1967 CHEVROLET CAMARO engine oil

ENGINE-ELECTRICAL 6Y-28

terminals on eoil. On Corvettes equipped with radio,

remove bolts securing ignition shield over distribu-

tor and coil.

2.
Pull high tension wire from center terminal of coil.

3.
Remove the two coil support mounting bolts or loosen

friction clamp screw and remove coil.

4.
Place new coil in position and install attaching bolts

or tighten clamp screw.

5.
Place high tension lead securely in center terminal

of coil and connect ignition switch and distributor

primary leads to terminals on coil. Replace ignition

shield on Corvettes.

6. Start engine and test coil operation.

IGNITION PULSE AMPLIFIER

DISASSEMBLY

To check the amplifier for defective components, pro-

ceed as follows:

1.
Remove the bottom plate from the amplifier.

2.
To aid in reassembly, note the locations of the lead

connections to the panel board.

3.
Remove the three panel board attaching screws, and

lift the assembly from the housing.

4.
To aid in reassembly, note any identifying markings

on the two transistors and their respective locations

on the panel board and heat sink assembly.

5.
Note the insulators between the transistors.and the

heat sink, and the insulators separating the heat sink

from the panel board.

6. Remove the transistor attaching screws, and sepa-

rate the two transistors and heat sink from the panel

board.

7.
Carefully examine the panel board for evidence of

damage.

MOUNTING

SCREW

RESISTOR R5 jgSfe. / DIODE Dl

TRANSISTOR TR2

(UNDERNEATH)

1H L >©V

[So

To
I
/'%**jt\
\
TRANSISTC>R"""

1 X ^^w^ X \ (UNDERNEATH)

9^ESISTORR^^^H|^^^^^H

^B
RESISTOR
R4
^HPH^^H

WM'
RESISTOR
R3
I^B^^^^I^U

N .6 ®

mm

N%|/MOUNTING

• tr^i^w ^\ vjR SCREW

CAPACITOR
Cl\
pNkj^^A^
\
RESISTOR
Rl

MOUNTING ^55S^^ \ CAPACITOR C3

SCREW I RESISTOR R6 CAPACITOR C2

TRANSISTOR TR3
COMPONENT CHECKS (Figs. \7\ and 18i)

With the two transistors separated from the assembly,

an ohmmeter may be used to check the transistors and

components on the panel board for defects. An ohmmeter

having a 1-1/2 volt cell, which is the type usually found

in service stations, is recommended. The low range

scale on the ohmmeter should be used except where

specified otherwise.

A 25 watt soldering gun is recommended, and a 60% tin

40%
lead solder should be used when re-soldering. Avoid

excessive heat which may damage the panel board. Chip

away any epoxy involved, and apply new epoxy which is

commercially available.

In order to check the panel board assembly, it is

necessary to unsolder at the locations indicated in Fig-

ure 18i the two capacitors C2 and C3. In all of the fol-

lowing checks, connect the ohmmeter as shown and then

reverse the ohmmeter leads to obtain two readings. The

amplifier circuitry is shown in Figure 19i.

1.
Transistors TR1 and TR2: Check each transistor by

referring to Figure 20i. If both readings in Step 1

are zero, the transistor is shorted. If both readings

in Step 2 are zero, the transistor is shorted; and if

both readings are infinite, the transistor is open.

Interpret Step 3 the same as Step 2.

2.
Trigger Transistor TR3:
11
both readings in Step 1

are zero, the transistor is shorted. If both readings

in Step 2 are zero, the transistor is shorted; and if

both readings are infinite, the transistor is open.

Interpret Step 3 the same as Step 2.

3.
Diode Dl: 11 both readings are zero, the diode is

shorted; and if both readings are infinite, the diode

is open.

4.
Capacitor Cl: If both readings are zero, the capaci-

tor is shorted.

