1967 CHEVROLET CAMARO ECO mode

ENGINE FUEL 6M-7

5. On vehicles equipped with automatic transmission

hold throttle rod in full throttle position, pull TV

rod to full detent position and adjust TV rod to just

enter hole on throttle lever, then connect TV rod at

throttle lever.
NOTE:
If equipped with anti-stall device (dash-

pot),
set carburetor fast idle cam on high step

and adjust dash-pot to just contact throttle

lever.

327
CU.
IN.
427
CU.
IN.

Fig.
8C—Throttle Linkage-Corvette

AIR
CLEANERS

INDEX

Page

General Description 6M-7

Service Procedures . . 6M-8

Polyurethane. Element 6M-8

Maintenance 6M-8

Oil Bath 6M-8
Page

Maintenance
...........* 6M-8

Oil
Wetted
Paper
Element
6M-9

Replacement
* . 6M-9

Testing 6M-9

Tool J-7852 . 6M-9

GENERAL DESCRIPTION

Air cleaners on all models operate primarily to re-

move dust and dirt from the air that is taken into the

carburetor and engine. All air cleaners on engines

equipped with "Closed Positive" ventilation incorporate

flame arresters. Every 12,000 miles the flame ar-

resters should be removed, cleaned in solvent and blown

dry with compressed air.

An oil wetted polyurethane element air cleaner (fig. 1A)

is standard equipment on In Line engines. This type

cleaner element is reusable and should be removed,

cleaned, re-oiled and reinstalled every 12,000 miles or

more often during dusty or other adverse driving con-

ditions. The optional, oil bath air cleaner (available on
Chevrolets with L6 engine) should be cleaned and re-

filled with oil at oil change intervals.

On the V8 engines,, a replaceable, oil wetted paper

element type is used (fig; 2A). Both ends of me paper

element are bonded with plastisol sealing material.

The improved oil wetted paper elements have increased

filtering capacity over their dry paper predecessors.

Oil on the paper causes the element to become diBcolored

by a small amount of dirt but does not necessarily mean

the element is plugged or reduced in efficiency. Every

12,000 miles or more often during dusty or other adverse

driving conditions, either replace oil wetted paper ele-

ment or test element using ToolJ-7825.

CHEVROLET CHASSIS SOVICE/MANUAL

ENGINE-ELECTRICAL
6Y-21

Fig.
6i—Distributor Lead Arrangements

NOTE:
End of cam
lubricant wick should
be

adjusted
to
just touch
cam
lobes. Over lubrica-

tion
of cam
resulting
in
grease
on
contact points

can-
be
caused
by cam
lubrication wick bearing

too hard against
cam
surface.
A
correctly
ad-

justed
cam
lubricator wick will provide adequate

lubrication
for cam. Do not
apply additional

grease
to cam
surface.

7.
Start engine
and
check point dwell
and
ignition

timing.
ACTUAL
POINT OPENING
.021

.016
FEELER GAUGE

LOCATOR ___JH^H

(ROUND)
V~^3H|

CENTRIFUGAL
\
jdft

ADVANCE
-~-»JBlMBl

MECHANISM
«H

CAM g^k. / X

LUBRICATOR
V^^^

REPLACEMENT
^£9

^-ADJUST
SQUARELY

AND
JUST

TOUCHING
LOBE

OF
CAM
.ROTOR

I^^I^BL
LOCATOR

(PBV 7
(SQUARE)

SBSSF
/

WWjga^/
^/
LUBRICATOR

H^f
CAUTION!

S5y
NEVER
OIL

•-^
CAM
LUBRICATOR-

REPLACE
WICK

WHEN
NECESSARY
Fig.
8i—Inaccurate Gauging
of
Rough Points

SETTING DWELL ANGLE

Four
and Six
Cylinder Engine Distributors

The point opening
of new
points
can be
checked with
a

feeler gauge,
but the use of a
feeler gauge
on
rough
or

uncleaned used points
is not
recommended since accurate

mechanical gauging cannot
be
done
on
such points (fig. 8i).

Contact points must
be set to the
proper opening.

Points
set too
close
may
tend
to
burn and
pit
rapidly.

