1969 FORD MUSTANG checking oil

04-05-04
Specifications

04-05-04

ATTACHING TORQUE SPECIFICATIONS -(By Axle Ring Gear Diameter)

Description

Differential Bearing Cap Bolt- 7 1/4"

8"

All Others

Differential Bearing Adjusting

Nut Lock Bolts

Carrier
to
Housing Stud Nuts-

8", 8 3/4", 9" 8 3/8"

Pinion Retainer
to
Carrier Bolts-

8", 8 3/4", 9" 9 3/8"

Ring Gear Attaching Bolts-

7 1/4"

All Others

Differential Pinion Shaft

Lock Pin
•
8 1/2" Only
Torque Lbs.
Ft.

40-55

55-70

70-85

12-25

25-40

30-45

40-55

65-80

15-22
Description

Rear Cover Screw and Washer

Assemblies
-8
1/4" &
8
1/2

Only

Oil Filler Plug

Rear Axle Shaft Bearing Retainer

Bolt Nuts:

Falcon,
Fairlane, Montego,

Mustang and Cougar (All)

Ford & Meteor (Exc.
8 1/2" R.G.)

Mercury,
T
Bird

Lincoln Continental (All)

Brake Backing Plate Bolt Nuts-

Ford & Meteor
8
1/2" Only
Torque Lbs.
Ft.

25-35

25-50

20-40

50-75

30-55

20-40

LUBRICANT
CAPACITIES
AND CHECKING PROCEDURES®

Vehicle

Falcon,
Mustang

Cougar, Fairlane, Falcon

Montego, Mustang

Ford,
Meteor

Ford,
Meteor

Cougar, Fairlane, Falcon, Ford,

Mercury, Meteor, Montego, Mustang

Lincoln,
Thunderbird
Engine

(C.I.D.)

170,
200

250,
302

240,
302

240,
302

351,
390,

428,
429

429,
460
Axle

Ratio

All

All

2.80:1,
3.10:1

All Except

2.80:1,
3.10:1

All

All
U.S. Measure

Capacity® (Pints)

2.5

4.0

4.0

5.0

5.0

5.0©
Imperial

Capacity
CD
(Pints)

2

31/5

3 1/5

4.0

4.0

4.0©

©All limited slip and Traction-Lok axles use ESW-M2C-104-A lubricant (C6AZ-19580-C).

All conventional axles use ESW-M2C-105-A lubricant (C6AZ-19580-B).

©Approximate refill capacity-Actual lubricant capacities are determined
by
filling
to
bottom
of
filler hole.

©To check these axles, the plug should be backed
out
slowly.
If
seepage occurs around the threads, the plug should
be
turned back
in

immediately to avoid any drainage. This indicates that the specified amount
of
lubricant
is
present
in
the axle.

SPECIAL TOOLS

FORD,
MERCURY, METEOR

Ford Tool No.

T66L-4204-L

T57L-500-A

T50T-100-A

TOOL-4235-C

T00L-4621-A

TOOL-1225-D

T00L42344

TOOL-1177

TOOL-U75-AB

T57L4220-A

T00L4221-AE

T00L-4221-AF

T66P-4220-P

TOOL-4851-K
Former No.

42211 or

42211-A

6005-M

6005-MS

B-160

4235C

—

—

4234-A

4245-B

1175-AB

—

4221-AF

T57L-4851-A

4851-K
Description

Limited-Slip Differential Check

Bench Fixture

Impact Hammer

Axle Shaft Remover

Drive Pinion Bearing and

Rear Wheel Bear Replacer

Rear Wheel Bearing Remover

Rear Wheel Bearing Installer

Rear Wheel Bearing Oil Seal Installer

Rear Wheel Bearing Oil Seal Remover

Differential Bearing Remover

Differential Bearing Remover

U-Joint
Flange Holder
Ford Tool No.

T53T4851-A

T00L4858-D

T57L4614-A

T00L4621-K

T53L-200-A

T57L-4625-A or

T00L4625-K

T57L4616-A or

T00L4615-D

T58L-101-A

T55P4616-A2

T57L4621-B or

T00L4621-L

T58L4676-A

T00L4858-E
Former No.