5.
Capacitors C2 and C3: Connect the ohmmeter across

CHECKING

RESISTOR Rl

UNSOLDER
I
CHECKING TRIGGER

TRANSISTOR TR3
CHECKING

CAPACITOR C

Fig.
171—Pulse Amplifier Panel Board
Fig.
18i—Pulse
Amplifier
Component
Checks

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE-ELECTRICAL 6Y-32

STARTER CIRCUIT

INDEX

Page

General Description 6Y-32

Maintenance and Adjustments . '. . 6Y-32

Resistance Checks 6Y-32

Starting Motor and Solenoid Check 6Y-33
Page

Service Operations 6Y-33

Starter Motor 6Y-33

Removal and Installation 6Y-33

GENERAL DESCRIPTION

The function of the starting system, composed of the

starting motor, solenoid and battery, is to crank the

engine. The battery supplies the electrical energy, the

solenoid completes the circuit to the starting motor, and

the motor then does the actual work of cranking the

engine.

The starting motor (fig. Is) consists primarily of the

drive mechanism, frame, armature, brushes, and field

windings. The starting motor is a pad mounted 12-volt

extruded frame type, having four pole shoes and four
fields,
connected with the armature. The aluminum drive

end housing is extended to enclose the entire shift lever

and plunger mechanism, protecting them from dirt,

splash, and icing. The flange mounted solenoid switch

operates the overrunning clutch drive by means of a

linkage to the shaft lever.

The V-8 wiring harness differs from the in-line engine

in that the ignition lead to the coil from the switch is at-

tached at the coil instead of at the starter solenoid (fig.

2s).

CONTACT

FINGER

PINION

STOP

BRUSH

INSULATED BRUSH HOLDER \ FIELD COIL

BRUSH SPRING ARMATURE

GROUNDED BRUSH HOLDER
OVERRUNNING

CLUTCH

Fig.
Is—Starting Motor Cross Section (Typical)

MAINTENANCE AND ADJUSTMENTS

No periodic lubrication of the starting motor or sole-

noid is required. Since the starting motor and brushes

cannot be inspected without disassembling the unit, no.

service is required on these units between overhaul

periods.

RESISTANCE CHECKS

Although the starting motor cannot be checked against
specifications on the car, a check can be made for. exces-

sive resistance in the starting circuit. Place a volt-

meter across points in the cranking circuit as outlined

below and observe the reading with the starting switch

closed and the motor cranking (distributor primary lead

grounded to prevent engine firing).

1.
From battery positive post To solenoid battery

terminal.

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-4

5.
Install Tool J-5824 to support the clutch assembly

during removal.

NOTE: Look for "X" mark on flywheel and on

clutch cover. If MX" mark is not evident, prick

punch marks on flywheel and clutch cover for

indexing purposes during installation.

6. Loosen the clutch-to-flywheel attaching bolts evenly

1 turn at a time until spring pressure is released,

then remove the bolts, and remove clutch assembly.

Installation to Vehicle

Clean pressure plate and flywheel face. (They should

be free of oil, grease, metal deposits or burned spots).

1.
Position the clutch disc and pressure plate in relar

tive installed position and support them with align-

ment Tool J-5824.

NOTE: The driven disc on the 4 and 6 cylinder

engines is installed with the damfper springs to

the flywheel side; the V-8 is opposite, however,

THE GREASE SLINGER IS ALWAYS ON THE

TRANSMISSION SIDE.

2.
Turn clutch assembly until "X" mark on cover lines

up with "X" mark oh flywheel, then align cover bolt

holes to nearest flywheel holes.

3.
Install a bolt in every hole and tighten down evenly

and gradually until tight (to avoid possible clutch

distortion).

NOTE: Cover loads are as high as 1-1/4 tons.

4.
Remove pilot tool.

5.
Unhook clutch fork and lubricate ball socket and fork

fingers at release bearing end with a high melting

point grease such as graphite and reinstall fork on

ball stud. On Corvette models use Moly Grease.

6. Lubricate the recess on the inside of throwout bear-

ing collar and the throwout fork groove with a light

coat of graphite grease (fig. 4). On Corvette models

use Moly Grease.

7.
Install clutch fork and dust boot into clutch housing

and install throwout bearing to the throwout fork, then

install flywheel housing.

8. Install transmission as outlined in transmission

section.

9. Connect fork push rod and spring.

10.
Adjust shift linkage as outlined in transmission

section.