Points with excessive separation tend
to
cause
a
weak

spark
at
high speed. Proper point setting
for all

models
are:

.019"
for new
points

.016"
for
used points

New points must
be set to the
larger opening
as the

rubbing block will wear down slightly while seating
to the

cam. Contact points should
be
cleaned before adjusting
if

they have been
in
service.

LATERAL

MISALIGNMENT
PROPER

LATERAL
ALIGNMENT

pCORRECT
LATERAL MISALIGNMENT
BY

M
BENDING FIXED CONTACT SUPPORT

[NEVER
BEND BREAKER LEVER

Fig.
7i—Top View
of
Distributor

Fig.
9i—Alignment
of
Points

CHEVROLET
CHASSIS SERVICE /MANUAL

ENGINE-ELECTRICAL 6Y-33

O

V-8 ENGINE
STARTING MOTOR

Fig.
2s—V-8 Starting Circuit Diagram

2.

3.
From battery negative post
To
starting motor

housing.

From solenoid battery terminal
To
solenoid motor

terminal.

If voltage drop
in
any
of
above check exceeds 0.2 volts,

excessive resistance
is
indicated in that portion
of
start-

ing circuit
and the
cause
of the
excessive resistance

should
be
located
and
corrected
in
order to obtain maxi-

mum efficiency in the circuit.

CAUTION:
Do not
operate
the
starting motor

continuously
for
more than
30
seconds
to
avoid

overheating.

When
the
solenoid fails
to
pull
in, the
trouble may be

due
to
excessive voltage drop in the solenoid control cir-

cuit.
To
check
for
this condition, close
the
starting

switch
and
measure
the
voltage drop between
the
BAT-

TERY terminal of the solenoid and the
SWITCH (S)
termi-

nal
of
the solenoid.
1.
If
this voltage drop exceeds 3.5 volts, excessive
re-

sistance
in the
solenoid control circuit
is
indicated

and should be corrected.

2.
If the
voltage drop does not exceed 3.5 volts and the

solenoid does not pull in, measure the voltage availa-

ble
at
the SWITCH terminal
of
the solenoid.

3.
If the
solenoid does
not
feel warm,
it
should pull
in

whenever the voltage available
at
the SWITCH termi-

nal
is 7.7
volts
or
more. When
the
solenoid feels

warm,
it
will require
a
somewhat higher voltage
to

pull in.

STARTING MOTOR AND SOLENOID CHECK

The following checks
may be
made
if the
specific

gravity of the battery
is
1.215
or
higher.

1.
If the
solenoid does
not
pull in, measure the voltage

between
the
switch
(S)
terminal
of the
solenoid
and

ground with the starting switch closed.

CAUTION:
If the
solenoid feels warm, allow
to

cool before checking.

If
the
voltage
is
less than 7.7 volts, check for ex-

cessive resistance
in the
solenoid control circuit.

If
the
voltage exceeds 7.7 volts, remove the starting

motor
and
check
(1)
solenoid current draw,
(2)

starting motor pinion clearance,
and (3)
freedom of

shift lever linkage.

2.
If
the solenoid "chatters" but does not hold in, check

the solenoid
for an
open "hold-in" 'winding. When-

ever
it is
necessary
to
replace
a
starting motor

solenoid, always check starting motor pinion

clearance.

3.
If
motor engages
but
does
not
crank
or
cranks

slowly, check
for
excessive resistance
in the ex-

ternal starting circuit, trouble within
the
starting

motor,
or
excessive engine resistance
to
cranking.

SERVICE OPERATIONS

STARTING MOTOR

REMOVAL AND INSTALLATION (Fig.
3s)

The following procedure
is a
general guide
for all

vehicles
and
will vary slightly depending
on
series
and

model.

1.
Disconnect battery ground cable at battery.

2.
Raise vehicle
to a
good working height.

3.
Disconnect all wires
at
solenoid terminals.

NOTE: Reinstall
the
nuts
as
each wire
is
dis-

connected
as
thread size
is
different but may be

mixed and stripped.

4.
Loosen starter front bracket (nut on V-8 and bolt on

L-6) then remove two mount bolts.

5.
Remove
the
front bracket bolt
or nut and
rotate

bracket clear
of
work area then lower starter from

vehicle
by
lowering front end first
—
(hold starter

against bell housing
and
sort
of
roll end-over-end).

