1967 CHEVROLET CAMARO tow

ENGINE-ELECTRICAL 6Y-24

Fig.
13I-V-8 Distributor (Typical)-Exploded View

1.

2.

2a.

3.

4.
Condenser

Contact Point Assembly

Cam Lubricator

Retaining Ring

Breaker Plate
5.

5a.

6.

7.
Felt Washer

Plastic Seal

Vacuum Advance

Unit

Housing
8.^
Shim
Washer

9. Drive Gear Pin

10.
Drive Gear

11.
Cap

12.
Rotor
13.
Weight Springs

14.
Mainshaft

15.
Advance Weights

16.
Cam Weight

Base Assembly

When mounting distributors for tests, first secure the

gear in the test drive mechanism, then push the distribu-

tor housing downward toward the gear to take up any end

play between the gear and the housing.

NOTE:
When testing distributors that have

their lower shaft support bushing located in the

engine block (6 cylinder engines), a special

adapter should be used to insure the shaft will

run true in its housing.

Test the distributor for variation of spark, correct

centrifugal and vacuum advance and condition of contacts.

This test will give valuable information on distributor

condition and indicate parts replacement which may be

necessary. Check the area on the breaker plate just

beneath the contact points. A smudgy line indicates that

oil or crankcase vapors have been present between the

points.

Four and Six Cylinder Engines

Refer to Figure 12i.

1.
Remove the rotor.
2.

3.
Remove the vacuum control assembly retaining

screws, detach the unit from the distributor housing.

Disconnect the primary and condenser leads from the

contact point quick disconnect terminal, remove the

contact point set attaching screw, condenser attach-

ing screw. Remove the point set and condenser from

the breaker plate.

Remove the breaker plate attaching screws, remove

the breaker plate from the distributor housing (fig.

NOTE:
Do not disassemble breaker plate any

further.

5. Remove the roll pin retaining the driven gear to the

mainshaft, slide the gear from the shaft.

6. Slide the cam and mainshaft from the distributor

housing.

7. Remove the weight cover, and stop plate screws, re-

move the cover, weight springs, weights and slide

cam assembly from the mainshaft.

V-8 Engines

Refer to Figure 13i.

CHEVROLET CHASStS SERVICE MANUAL

ENGINE-ELECTRICAL 6Y-27

timing mark on pulley lines up with timing tab.

2.
Position distributor to opening in block in normal

installed attitude (fig. 15i), noting position of vacuum

control unit.

3.
Position rotor to point toward front of engine (with

distributor housing held in installed attitude), then

turn rotor counter-clockwise approximately 1/8 turn

more toward left cylinder bank and push distributor

down to engine camshaft. It may be necessary to ro-

tate rotor slightly until camshaft engagement is felt.

4.
While pressing firmly down on distributor housing,

kick starter over a few times to make sure oil pump

shaft is engaged. Install hold-down clamp and bolt

and snug up bolt.

5. Turn distributor body slightly until points just open

and tighten distributor clamp bolt.

6. Place distributor cap in position and check to see

that rotor lines up with terminal for No. 1 spark

plug.

7. Install cap, check all high tension wire connections

and connect spark plug wires if they have been re-

moved. It is important that the wires be installed in

their location in the supports.

NOTE:
The brackets are numbered to show the

correct installation. Wires must be installed as

indicated to prevent cross firing.

8. Connect vacuum line to distributor and distributor

primary wire to coil terminal.

9. Start engine and set timing as described under Turn-

Up in Section 6.

BREAKERLESS (MAGNETIC PULSE)

DISTRIBUTOR

REMOVAL (CORVETTE)

1.
If vehicle is equipped with radio, remove three bolts

securing ignition shield over distributor and coil.

One bolt is accessible from the top of shield, the

other two are at rear of shield, facing firewall.

2.
Disconnect tachometer drive cables from distributor

housing.

3.
Disconnect pickup coil leads at connector.

4.
Remove distributor cap.

5. Crank engine so rotor is in position to fire No. 1

cylinder and timing mark on harmonic balancer is

indexed with pointer.