11.
Perform linkage adjustment for pedal free play and

check clutch release position.

CLUTCH PEDAL

The clutch pedal is the pendant-type hung from a sup-
Fig. 5 - Release Bearing Lubrication and Comparison

port brace common to the brake pedal and must be re-

moved to remove brake pedal. Refer to Section 5 for

brake and clutch pedal service procedure.

CLUTCH CROSS SHAFT (Figs. 6, 7 & 8)

Removal

1.
Remove linkage return and lower linkage springs and

disconnect clutch pedal and fork push rods from re-

spective cross shaft levers.

2.
Loosen outboard ball stud nut and slide stud out of

bracket slot.

3.
Move cross shaft outboard, and as required to clear

inboard ball stud, then merely lift out to remove

from vehicle.

Repairs

The cross shaft has nylon ball stud seats which should

be inspected for wear or damage. Also check condition

of engine bracket ball stud assembly and special anti-

rattle "O" ring. Figures 6, .7
&
8 show component parts

of cross shaft. Replace parts as necessary based on wear

or damage. Lubricate ball studs and seats with graphite

grease before reassembly.

Installation

1.
Reverse removal procedure to install.

2.
Adjust clutch linkage as previously outlined.

CHEVROLET CHASSIS SERVICE MANUAL

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 7-7

MAINTENANCE AND ADJUSTMENTS

CHEVROLET, CHEVELLE, CHEVY II, CAMARO,

SHIFT LINKAGE ADJUSTMENT

In cases where the gearshift linkage has been discon-

nected, it should be adjusted as follows:

1.
Move both transmission shift levers until transmis-

sion is in neutral. Neutral detents in transmission

cover must both be engaged to make this adjustment

correctly. (To check, start engine with clutch dis-

engaged, and release clutch slowly.)

2.
Move selector lever to neutral position. Align first

and reverse tube lever with the second and third

shifter tube lever on the mast jacket. This may be

done by having an assistant hold the mast .jacket shift

levers aligned in neutral position or use a simple

gauge or pin to align these levers in neutral.

3.
Make necessary adjustment to align shift control

rods and transmission levers in neutral position.

Move selector lever through all positions to check ad-

justment and to insure over-travel in all positions.

FLOOR SHIFT LINKAGE ADJUSTMENT

1.
Set Transmission Levers (K) and (L) in neutral de-

tent position.

2.
Move Transmission Control Lever (A) to neutral de-

tent and insert Locating Pin (D) into notch of Lever

and Bracket Assembly.

3.
Install Nut (N) and Clevis (M) on Rod (J) loosely,

attach Rod to Lever (B) and secure with retainer.

4.
With Lever (B) against Locating Pin, adjust Clevis

at Lever (L) until Clevis pin passes freely through

holes and secure with washer and cotter pin. Tighten

Nut (N).

5.
Install Nuts (E) and (G) and Swivel (F) loosely on Rod

(H),
attach Rod to Lever (K) and secure with retainer.

6. With Lever (C) against Locating Pin, attach Swivel to

lever and secure with retainer. iRun Nut (G) against

Swivel, then tighten Nut (E) against Swivel.

7.
Remove Locating Pin and check shifts to insure

proper operation. Readjust clevis and swivel if nec-

essary.

LEVER (A)
LEVER (L) CLEVIS (M)-NUT (N

LEVER (C)

ROD(J).
" - -

LEVER (K) ROD (H)^ NUT '(G) SWIVEL (F) ^NUT (E)
SHIFT CONTROL LEVER AND BRACKET ASSEMBLY

If disassembly of this control lever and bracket assem-

bly is necessary refer to Figure 2A for parts breakdown

and relative positioning for assembly.

SPEEDOMETER DRIVEN GEAR

Disconnect speedometer cable, remove lock plate to ex-

tension bolt and lock washer and remove lock plate. In-

sert screwdriver in lock plate slot in fitting and pry fitting

gear and shaft from extension. Pry "O" ring from groove

in fitting.

Install new "OM ring in groove in fitting. Coat "O" ring

and driven gear shaft with transmission lubricant and in-

sert shaft.