6. Reverse
the
removal procedure
to
install. Torque

the mount bolts
to
25-35
ft.
lbs. first, then torque

brace bolt.

7.
Check operation
of
starter on vehicle.
Fig.
3s—Starter Mounting

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 7-14

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 7-24

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

FUEL TANK AND EXHAUST SYSTEMS
8-8

CHEVELLE

FUEL TANKS

INDEX

Page

General Description.
g.g

Component Part Replacement
8-8

Fuel Tanks
. 8-8

Fuel Lines
8-8
Metering Units (Gauge, Sending Unit)

Fuel Tank Filler Neck Caps.
. .

Fuel Tank Vent Lines
Page

8-8

8-8

8-9

GENERAL DESCRIPTION

All models
use a 20
gallon capacity (approx.) fuel tank

mounted between
the
frame rails behind
the
rear axle.

The fuel tanks
are
basically
the
same
for
sedan, 2-seat

station wagon
and
pickup models except
for
filler neck

location
and
venting
(fig. 8).

All fuel tanks
are
vented
to the
atmosphere. Sedan

model tanks have
an
external vent hose and pipe assem-

bly
(fig. 11) and use a
non-vented fuel cap. Station wagon

and pickup model tanks
are
vented through
a
hose
and

vent pipe assembly
to the
filler neck
(fig. 8)
and
use a

vented, anti-surge type
gas cap. The
fuel caps
are two

different designs conforming
to SAE
standards
and are

not interchangeable.

The filler neck assembly
on
sedan models
is a
rear

fill design located behind
the
center
bar of the
bumper.
Station wagon
and
sedan pickup model filler neck assem-

blies
are
located
in
the left rear quarter panel.

The fuel pickup pipe
is
built integrally with
the
tank

gauge, located
at the
top-front center
of
the tank.
A
fine

mesh screen
is
located
at
the bottom-end
of the
fuel pick-

up pipe
to
prevent
the
entrance
of
foreign material into

the fuel system.

The sedan fuel tanks
are
held
in
place
by
two metal

straps attached individually
to the
underbody
at
each
end.

The straps hinge
at the
forward end and secure
the
tank

at
the
rear with
an
adjustable bolt
and nut
assembly.

The station wagon
and
pickup models have
a
frame

mounted fuel tank secured with straps
to
front and rear

supports.

COMPONENT PART REPLACEMENT

FUEL TANK

Draining Tank

The absence
of a
drain plug
in the gas
tanks makes
it

necessary
to
siphon fuel from
the
tank when draining
is

needed. Refer
to the
recommended draining procedures

previously outlined under Chevrolet Models
in
this

section.

Removal
and
Installation (Sedan Models)

1.
Raise vehicle.

2.
Drain fuel tank.

3.
Disconnect fuel pickup line
and
gauge wires from

tank unit.

4.
Disconnect vent hose from tank.

5. Remove tank support straps and lower tank carefully.

6.
To
install, reverse
the
removal procedure.

Removal
and
Installation

(Station Wagon
and
Pickup)

1.
Follow Steps
1
thru
3
outlined under sedan models.

2.
Remove tank support straps.

3.
Remove frame screw attachments from
the
front

support
(fig. 8).

4.
Guide tank forward
and
remove.

5.
To
install, reverse removal procedure.

FUEL LINES

The fuel lines, extending from fuel tank toiiuelpump,

are routed
on the
underside
of the
underbody along
the

right side
of the
vehicle opposite
the
single exhaust
sys-

tem.
The
fuel lines should occasionally
be
inspected
for
leaks,
kinks,
or
dents.
If
evidence
of
dirt
is
found
in the

carburetor
or
fuel pump
on
disassembly,
the
lines should

be disconnected
and
blown
out.
Check
the
fuel tank

strainer
for
damage
or
omission. Fuel lines
are of 5/16"

diameter tubing with beaded type ends
for
connections
of

hoses.

FUEL PIPE RETAINER
CUP

Removal
and
Installation

If fuel pipes
and
retainer clips
are
removed, Tool

J-7777 should
be
used
to
install
new
retainer clips
(fig.