6. Remove vacuum line from distributor.

7. Remove distributor clamping screw and hold-down

clamp.

8. Remove distributor and distributor-to-block gasket.

It will be noted that the rotor will rotate as the

distributor is pulled out of the block. Mark the re-

lationship of the rotor and the distributor housing

after removal so that the rotor can be set in the

same position when the distributor is being installed.

DISASSEMBLY (Fig. 16i)

NOTE:
If a distributor is being disassembled

for replacement of the stationary magnetic

pickup assembly only, it will be necessary to

perform only Steps 3, 4, 5, 7, 8, 9, and 12 of the

service procedure listed below.
1.
Remove screws securing rotor and remove rotor.

2.
Remove centrifugal weight springs and weights.

3.
Remove the tachometer drive gear from the distribu-

tor (Corvette only).

4.
Remove roll pin, then remove distributor drive gear

and washer.

CAUTION: To prevent

magnet, support drive gear
;e to the permanent

?n
driving out roll

pin.

5. Remove drive shaft assembly.

6. Remove centrifugal weight support and timer core

from drive shaft.

7. Remove connector from pickup coil leads.

8. Remove retaining ring which secures magnetic

core support plate to distributor shaft bushing in

housing.

9. As a unit, remove the entire magnetic pickup assem-

bly from the distributor housing.

10.
Remove brass washer and felt pad.

11.
Remove vacuum advance unit.

12.
To reassemble distributor, perform the above steps

in reverse order.

INSTALLATION (CORVETTE)

1.
Check to see that the engine is at firing position for

No.
1 cylinder (timing mark on harmonic balancer

indexed with pointer).

2.
Position a new distributor-to-block gasket on the

block.

3.
Before installing distributor, index rotor with hous-

ing as noted when distributor was removed. Install

distributor in block so that vacuum diaphragm faces

approximately 45° forward on the right side of the

engine and the rotor points toward contact in cap for

No.
1 cylinder.

4.
Replace distributor clamp leaving screw loose

enough to allow distributor to be turned for timing

adjustment.

5. Install spark plug wires in distributor cap. Place

wire for No. 1 cylinder in tower (marked on old cap

during disassembly) then install remaining wires

clockwise around the cap according to the firing

order (1-8-4-3-6-5-7-2).

6. Attach distributor to coil primary wires.

7. Replace distributor cap.

8. Adjust timing and then fully tighten distributor clamp

screw.

9. Attach vacuum line to distributor.

10.
Connect tachometer drive cables to distributor body.

11.
Replace ignition shields.

DISTRIBUTOR OFF-ENGINE TEST

The distributor's centrifugal and vacuum advance can

be checked in a distributor testing machine or synchro-

scope specially adapted or designed to accommodate this

type distributor. However, since this involves removing

the distributor from the engine, this test may be post-

poned until other system checks have been made. A dwell

reading cannot be obtained on this distributor and it is not

likely that the centrifugal or vacuum advance will be a

cause of trouble.

COIL REPLACEMENT

1.
Disconnect ignition switch and distributor leads from

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-2

Fig.
2 - Chevelle Clutch Pedal Free Travel Adjustment (V-8 Shown)

some clearance between cross shaft and both its

mounting brackets.

CLUTCH LINKAGE ADJUSTMENT

There is one linkage adjustment (clutch fork push rod

or pedal push rod) to compensate for all normal clutch

wear.

The clutch pedal should have
1-1/4"
free travel (meas-

ured at clutch pedal pad) before the throwout bearing en-

gages the clutch diaphragm spring levers. Lash is re-

quired to prevent clutch slippage which would occur if the

bearing was held against the fingers and to prevent the

bearing from running continually until failure.

Chevrolet Linkage Adjustment (Fig. 1}

With Nuts (A) & (B) loose on Rod (D)
&
before installa-

tion of Clutch Pedal Return Spring
(E),
apply approximately

5 lbs. load in direction of arrow (F) to eliminate clear-

ance between throwout bearing and clutch fingers. Move

Rod (D) in direction of arrow (G) until Clutch Pedal Arm

makes contact with Bumper Stop on instrument panel

brace. Run Nut (B) toward Swivel until dimension (X) is

9/32". Tighten Nut (A) to lock Swivel (C) against Nut (B).