Hold the assembly so slot in fitting is toward lock plate

boss on extension and install in extension. Push fitting

into extension until lock plate can be inserted in groove

and attach to extension.

EXTENSION OIL SEAL REPLACEMENT

.1.
Remove propeller shaft as outlined in Section 4 and

disconnect any necessary items to obtain clearance.

2.
Pry seal out of extension.

3.
Wash counterbore with cleaning solvent and inspect

for damage.

4.
Prelubricate between sealing lips and coat new seal

O.D. with Permatex or equivalent and start straight

in bore in case extension. Using Tool J-5154, tap

seal into counterbore until flange bottoms against

extension.

Fig.
1A- Shift Linkage Adjustment (Typical)
Fig.
2A - Corvette 3 Speed Control Lever and Bracket Assembly

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-3

DETENT CAM

DETENT SPRING

DETENT CAM

2-3 SHIFT

FORK

DETENT CAM

PIVOT PIN

1ST & REV. 1ST& REV.

SHIFTER SHAFT SHIFT FORK

DETENT CAM

RETAINER RING
2-3 SHIFTER SHAFT

Fig. 3A
•*
Transmission Side Cover, Shift Fork and Detent Assembly

5. Reinstall propeller shaft and any items removed to

obtain clearance.

TRANSMISSION SIDE COVER

Removal •

1.
Disconnect control rods from levers; remove 2-3

cross shaft (Chevrolet)

2.
Shift transmission into neutral detent positions before

removing cover.

3.
Remove cover assembly from transmission case

carefully and allow oil to drain.
Disassembly (Fig. 3A)

1.
Remove the outer shifter levers.

2.
Remove both shift forks from shifter shaft assem-

blies.
Remove both shifter shaft assemblies from

cover. "OM ring seals around shifter shaft may now

be pryed out if replacement is required because of

damage.

3.
Remove detent cam spring and pivot retainer "C"

ring. Remove both detent cams.

4.
Replace damaged parts.

Assembly (Fig. 3A)

1.
With,
detent spring tang projecting up over the
2nd
and

3rd shifter shaft cover opening install the first and

reverse detent cam onto the detent cam pivot pin.

With the detent spring tang projecting up over the

first and reverse shifter shaft cover hole install the

2nd an£ 3rd detent cam.

2.
Install detent cam retaining "C" ring to pivot shaft,

and hook spring into detent cam notches.

3.
Install both shifter shaft assemblies in cover being

careful not to damage seals. Install both shift forks

to shifter shaft assemblies^ lifting up on detent cam

to allow forks to fully seat into position.

4.
Install outer shifter levers, flat washers, lock wash-

ers and bolts.

Installation

1.
Shift shifter levers into neutral detent (center) posi-

tion.
Position cover gasket on case.

2.
Carefully position side cover into place making sure'

the shift forks are aligned with their respective

mainshaft clutch sliding sleeves.

3.
Install cover attaching bolts and tighten evenly to

specified torque.

4.
Remove filler plug and add lubricant specified in

Section 0, to level of filler plug hole.

COMPONENT PART REPLACEMENT

TRANSMISSION REPLACEMENT (EXC. CORVETTE)

Removal From Vehicle

1.
Remove propeller shaft assembly.

2.
Disconnect speedometer cable at transmission.

3.
Disconnect shifter rods at transmission levers.

4.
Support engine assembly.

5. Remove transmission to clutch housing bolts.

6. Remove transmission crossmember to mount bolts.

7. Loosen transmission crossmember and move rear-

ward or remove.

8. Slide transmission rearward and remove.

Installation in Vehicle

1.
Raise transmission into position and slide forward

piloting clutch gear retainer into clutch housing.

2.
Install transmission to clutch housing retaining bolts

and lock washers, torque to 50 ft. lbs.

3.
Repositioning transmission crossmember and install

retaining bolts.

4.
Install transmission crossmember to mount bolts.

5. Connect and adjust shift rods at transmission levers

and cordon shaft to 2nd and 3rd lever on Chevrolet

Models. (Fig. 4A)
Fig. 4A - Chevrolet 2-3 Shift Lever Cordon Shaft

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-9

6. Connect speedometer cable.

7. Install propeller shaft assembly.

8. Fill transmission with lubricant specified in Section

O.