4851-A, D

—

4614

4621-K

—

4625-K

—

—

—

—

4676-F

4858-E
Description

U-Joint
Flange Remover

U-Joint
Flange Remover

Drive Pinion Retainer Support

Pinion Rear Bearing Cone Remover

Handle Adapter

Pinion Pilot Bearing Remover and

Installer

Pinion Front Bearing Cup Remover

and Replacer

Puller Attachment—For Bearing

Cup Removal

Pinion Rear Bearing Cup Remover

and Replacer

Pinion Rear Bearing Cone Installer

Drive Pinion Oil Seal Replacer

U-Joint
Flange and Pinion Bearing

Replacerprocarmanuals.com

07-01-04
General Transmission Service

07-01-04

taching bolts to the proper torque. If

necessary, replace the gasket.

Check the fluid filler tube connec-

tion at the transmission case or pan.

If leakage is found here, install a new

O-ring or tighten the fitting to the

specified torque.

Check the fluid lines and fittings

between the transmission and the

cooler in the radiator tank for loose-

ness,
wear, or damage. If leakage can-

not be stopped by tightening a fitting,

replace the damaged parts.

Check the engine coolant in the ra-

diator. If transmission fluid is present

in the coolant, the cooler in the radia-

tor is probably leaking.

The cooler can be further checked

for leaks by disconnecting the lines

from the cooler fittings and applying

50-75 psi air pressure to the fittings.

Remove the radiator cap to relieve the

pressure build at the exterior of the oil

cooler tank. If the cooler is leaking

and will not hold this pressure the

cooler must be replaced. Cooler re-

placement is described in the Cooling

System Section of Group 11.

If leakage is found at either the

downshift control lever shaft or the

manual lever shaft, replace either or

both seals.

Inspect the pipe plug on the left

side of the transmission case at the

front. If the plug shows leakage, tor-

que the plug to specifications. If tight-

ening does not stop the leaks, replace

the plug. On a C6 transmission, a TV

pressure plug is also provided on the

right rear side of the case.

When converter drain plugs leak,

remove drain plugs with a six-point

wrench. Coat the threads with FoMo-

Co Perfect Seal Sealing Compound or

its equivalent, and install the plugs.

Torque the drain plugs to specifica-

tion. Fluid leakage from the converter

housing may be caused by engine oil

leaking past the rear main bearing or

from oil gallery plugs, or power steer-

ing oil leakage from steering system.

Be sure to determine the exact cause

of the leak before repair procedures

are started.

Oil-soluble aniline or fluorescent dyes

premixed at the rate of 1/2 teaspoon

of dye powder to 1/2 pint of transmis-

sion fluid have proved helpful in locat-

ing the source of the fluid leakage.

Such dyes may be used to determine

whether an engine oil or transmission

fluid leak is present or if the fluid in

the oil cooler leaks into the engine

coolant system. A black light, how-

ever, must be used with the fluorescent

dye solution.
DISHED OR

FLAT WASHER

" O.D.,
a" STEEL PLATE

5/8"X \W,

DRILL TO SUIT
HEX. HEAD SCREW

3/8"-24 X Vl

HEX. NUT W—
24

WELD

TOGETHER

WING
NUT

>/2"_13
THREAD

CHAIN,
10"
LONG
RUBBER PLUG

1
Vi" DIA. X 2"

LONG Vl"

HOLE THRU

APPROXIMATELY

40 DUROMETER
FLAT WASHER

Vs" O.D.

PLUG

VALVE
STANDARD BOLT

W-13
X 4Vl"

LONG SQUARE

THREAD
END

REMOVE HEAD

AND WELD
TO

WASHER

STANDARD 1/8" FITTING-87971-S FOR

RETAPPED DRAIN PLUG THREADS-USE

1/4" OVERSIZE FITTING-87973-S

D 1067-B
WELD TOGETHER

SECURELY—MUST

NOT LEAK

FIG. 2—Converter Leak Checking Tool

CONVERTER LEAKAGE

CHECK

If there are indications that the

welds on the torque converter are

leaking, the converter will have to be

removed and the following check

made before the unit is replaced.

A leak checking tool (Fig. 2) can be

made from standard parts. The tool

can be used to check all converters.

1.
Install the plug in the converter

(Fig. 3) and expand it by tightening

the wing nut. Attach the safety chains.

2.
Install the air valve in one of the

drain plug holes.

