to full

up position.

34.
If mesh cover was removed, wrap mesh cover around

mesh portion of jacket and secure with friction or

electricians tape.

35.
Slide cancelling cam and cancelling cam spring on

upper end of shaft.

Disassembly—Standard Corvette Column (Fig. 49)

1.
Place column on a suitable work bench.

2.
Remove upper bearing preload spring and cancelling

cam from end of column.

3.
Slide escutcheon clear of wiring protector and re-

move protector.

4.
Remove turn signal lever retaining screw and re-

move lever. Push hazard warning knob in; unscrew

and remove knob.

Fig.
48—Installing Turn Signal Switch Cover Using

Signal Switch Installer Tool J-21853

CHEVROLET CHASSIS SERVICE MANUAL

STEERING
9-26

Fig.
54—Corvette Telescoping Column—Exploded View

1.
Wiring Protector

2.
Screw

3. Screw

4. Turn Signal Switch

5. Upper Bearing

Housing

6. Signal Switch Cover

7. Escutcheon
8

9

10

11

12

13

14
8.
Mast Jacket

9. Bumper

Key

Bumper

Bumper Key Strap

Steering Wheel Nut

Upper Bearing Preload

Spring
15.
Cancelling Cam

16.
Retaining Ring

17.
Thrust Washer

18.
Wave Washer

19.
Retainer

20.
Bearing

21.
Spring

22.
Washer
23. Retaining Ring

24.
Lower Steering

Shaft

25.
Upper Steering

Shaft

26.
Locking
Rod

27.
Wedge

Disassembly—Corvette Telescoping Column (Fig. 54).

1.
Place column on a suitable work bench.,

2.
Remove upper bearing preload spring and cancelling

cam from end of shaft.

3.
Remove turn signal lever retaining screw and re-

move lever. Push hazard warning knob in; unscrew

and remove knob.

4.
Remove upper retaining ring from upper steering

shaft using a screwdriver. Remove thrust washer

and wave washer. -

5. Remove three- screws from the lower bearing

retainer.
6. Carefully slide steering shaft assembly out of lower

end of mast jacket.

7. Remove flange bolt and flange from lower end of

shaft. -

CAUTION: Use caution when removing the low-

er retaining ring in the following step. The lower

bearing washer is under load from the com-

pressed spring and could cause injury when the

lower retaining ring is removed.

8. Carefully remove lower retaining ring as shown in

Figure 55. Remove washer* spring, packing, and

CHEVROLET CHASSIS SERVICE MANUAL

STEERING 9-27

Fig.
55— Removing Lower Bearing Retaining Ring

bearing assembly from lower end of shaft.

9. Push upper steering shaft section into lower section

until spring pin is visible at pin access hole in lower

section. Drive out spring pin.

10.
Remove upper shaft section from lower section. If

necessary, replace locking wedge and locking rod at

this time.

11.
Remove bumper key strap (fig. 56). Remove keys and

bumper assembly.

12.
Remove screws securing bottom of wiring protector

to column.

13.
Slide inner jacket section, switch cover, switch,

upper bearing housing, wiring protector, and es-

cutcheon off top end of jacket.

14.
If necessary, remove three turn signal switch mount-

ing screws and remove switch and upper bearing

housing.

15.
If necessary, remove seals from I.D. of mast jacket.

16.
If necessary, unwrap mesh cover from jacket.

Assembly—Corvette Telescoping Column (Fig. 54)

1.
Apply a thin coating of lithium soap grease to all

friction surfaces.

2.
If seals were removed from I.D. of mast jacket,

cement new seals in positions where old seals were

removed.

3.
Place locking wedge and locking rod into upper shaft

and slide upper shaft into lower shaft.

4.
Align upper and lower shafts and insert spring pin

into access hole.

5. Install bearing, packing, spring, washer, and retain-

ing ring on bottom of steering shaft. Seat the re-

taining ring into the steering shaft groove with a

screwdriver.

6. Carefully slide steering shaft into lower end of mast

jacket.

7. Install bearing retainer over lower end of shaft and

lower end of jacket. Secure retainer with three

screws.

8. Install flange and flange bolt on lower end of steering

shaft.

9. Feed wires of turn signal switch through turn signal

switch cover and escutcheon, and place switch and

upper bearing housing in cover. Secure switch to

cover with three mounting screws.
10.
Place wiring protector inside escutcheon.

11.
Start escutcheon and wiring protector, with signal

switch wires, over end of outer jacket.

12.
Slide inner jacket section into outer jacket section.

13.
Secure switch cover to flange of inner jacket section

by tightening the signal switch mounting screws.

14.
Secure the bottom of the wiring protector to the col-

umn with two screws.

15.
Assemble keys and bumper and place the entire as-

sembly in position in the jacket. Install bumper key

strap.

16.
Slide wave washer, thrust washer, and upper retain-

ing ring into place at top of shaft. Seat retaining ring

in steering shaft groove with a screwdriver.

17.
Place turn signal switch lever in position and secure

with screw. Screw hazard warning knob into position.

18.
If mesh cover was removed, wrap mesh cover around

mesh section of jacket and secure with electricians

or friction tape.

19.
Slide cancelling cam and upper bearing preload

spring over top end of shaft.

Installation

NOTE:
Before placing column in position in

vehicle, refer to figures 19 through 23 and slide

dash panel seals, covers, plates, and clamps

loosely into position on column for later

installation.

1.
Move front seat back as far as possible to provide

Fig.
56—Removing Bumper Key Strap

CHEVROLET CHASSIS SERVICE MANUAL