Install Clutch Pedal Return Spring (E).

The foregoing procedure will provide a free pedal

travel of 1" to
1-1/2"
measured on a perpendicular from

the crown of the, pedal pad to the bare metal toe pan.

Chevelle Linkage Adjustment (Fig. 2)

1.
Disconnect spring between cross shaft lever and

clutch fork.

2.
Loosen push rod locknut about three turns.

3.
If there is no free travel, shorten the rod (by turning

at square wrench area) until it is free of clutch fork.

4.
Hold the clutch fork rearward to move throwout

lightly against clutch release fingers, then adjust rod

length until rod just touches ,its seat in the fork.
5.
Adjust locknut to obtain approximately 3/16" clear-

ance between nut and rod sleeve end.

6. Turn the rod with wrench, until the nut just comes in

contact with rod sleeve end, then hold the rod with

wrench and tighten locknut.

7.
Check free pedal travel at pedal (1" to
1-1/2"
is

proper clearance). Readjust if necessary.

Chevy II Linkage Adjustment (Fig. 3}

L-4 & L-6 Models

1.
Loosen locknut "A" and lengthen or shorten push rod

in swivel as required by turning with wrench on ma-

chined flat "B". (Shorten push rod to increase pedal

lash).

2.
Hold push rod at flat "B" and tighten locknut "A".

3.
Recheck pedal free travel.

NOTE: A measurement of approximately 3/16"

between push rod and its seat in fork will give

required pedal free travel.

V-8 Models

The eight cylinder linkage has a two-piece clutch fork

push rod (fig. 3). Adjust clutch pedal free travel by turn-

ing the adjusting rod portion of the push rod to obtain apr

proximately 3/16" clearance between clutch fork and end

of rod, ttien tighten locknut to 8-12 lbs. ft. and check free

travel at pedal. Pedal free travel on all models should

be 1" to
1-1/2".

Corvette Linkage Adjustment

Refer to fig. 1 and the following procedure:

1.
Disconnect pedal return spring.

2.
With Nuts (A) and (B) loose on Rod (D) apply push

hard load in direction of arrow (F) to eliminate

clearance between throwout bearing and clutch

fingers.

3.
Run Nut (B) towards Swivel (C) until dimension (X)

is 3/8" to 7/16".

4.
Tighten Nut (A) to lock swivel against Nut (B).

5.
Connect pedal return spring and check pedal free

travel for
1-1/4"
minimum to 2" maximum.

6. Check every 3,000 miles.

7.
Adjust free travel to 2" to 2-1/2" for heavy duty op-

eration. The return spring may be removed for

heavy duty conditions.

Camaro Linkage Adjustment

Refer to Figure 4 and the following procedure:

Apply a 10 lb. load in direction of Arrow (E) to hold

Clutch Pedal against Clutch Pedal Bumper.

Apply a 10 lb. load to Clutch Fork in direction of Arrow

(D) to eliminate clearance between throwout bearing and

clutch fingers.

Insert a .198 Spacer (F) between clutch fork and Ad-

justing Rod (A).

Rotate Adjusting Rod against Spacer until it has a 5 in.

lb.
torque.

Hold Adjusting Rod and tighten Nut (C) against Swivel

(B) or Rod (B).

Remove Spacer. Install return spring and extension to

clutch fork.

Pedal will have approximately 1" to
1-1/8"
free travel.

A clutch that has been slipping prior to free play ad-

justment may still slip right after the new adjustment due

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 7-10 ,

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

CLUTCH AND TRANSMISSIONS 7-15

LOCATING

GAGE B

N

Fig.
1C - Warner T-16 3-Speed Lever and Linkage Adjustment (Camaro and Corvette)

Clearance should be .002 to .008. Interlock sleeves

are available in four sizes to give the proper

clearance.

6. Install outer shifter levers to shafts with lock wash-

ers and nuts. Tighten securely. v

7.
Instill shifting forks to shift levers (1st and re-

verse fork "hump" towards bottom).