3.
Introduce air pressure into the

converter. Check the pressure with a

tire gauge and adjust it to 20 psi.

4.
Place the converter in a tank of

water. Observe the weld areas for

bubbles. If no bubbles are observed, it

may be assumed that the welds are

not leaking.

ENGINE IDLE SPEED CHECK

Check and, if necessary, adjust the

engine idle speed, using the procedure

given in Group 10.

If the idle speed is too low, the en-

gine will run roughly. An idle speed

that is too high will cause the vehicle

to creep, have harsh engagements and

harsh closed-throttle downshifts.
ANTI-STALL DASHPOT

CLEARANCE CHECK

After the engine idle speed has been

properly adjusted, check the anti-stall

dashpot clearance. Follow the proce-

dure given in Group 10 for checking

and adjusting this clearance.

MANUAL LINKAGE CHECKS

Correct manual linkage adjustment

is necessary to position the manual

valve for proper fluid pressure direc-

tion to the different transmission com-

ponents. Improperly adjusted manual

Tire Pressure Gauge

D1921-A

FIG. 3—Converter Leak Checking

Tool Installationprocarmanuals.com

07-01-06
General Transmission Service

07-01-06

MAKE MARK HERE

BELLOWS INTACT
BELLOWS FAILED

FIG. 9—Checking Vacuum Unit Bellows

tester equipped with a vacuum pump

(Fig. 8). Set the regulator knob so

that the vacuum gauge reads 18 inches

with the end of the vacuum hose

blocked off.

Then connect the vacuum hose to

the transmission vacuum unit. If the

gauge still reads 18 inches, the vacuT

urn unit diaphragm is not leaking. As

the hose is removed from the trans-

mission vacuum unit, hold a finger

over the end of the control rod. When

the hose is removed, the internal

spring of the vacuum unit should push

the control rod outward.

ALTITUDE

COMPENSATING-TYPE

The vacuum diaphragm should be

checked for ruptured or damaged bel-

lows.
Check the diaphragm assembly

as follows:

1.
Remove the diaphragm and

throttle valve rod from the transmis-

sion.

2.
Insert a rod into the diaphragm,

making sure that the rod is buttonec

in the hole. Make a reference mark on

the rod where it enters the diaphragm

hole.

3.
Hold the assembly in such a way

that the end of the rod is resting on

the weighing surface of a scale (Fig.

9).

4.
Gradually press down on the dia-

phragm assembly until the rod is

pressed into the diaphragm body. If

the reference mark on the rod is still
visible with 12 pounds of force regis-

tered on the scale, the bellows are in-

tact. If the mark disappears before 4

pounds of force is exerted, the bellows

have failed and the diaphragm must

be replaced. If the bellows are intact,

then perform various pressure checks.

SHIFT POINT CHECKS

Check the minimum throttle up-

shifts in D. The transmission should

start in first gear, shift to second, and

then shift to third, within the shift

points specified in the specification

section.

While the transmission is in third

gear, depress the accelerator pedal

through the detent (to the floor). The

transmission should shift from third to

second or third to first, depending on

the vehicle speed.

Check the closed throttle downshift

from third to first by coasting down

from about 30 mph in third gear. The

shift should occur within the limits

specified in the specification section.

When the selector lever is at 2, the

transmission can operate only in sec-

ond gear.

With the transmission in third gear

and road speed over 30 mph, the

transmission should shift to second

gear when the selector lever is moved

from D to 2 to 1. The transmission

will downshift from second or third to

first gear when this same manual shift

is made below approximately 25 mph

with a C4 transmission, 30 mph with
D 1791.A

a C6 transmission or 35 mph with an

FMX transmission. This check will

determine if the governor pressure and

shift control valves are functioning

properly.

During the shift point check opera-

tion, if the transmission does not shift

within specifications or certain gear

ratios cannot be obtained, refer to the

Ford Car and Truck Diagnosis Manu-

al to resolve the problem.

AIR PRESSURE CHECKS

A NO DRIVE condition can exist,

even with correct transmission fluid

pressure, because of inoperative

clutches or bands. Erratic shifts could

be caused by a stuck governor valve.

The inoperative units can be located

through a series of checks by subst-

ituting air pressure for the fluid pres-

sure to determine the location of the

malfunction.