CORVETTE TRANSMISSION REPLACEMENT

, 1. Disconnect battery ground cable.

2.
Pisassemble transmission shift control lever by un-

screwing ball from lever, lifting out
"T"
handle re-

turn spring and "T" handle, then remove the anti-

rattle bushings.

3.
Raise front and rear of vehicle.

4.
Insert a block of wood between the top of the dif-

ferential carrier housing and the underbody (to pre-

vent upward travel of the carrier when the carrier

front support is disconnected).

5. Disconnect the differential carrier front supportfrom

its frame bracket, by removing the nut on the under-

side of the biscuit mount.

6. Pry the carrier downward to relieve load while re-

moving the two center mounting bolts from the car-

rier front support. (To pry carrier downward insert

crowfoot end of a pry bar through the opening in the

carrier front support, hooking end of bar over top of

the center mounting bolt pad cast in the underside of

the carrier.)

7. Pivot carrier support downward for access to prop

shaft "U" joint.

8.
.
Disconnect prop shaft front and then rear "U" bolts.

9. Disconnect parking brake cable from ball socket at

idler lever located near center of underbody.

10.
Remove prop shaft by moving shaft forward.

11.
Remove heat deflectors from the right and left ex-

haust pipe.

12.
Remove left bank exhaust pipe.

13.
Remove right bank exhaust pipe and heat riser.

14.
Disassemble the transmission mount, as follows:

a. Remove the two bolts that attach rear mount

cushion to the rear mount bracket.

b.
Support engine under oil pan and raise engine to

remove load from rear mount cushion.
CAUTION: To avoid damage to oil pan, a suit-

able wide base, heavy wood platform should be

placed between the jack pad and the oil pan.

c. Remove the three transmission mount bracket-

to-
crossm ember bolts and remove mount bracket.

d. Remove the two bolts from mount pad to trans-

mission case and remove rubber mount cushion

and exhaust pipe "yoke".

15.
Disconnect transmission linkage by removing the

shift levers at the transmission side cover.

16.
Disconnect speedo cable at transmission extension.

17.
Remove transmission output shaft slip yoke.

NOTE:
The yoke is removed to avoid tearing

the heat reflecting pad on the underbody, when

the transmission is being removed.

18.
Remove two bolts to disconnect the transmission

gearshift control lever and bracket assembly from

its adapter plate on side of transmission. Lower

transmission assembly from the vehicle, letting the

gearshift lever slide down and through the dust boot

in the console.

19.
Remove transmission-to-clutch housing attaching

bolts.

20.
Slide transmission assembly rearward from clutch

and rotate transmission for access to the three flat

head machine screws in the control lever bracket

adapter plate. Remove adapter plate. Rotate trans-

mission back to the upright position.

21.
To allow room for transmission removal slowly

lower the rear of engine until the tachometer drive

cable at the distributor just clears the horizontal

ledge across the front of dash.

CAUTION: The tachometer cable can be easily

damaged by heavy contact with the dash. Slide

transmission rearward out of the clutch, then

tip front end of transmission downward and

lower the assembly from vehicle.

22.
Reinstall transmission assembly by performing above

steps in reverse order.

TRANSMISSION OVERDRIVE

INDEX

Page

General
Description 7-10

Maintenance
and Adjustments 7—10

Governor
Switch and Pinion .............. 7-10

Sun
Gear Solenoid Oil Seal and Control

Cable
Bracket 7-10

Case
Rear Oil Seal 7-10

Removal
7-10

Installation
. . . . . 7-10

Control
Shaft Lever and Oil Seal 7-10

Speedometer
Driven Gear 7-10

Electrical
Unit Checks 7-11

Overdrive
Relay . 7-11
Page

Air
Gap 7-11

Point
Opening 7-11

Closing
Voltage 7-11

Solenoid
. 7-11

Closing
Coil 7-11

Engaging
Spring . - 7-11

Ignition
Grounding Contact . 7-11

Governor
Switch 7-11

Kickdown
Switch 7-11

Diagnosis
- Overdrive 7-12

Mechanical
. 7-12

Electrical
7-13

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-10 ,

GENERAL DESCRIPTION

The overdrive unit is essentially a two-speed planetary-

transmission attached to the rear of a conventional three-

speed transmission. In overdrive, engine speed is ap-

proximately 30 per cent slower at a given road speed

since the drive train includes planetary gears which pro-

vide a lower overall gear ratio than that obtained in high

gear with the conventional transmission.