Installation

1.
Install new side cover gasket to transmission case,

install cover and secure with lock washers and cap

screws.

NOTE: The two rear side cover to case at-

taching bolts have a special oil sealing spline

and must be used at these two "through" hole

locations.

2.
Connect control rod and cross shaft to control

levers.

1.
Side Cover

2.
Poppet

3. 1st and Reverse Shifter

Lever and Shaft

4.
Poppet Spring

5. 1st and Reverse Shifter

Fork
6. Interlock Pin

7. 2nd and 3rd Shifting

Fork

8. Interlock Sleeve

9. 2nd and 3rd Shifter

Lever and Shaft

10.
"O11 Ring Seal

Fig.
2C - Side Cover Assembly - Layout

CHEVROLET CHASSIS SERVICE MANUAl

CLUTCH AND TRANSMISSIONS 7-19

2.
With handle in full down position—adjust cable to ac-

quire dimension shown, be certain that cable is pulled

taut.

3.
Tighten set screw to 15-20 in. lbs.

4.
Bend excess wire and cut - be certain that wire does

not interfere with I.D. of lever or threads of shifter

knob.

NOTE: Handle must return freely from any

position.

SPEEDOMETER DRIVEN GEAR AND OIL SEAL

Replacement

Disconnect speedometer cable, remove retainer to

housing bolt and lock washer and remove retainer. In-

sert screw driver in slot in fitting and pry fitting, gear

and shaft from housing. Pry "O" ring in groove in fitting.

Install new "O" ring in groove and insert shaft Hold

the assembly so slot in fitting is toward boss on housing

and install in housing. Push fitting into housing until re-

tainer can be inserted in groove and install retainer lock

washer and bolt.
Fig.
5M - Installing Side Cover Assembly

TRANSMISSION SIDE COVER

Removal

1.
Disconnect control rods from levers.

2.
Shift transmission into second speed before removing

cover, by moving 1-2 (Rear Cover) shifter lever into

forward detent position.

3.
Remove cover assembly -from transmission case

carefully and allow oil to drain.

Disassembly (Fig. 4M)

1.
Remove the outer shifter lever nuts,*lock washers

and flat washers. Pull levers from shafts.

2.
Remove both shift forks from shifter shaft and detent

plate assemblies. Remove both shifter shaft assem-

blies from cover. Lip seals in side cover may now

be pryed out if replacement is required because of

damage.

1-2 DETENT CAM DETENT SPRING
3-4 DETENT CAM

1-2 SHIFTER SHAFT

1-2 SHIFT FORK
3-4 SHIFT

FORK

DETENT CAM \ 3-4 SHIFTER SHAFT

RETAINER RING

DETENT CAM PIVOT PIN
3.
Remove detent cam spring and pivot retainer "C"

ring. Remove both detent cams.

4.
Replace necessary parts.

Assembly (Fig. 4M)

1.
Install 1-2 detent cam to cover pivot pin first, then

install 3-4 detent cam so the detent spring notches

are offset or opposite each other. Detent cam

notches must be facing downward.

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 lip seals. Install both shift

forks to detent plates, lifting up on detent cam to

allow forks to fully seat into position.

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

ers and nuts.

Installation (Fig. 5M)

1.
Shift 1-2 shifter lever into second speed (forward)

position. 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

15-20 ft. lbs. torque.

4.
Remove filler plug and add lubricant specified in

Section 0, to level of filler plug hole.

EXTENSION OIL SEAL

Replacement

1.
Remove propeller shaft.

2.
Pry out the extension oil seal.

3.
Prelubricate between sealing lips and press new oil

seal carefully into place in extension using J-5154 or

similar tool.

Fig.
4M - Transmission Side Cover/ Shift Fork and

Detent Assembly
CAUTION: Do not excessively force the seal

against the seat in the extension.