To make the air pressure checks,

drain the transmission fluid and re-

move the oil pan and the control valve

body assembly. The inoperative units

can be located by introducing air pres-

sure into the transmission case passa-

ges leading to the clutches, servos, and

governor (Figs. 10, 11 or 12).

HYDRAULIC SYSTEM BENCH

TESTS (FMX TRANSMISSION)

After the transmission has been as-

sembled and is ready for installationprocarmanuals.com

07-01-12
General Transmission Service

07-01-12

the transmission,
any
metal particles

or clutch plate
or
band material that

may have been carried into
the
cooler

should
be
removed from
the
system
by

flushing
the
cooler
and
lines before

the transmission
is put
back into serv-

ice.
In no
case should
an
automatic

transmission having
a
clutch
or
band

failure
or
other internal trouble result-

ing
in
fluid contamination,
be put

back into service without first flushing

the transmission
oil
cooler.

To flush
the oil
cooler, follow
the

instruct!
on >
provided with
the
Rotun-

da Automatic Transmission Torque

Converter
and
Cooler Cleaner
LRE-

60081.

INSPECTION

TURBINE
AND
STATOR
END

PLAY CHECK

A special tool
(Fig. 19)
must
be

used
to
check
the
condition
of the

converter. This special tool
is
used
to

check
the
turbine
and
stator
end
play

and
the
operation
of the
one-way
sta-

tor clutch.

CRUISE-O-MATIC

Too/-T58L-7902-A

C-4 AND C-6 TRANSMISSION

Tool-T59P.7902.Bor 7937-B

ON C-4 AND C-6 TRANSMISSION

Tool-T64L-7902-A
D
1499-E

FIG. 19—Converter Checking Tool

1.
Insert
the
tool (Fig.
19)
into
the

converter pump drive
hub
until
it
bot-

toms.

2.
Install
the
guide over
the con-

verter pump drive
hub.
3.
Expand
the
split fiber bushing
in

the turbine spline
by
tightening
the

adjusting
nut.
Tighten
the
adjusting

nut until
the
tool
is
securely locked

into
the
spline.

4.
Attach
a
dial indicator
to the

tool (Fig.
20 or
21). Position
the
indi-

cator button
on a
converter pump

drive
hub, and set the
dial face
at 0

(zero).

5.
Lift
the
tool upward
as far as it

will
go and
note
the
indicator reading.

The indicator reading
is the
total
end

play which
the
turbine
and
stator

share.
If the
total
end
play exceeds

the limits specified
in
Part 7-5, replace

the converter unit.

6. Loosen
the
adjusting
nut to
free

the split bushing,
and
then remove
the

tool from
the
converter.

STATOR ONE-WAY CLUTCH

CHECK

1.
Install
the
stator outer race hold-

ing tool
in one of the
four holes
pro-

vided
in the
stator (Fig.
20 or 21).

2.
Insert
the
tool
in the
converter

pump drive hub.
As the
tool enters
the

converter,
the
pins will engage
the sta-

tor clutch inner race spline.

3.
Place
a
torque wrench
on the

tool (Fig.
20 or
21).
The
tool (and
sta-

tor inner race) should turn freely

clockwise (from
the
pump drive
hub

inside
the
converter).
It
should lock
up

and hold
a 10
ft-lb pull when
the

wrench
is
turned counterclockwise.

Try
the
clutch
for
lockup
and
hold
in

at least five different locations around

the converter.
On
the
C4
or C6
Auto-

matics,
the
metal ring holding
the

locking tool will have
to be
held
by

hand during this check.

4.
If the
clutch fails
to
lock
up and

hold
a 10
ft-lb torque, replace
the

converter unit.

STATOR
TO
IMPELLER

INTERFERENCE CHECK

1.
Position
the
front pump assem-

bly
on a
bench with
the
spline
end of

the stator shaft pointing
up
(Fig.
22).

2.
Mount
a
converter
on the
pump

so that
the
splines
on the
one-way

clutch inner race engage
the
mating

splines
of the
stator support,
and the

converter
hub
engages
the
pump drive

gear.

3.
While holding
the
pump station-

ary, try
to
rotate the converter counter-

clockwise.
The
converter should
ro-

tate freely without
any
signs
of
inter-

ference
or
scraping within
the
convert-

er assembly.
4.
If
there
is an
indication
of
scrap-

ing,
the
trailing edges
of the
stator

blades
may be
interfering with
the

leading edges
of the
impeller blades.