10).
After removal
of the old
clip from
the
frame, position

the
new
clip
in the
location
of the old
clip. Index
the

"blind rivet"
and
press hard (hand pressure should
do)

to expand rivet.

GAUGE UNIT
AND
FUEL STRAINER

Removal
and
Installation
(Fig. 11)

1.
Drain tank
to a
level below
the
unit.

2.
Disconnect fuel pickup line
and
gauge unit wire.

3.
Use
special Tool J-8950
to
remove
cam
lock.
Re-

move unit
and
rubber gasket.

CAUTION: Carefully remove unit
so as not to

damage screen
on the end of
the pipe.

4.
Clean screen
by
blowing
out
with compressed
air.

5. Reverse procedure
to
install.

FUEL TANK FILLER NECK CAPS

The fuel tank filler neck caps
are
non-vented with
an

anti-surge feature. Station wagons have vented caps.

(Refer
to
"Fuel Tank Vent Lines").

CHEVROLET CHASSIS SERVICE MANUAL

FUEL TANK
AND
EXHAUST SYSTEMS
8-13

CHEVY II

FUEL TANKS

INDEX

Page

Page

General Description.
8-13

Component Part Replacement
8-13

Fuel Tanks
8-13

Fuel Lines
8-14
Metering Units (Gauge Sending Unit)
8-13

Fuel Tank Filler- Neck Caps.
. . 8-14

Fuel Tank Vent Lines .......
8-14

GENERAL DESCRIPTION

ANTI-SQUEAK

MA'
ANTI-SQUEAK

MATERIAL

SEDANS

STATION WAGON

Fig.
15-Chevy
II
Fuel Tanks

All Chevy
II
Models have
16
gallon capacity (approx.)

fuel tanks mounted between
the
frame rails
to the
rear
of

the rear axle
(fig. 15). The
fuel tanks
are
basically
the

same
for the
passenger
car
and two-seat,
six
passenger

station wagon models. The tanks
are
held
in
place
by two

metal straps attached individually
to the
underbody
at

each
end. The
straps hinge
at the
forward
end
and secure

the tank
at the
rear with
an
adjustable bolt and nut
ad-

sembly. The tank rests against the rear compartment
pan

reinforcement.
The
two-seat station wagon
gas
tank
is

secured
to the
contour
of
forward
and
rear underbody
brackets.
The
filler neck
is
accessible
by
removal
of a

fender
gas cap at the
rear left fender location.

A fine mesh screen
is
located
at the end of the
fuel

pickup pipe
to
prevent
the
entrance
of
dirt into
the sys-

tem.
The
tank
can be
drained
by
siphoning
at the
filler

neck
or by
removing
the
gauge sending unit and siphon-

ing
at the
tank opening.

CAUTION: Care should
be
exercised
to
avoid

denting
or
puncturing
the
fuel tank when
in-

stalling
or
removing.
~

COMPONENT PART REPLACEMENT

FUEL TANKS

Draining Tank

The absence
of a
drain plug
in
the Chevy
n
Model
gas

tanks makes
it
necessary
to
siphon fuel from
the
tank

when draining
is
needed. Refer
to the
recommended

draining procedures previously outlined under Chevrolet

Models
in
this section.

Removal
and
Installation

1.
Drain fuel tank.

2.
Raise
and
support vehicle.

3.
Disconnect
the
filler neck inlet hose
and the
vent

connection
(fig. 15).

4.
Remove
the gas
tank sending gauge unit access hole

cover
on
station wagons.
5. Disconnect fuel tank gauge sending unit with special

spanner Tool J-8950, detach wire
and
fuel pickup

line
at the gas
tank.

6. Remove tank support straps and lower tank carefully.

7. Reverse procedure
to
install.

The sending units
are
located on
the top
forward
end of

the
gas
tanks.
The
fuel strainer
is
located
at the end of

these sending units.

FUEL TANK GAUGE SENDING UNIT

AND FUEL STRAINER
(Fig. 16)

Replacement

1.
Drain tank
to a
level below
the
unit.

2.
Disconnect fuel pickup line
and
gauge unit wire.

3.
Use
special Tool J-8950
to
remove
cam
lock.
Re-

move unit and rubber gasket.

CHEVROLET CHASSIS SERVICE MANUAL