The electrical equipment which controls the automatic

action of the mechanical portion of the overdrive unit

consists of a solenoid, a speed-sensitive governor switch,

a relay and a kickdown switch. The circuit including this

equipment makes it possible to operate in overdrive above

a pre-set cut-in speed, or in .conventional drive at any

speed.

With the overdrive unit engaged, the transmission

should not be left in any forward gear with intent of lock-

ing the drive-line as the overrunning clutch is a free-

wheeling condition.
SERVICING THE OVERDRIVE

With the,overdrive assembly removed from the trans-

mission, service operations on the transmission proper

are the same as for the standard three-speed trans-

mission.

Repairs to the overdrive housing, output shaft, ring

gear assembly, clutch cam, roller retainer, pinion cage,

sun gear, shift rail, sun gear control plate, output shaft

bearing, oil seal, speedometer drive gear, solenoid pawl

and interlock plunger may be performed underneath the

car, if so desired, by removing the overdrive housing

without disturbing the transmission. Refer to Overhaul

Manual for Service Procedure.

If the transmission mainshaft, overdrive adapter or

transmission rear bearing which is retained in adapter

require replacement, the entire transmission and over-

drive assembly should be removed and overhauled on the

bench.

MAINTENANCE AND ADJUSTMENTS

Servicing of the overdrive governor switch and pinion,

the sun gear solenoid, oil seal and cable bracket, the out-

put shaft rear oil seal, the control shaft lever, and the

speedometer driven gear may be accomplished without

removing the overdrive from the vehicle, as discussed

in the following paragraphs:

GOVERNOR SWITCH AND PINION

To remove governor switch, disconnect wires at gover-

nor switch and screw governor
out
of housing, using Tool

J-4653 on the flat hexagonal surface of governor case.

The pinion may be separated from the governor by re-

moving the snap ring on the shaft.

SUN GEAR SOLENOID, OIL SEAL AND

CONTROL CABLE BRACKET

Remove the solenoid by taking out the two mounting

bolts and lock washers, removing
the.
cable bracket with

the lower bolt. Turn the solenoid 1/4 turn and
pull,
sole-

noid plunger out of adapter. The oil seal may be pried

out of the adapter.

CASE REAR OIL SEAL

Removal

1.
Remove propeller shaft as outlined in Section 4.

2.
Using a punch against seal in housing, pry out seal

from housing.

Installation

1.
Prelubricate between sealing lips and coat outside of

new oil seal with a suitable sealant, then start seal

into bore in overdrive housing.

2.
Using Tool J-5154 drive oil seal into counterbore.

3.
Install propeller shaft as outlined in Section 4.

CONTROL SHAFT LEVER AND/OR "O" RING

OIL SEALS

To remove- the control shaft, disconnect the cpntrol
cable, remove tapered pin and pull lever out. Replace

the two "0" ring seals on the control shaft. Insert shaft

and new "O" ring seals into housing and install tapered

pin. Connect control wire to lever.

SPEEDOMETER DRIVEN GEAR

Disconnect speedometer cable, remove lock plate to

housing bolt and lock washer and remove lock plate. In-

sert screw driver in lock plate slot in fitting and pry

fitting, gear and shaft from housing. Pry "O" ring from

groove in guide.

Install new "O" ring in groove in fitting and insert

shaft.

Hold the assembly so slot in fitting is toward lock plate

boss on housing and install in housing. Push fitting into

housing until lock plate can be inserted in groove and

attached to housing.

L
dl

ZAIR GAP

km (CHECK WITH

M*= POINTS BARELY
'A

AoWER
|^

POINT

0 ADJUST

=^ i
SUPPORT

Fig. IB - Checking Relay Air Gap

CHEVROLET CHASSIS SERVICE MANUAL