In such cases, replace
the
converter.

STATOR
TO
TURBINE

INTERFERENCE CHECK

1.
Position
the
converter
on the

bench front side down.

2.
Install
a
front pump assembly
to

engage
the
mating splines
of
the
stator

support
and
stator,
and
pump drive

gear lugs.

3.
Install
the
input shaft, engaging

the splines with
the
turbine
hub (Fig.

23).

4.
While holding
the
pump station-

ary, attempt
to
rotate
the
turbine with

the input shaft.
The
turbine should
ro-

tate freely
in
both directions without

any signs
of
interference
or
scraping

noise.

5.
If
interference exists,
the
stator

front thrust washer
may be
worn,
al-

lowing
the
stator
to hit the
turbine.
In

such cases,
the
converter must
be re-

placed.

The converter crankshaft pilot

should
be
checked
for
nicks
or dam-

aged surfaces that could cause inter-

ference when installing
the
converter

into
the
crankshaft. Check
the con-

verter front pump drive
hub for
nicks

or sharp edges that would damage
the

pump seal.

OUTPUT SHAFT
AND

PRIMARY
SUN
GEAR SHAFT

(FMX TRANSMISSION)

1.
Inspect
the
thrust surfaces
and

journals
for
scores. Inspect
the
inter-

nal gear
for
broken
or
worn teeth.

2.
Inspect
the
aluminum sleeve
for

scores
or
leakage. Inspect
the
ring

grooves
for
burrs.

3.
Inspect
the
keyway
and
drive

ball pocket
for
wear,
and
inspect
the

splines
for
burrs, twist
or
wear.

4.
Inspect
the
output shaft sleeve

for alignment with
the
governor drive

ball (Fig.
24).

5.
Inspect
the
external parking gear

teeth
for
damage
and the
speedometer

drive gear teeth
for
burrs.

6.
If
either
the
output shaft
or
ring

gear
has
been replaced, place
the as-

sembled unit with
the
gear face down

on
the
bench, push
the
shaft down-

ward,
and
check
the
clearance
be-

tween
the top of the
snap ring
and its

groove
(Fig. 25).
If
this clearance
ex-

ceeds 0.002 inch, replace
the
snap ring

with
a
thicker ring
to
reduce
the
clear-

ance
to
less than 0.002 inch. Selectiveprocarmanuals.com

07-02-12
C4 Automatic Transmission
07-02-12

MAJOR REPAIR OPERATIONS

Before removing
any of the sub-

assemblies, thoroughly clean
the out-

side
of the
transmission
to
prevent dirt

from entering
the
mechanical parts.

During
the
repair operations, refer
to

Part 7-1
for
common adjustments
and

repairs
or
cleaning
and
inspection
pro-

cedures.

During
the
transmission disassem-

bly
or
assembly operations,
ten
thrust

washers located between
the sub-

assemblies must
be
removed
and in-

stalled.
It is
important that each

thrust washer
be in the
correct posi-

tion during
the
assembly operation.

To properly locate
and
identify
the

thrust washers,
the
various positions

of
the
thrust washers
are
shown
in the

illustrations
and are
numbered
1

through
10. No. 1 is at the
first thrust

washer located
at the
front pump.
The

last thrust washer,
No. 10, is
located

at
the
parking pawl ring gear.

DISASSEMBLY
OF

TRANSMISSION

1.
Remove
the
converter from
the

transmission front pump
and
convert-

er housing.

2.
Remove
the
transmission vacuum

unit with
the
tool shown
in Fig. 22.

Remove
the
vacuum unit gasket and

the control
rod.

GRIND OFF

SHADED AREA

TO DIMENSION SHOWN L .

SNAP-ON

Tool-FCO-24

(Reworked)

D1380-A

FIG. 22—Removing Vacuum Unit
3.
Remove
the
primary throttle

valve (Fig.
23)
from
the
opening
at the

rear
of the
case.

4.
Remove
the two
extension

housing-to-case bolts shown
in Fig. 24

and mount
the
transmission
in the

holding fixture.

5.
Remove
the
transmission
pan at-

taching bolts,
pan and
gasket.

6. Remove
the
control valve body

attaching bolts (Fig.
25).
Remove
the

control valve body from
the
case.