CHEVROLET CHASSIS SERVICE MANUAL

CLUTCH AND TRANSMISSIONS 7-24

is at the full mark on the dip stick, it is just slightly be-

low the planetary gear unit. If additional oil is added,

bringing the oil level above the full mark, the planetary

unit will run in the oil, foaming and aerating the oil. This

aerated oil carried through the various oil pressure pas-

sages (low servo, reverse servo, clutch apply, converter,

etc.) may cause malfunction of the transmission assem-

bly, resulting in cavitation noise in the converter and

improper band or clutch application. Overheating may

also occur.

If the transmission is found consistently low on oil, a

thorough inspection should be made to find and correct

all external oil leaks.

PERIODIC OIL CHANGE

The transmission oil should be changed periodically as

recommended in Section 0, and whenever transmission is

to be removed from the vehicle for repairs.

1.
Run engine for one minute in neutral prior to chang-

ing.

2.
Be sure vehicle is level or raise from the rear only.

3.
Remove the oil pan drain plug and allow oil to drain

thoroughly into a pan or can.

Replace drain plug and refill with approximately two

quarts of oil specified in Section 0.

NOTE: To refill the transmission, remove dip

stick from oil filler tube and refill transmission

with oil specified in Section 0 using filler tube

and funnel J-4264. Then, after shifting into all

ranges at idle speed to fill all oil passages, the

engine should be run at 800-1000 rpm with the

transmission in Neutral until the oil warms up,

then add oil as required to raise the fluid level

to the full mark on the dip stick. Refill capacity

is approximately 2 qts.
4.

Fig.
1PG - Adjusting Low Band Using J-21848
PERIODIC LOW BAND ADJUSTMENT (Fig. 1PG)

Low band adjustment should be periodically performed

at 12,000 mile intervals, or sooner, as necessary if op-

erating performance indicates low band slippage.

1.
Raise vehicle and place selector lever in neutral.

2.
Remove protective cap from transmission adjusting

screw.

3.
a. On Corvette Models: Drop left exhaust pipe for

clearance.

b.
On Chevelle Models: To gain clearance between

underbody and transmission, it may be necessary

to remove rear mount bolts from crossmember,

and move transmission slightly toward passenger

side of vehicle. .

4.
Loosen adjusting screw lock nut 1/4 turn and hold in

this position with wrench.

5.
Using Special Tool J-21848 adjust band to 70 in. lbs.

and back off four (4) complete turns for a band which

has been in operation for 6,000 miles or more,.or

three (3) turns for one in use less than 6,000 miles.

CAUTION: Be sure to hold the adjusting screw

lock nut at 1/4 turn loose with a wrench during"

the.adjusting procedure.

6. Tighten the adjusting screw lock nut to specified

torque.

CAUTION: The amount of back-off is not an

approximate figure, it must be exact.

MANUAL SHIFT LINKAGE CHECK & ADJUST

(Column Type)

1.
The shift tube and lever assembly must be free in the

mast jacket. See Section 9 for alignment of steering

column assembly if necessary.

2.
To check for proper shift linkage adjustment, lift

the transmission selector lever towards the steering

wheel. Allow the selector lever to be positioned in

drive (D) by the transmission detent.

NOTE: Do not use the indicator pointer as a

reference to position the selected lever. When

performing linkage adjustment, pointer is ad-

justed last.

3.
Release the selector lever. The lever should be in-

hibited from engaging low range unless the lever is

lifted.

4.
Lift the selector lever towards the steering wheel,

and allow the lever to be positioned in neutral (N) by

the transmission detent.

5.
Release the selector lever. The lever should now

be inhibited from engaging reverse range unless the

lever is lifted.

6. A properly adjusted linkage will prevent the selector

lever from moving beyond both the neutral detent, and

the drive detent unless the lever is lifted to pass

over the mechanical stop in the steering column.

7.
In the event that an adjustment is required, place

the selector lever in drive (D) position as determined

by the transmission detent. See Steps 2 and 3.

8. Loosen the adjustment swivel at the cross-shaft,

and rotate the transmission lever so that it contacts

the drive stop in the steering column.

9. Tighten the swivel and recheck the adjustment. See

2 and 6.

CHEVROLET CHASSIS SERVICE MANUAL