7.
Loosen
the
intermediate band

adjusting screw
(Fig. 26) and
remove

the intermediate band struts from
the

case.
Loosen
the
low-reverse band
ad-

justing screw
and
remove
the low-

reverse band struts.

TRANSMISSION END

PLAY CHECK

1.
To
keep
the
output shaft
in

alignment during
the end
play check,

install
the
extension housing
oil
seal

replacer tool
or a
front universal

D1861-A

FIG. 23—Removing
or
Installing

Primary Throttle Valve

Tool-T57L-500-A

or 6005-M or 6005-MS

D1862-A
joint yoke in the extension housing.

2.
Remove
one of the
converter

housing-to-case attaching bolts
and

mount
the
dial indicator
as
shown
in

Fig. 27.

3.
The
input shaft
is a
loose part

and
has to be
properly engaged with

the spline
of the
forward clutch
hub

during
the end
play checking proce-

dure.
Move
the
input shaft
and
gear

train toward
the
rear
of the
transmis-

sion case.

V*
- 20 x
V/7 INCH

V*
- 20 x 1
INCH

V*
- 20 x 1
INCH

D1863-A

FIG. 25—Control Valve Body

Attaching Bolts

INTERMEDIATE

BAND STRUTS
INTERMEDIATE BAND

ADJUSTING SCREW

I

LOW-REVERSE BAND

ADJUSTING SCREW
LOW-REVERSE

BAND STRUTS
D
1384-B

FIG.
24—Transmission
Mounted

in Holding Fixture
FIG. 26—Band Adjusting Screws

and Struts—Typicalprocarmanuals.com

07-03-02
FMX Transmission

07-03-02

COMPONENT INDEX

OIL PAN

Assembly

Removal and Installation

OUTPUT SHAFT

Assembly

Inspection

OUTPUT SHAFT BUSHING

Disassembly and Overhaul

PARKING PAWL

Removal and Installation

PRESSURE REGULATOR

Assembly

Disassembly and Overhaul

Inspection

Removal and Installation

PRIMARY SUN GEAR SHAFT

Disassembly and Overhaul

Inspection

REAR BRAKE DRUM SUPPORT BUSHING

Disassembly and Overhaul

REAR CLUTCH

Assembly

Disassembly and Overhaul

Inspection
Page
03-29

03-11

03-26

01-11

03-17

03-13

03-28

03-21

01-16

03-12

03-18

01-11

03-17

03-26

03-18

01-15
REAR SERVO

Assembly

Disassembly and Overhaul

Inspection

Removal and Installation

REAR SUPPORT

Assembly

Inspection

REAR SUPPORT BUSHING

Disassembly and Overhaul

SELECTOR LEVER-CONSOLE SHIFT

Removal and Installation

THROTTLE LINKAGE

Adjustment

Parts Repair or Replacement

TRANSMISSION (Complete)

Removal and Installation

TRANSMISSION CASE BUSHING

Parts Repair or Replacement

TRANSMISSION CASE LINKAGE

Parts Repair or Replacement

VACUUM DIAPHRAGM UNIT

Assembly

Adjustment

Checking
Page
03-28

03-24

01-16

03-12

03-28

03-15

03-21

03-08

03-05

03-05

03-14

03-26

03-25

03-29

01-07

01-04

DESCRIPTION

DESCRIPTION

Figure 1 shows the location of the

converter, front pump, clutches,

bands,
gear train and most of the in-

ternal parts used in the FMX Trans-

mission

The identification tag (Fig. 2) on an

FMX transmission is attached under

the oil pan by a pan to case bolt. The

tag includes the model prefix and suf-
fix, assembly part number and the

build date code.

The service identification number

indicates changes to service details

which affect interchangeability when

the transmission model is not

changed. For interpretation of this

number, see the Master Parts Catal-

og-

The tag must be kept with the indi-

vidual transmission it was originally
installed on. If the tag was removed

during disassembly, reinstall it on the

same unit.

The FMX transmission is a three

speed unit capable of providing auto-

matic upshifts and downshifts through

the three forward gear ratios, and also

capable of providing manual selection

of first and second gears.

The transmission consists essentially

of a torque converter, planetary gear

train, two multiple disc clutches and a

hydraulic control system (Fig. 3).
procarmanuals.com