brake light JEEP CJ 1953 Service Manual

'Jeep*
UNIVERSAL SERIES
SERVICE
MANUAL

B
LUBRICATION
AND
PERIODIC SERVICES

Contents
PAR. SUBJECT
PAR.
SUBJECT

GENERAL
.B-l
Chassis
Lubrication
B-7
Engine
Lubrication System B-4, B-6

Special
Lubricants B-2

Fresh
Lubricant.
.B-3

LUBRICATION CHARTS
. Pages 8, 9

SERVICE
MAINTENANCE SCHEDULE.
.B-8
Air
Cleaner
B-2
5,
B-2
6
Air
Filter
—
F.E.E.C.
System Canister
B-2
4

Axle
U-Bolts B-49 Body
Lube
Points: B-65 Hood Hinge Pivot Points B-66

Glove
Compartment Door
Latch
B-6
7
Tailgate Hinges .B-68

Brakes,
Adjust .B-41
Brake
Linings .B-42

Brake
Master Cylinder B-40
Charging
Circuit
B-l9
Clutch
. B-43, B-44
Cooling System—Radiator. B-28, B-29 Differentials
........
.B-50, B-51, B-52, B-53

Distributor
B-14, B-l5

Engine
Oil B-9
Engine
Oil
Filter
B-10, B-ll

Engine
Tune-Up B-20
Exhaust
Emission Control System
B-2
2

Exhaust
Manifold Heat Control Valve. . . .B-l2

Exhaust
System
B-2 3
Fan
Belt . .B-21
Front
Axle U-Joint B-54, B-55

Generator
.B-16
Headlights B-61
Heater Controls B-62
Lights
and Controls B-59 Positive Crankcase Ventilation Valve. . . .B-l3
Shock Absorbers B-48
Spark
Plugs. B-17
Speedometer Cable. .B-60

Spring
Bushings.. . .B-46

Spring
Shackles .B-47
Steering
Gear
B-2 7
B-l. GENERAL
All
'Jeep' Universal vehicles require periodic
lubri­

cation and other maintenance services for normal
vehicle
usage
and application to promote satis­ factory operation and prevent
excessive
wear. Un­
der severe operating or atmospheric conditions
these
services should be performed more
often
than
under normal conditions. It should also be remem­
bered that common short trips and
stop-and-go
driving
are more severe on lubrication
points
than
Starting
Circuit
B-l8

Tie
Rod and Drag
Link
Sockets
.
B-45

Tires
B-64

Transmission
and Transfer Case—
Lubricant
Level
Check B-30

General
B-31

Transfer
Case B-32
Transmission
.B-33

Transmission
and Transfer
Case
—

Lubricant
Change .B-34
General
.B-35

Transfer
Case B-36
Transmission
B-3
7, B-38

Transfer
Case Linkage B-39

Universal
Joints and Slip Joints.
.......
.B-58

Wheel
Bearings..
.........
. . .B-56, B-57
Windshield
Wiper and Washer B-63

LUBRICATION
OF

OPTIONAL EQUIPMENT
B-69
Centrifugal
Governor. .B-71
Pintle Hook .B-70

Powr-Lok
or
Trac-Lok
Differential B-72

PARTS REQUIRING
NO LUBRICATION.
. . .B-73

Alternator
Bearings. B-76
Clutch
Release Bearings.
.............
.B-74
Shock Absorbers B-78
Springs
B-7
7
Starter
Motor Bearings B-75

Water
Pump Bearings B-74

LUBRICATION REQUIREMENTS FOR OFF-HIGHWAY OPERATIONS
B-79

Air
Cleaner B-82

Chassis
Lubrication
B-83

Engine
Oil B-80
Engine
Oil
Filter
B-81
Differentials .B-86
Front
Axle U-Joints. B-84
Transfer
Case and Transmission .B-85
constant
speed
driving on highways, and even more
intensified in extreme cold or hot weather; there­ fore, vehicles driven under
these
conditions must
be lubricated and serviced more
often
than nor­ mally operated vehicles. The specifications of
types
and
amounts of lubricant given in the Lubrication

Chart
and
text
of this section should be closely
followed. The off-highway operation lubrication
notes,
given in the last part of the section, should
be followed when applicable. 7

*Jeep?
UNIVERSAL
SERIES
SERVICE
MANUAL

FIG.
B-2—LUBRICATION
CHART
—
2-WHEEL
DRIVE
VEHICLES

CHART
NO
ITEM
TO BE

LUBRICATED
FREQUENCY

1000 miles = 1.600 km.
QUANTITY

U.S.
Imperial Metric
LUBRICANT

TYPE
Summer I Winter

Chassis
Bearings.....

Universal
Joints...... Steering
Gear
Housing

Rear
Wheel Bearings fx

Front
Wheel
Bearings®

Transmission

Differential

Hand
Brake Control Handle Cable

Hand
Brake Control
Cable
Rear

Generator — F4

Speedometer
Cable....
Distributor — F4
Oiler

Wick

Pivot
Cam

Distributor Cam — V6.

Air
Cleaner — F4
—
V6.
....

Engine
— F4

Engine
— V6
Each
2,000
miles

Each
2,000
miles

Check
each
2,000
miles

With
Lube Fittings;
Sparingly each
2.000
miles
Without Lube Fittings: Disassemble to Lubricate
each
12,000
miles
Disassemble to lubricate each

12,000
miles

Check
each
2,000
miles
Change each
20,000
miles

Check
each
2,000
miles Change each
12,000
miles

Each
12,000
miles

Each
12,000
miles

Each
2,000
miles Disassemble to lubricate each
12,000
miles

Each
2,000
miles
Each
2,000
miles

Each
2,000
miles

Each
2,000
miles

At
each breaker point replacement
Each
2,000
miles
Each
6,000
miles
Change each
2,000
miles or 60 days Change each
6.000
miles or 60 days
As
required

As
required

As
required

As
required

As
required
1 XA pts. 114 pts. 0,7 ltrs. 2 pts. 1 % pts. 0,9 ltrs.

As
required

As
required
2 to 4 Drops
As
required

Several
Drops One Drop
One Drop
2 c.c.

As
required
1
M
pts. 1 pt. 0,6 ltrs.
4 qt.** 3 H qts. 3,8 ltrs. 4 qt.** 3
}A
qts. 3,8 ltrs.
Chassis
Lubricant

Chassis
Lubricant
MIL-L-2105-B

Wheel Bearing Lubricant
Wheel Bearing Lubricant
GL4

MIL-L-2105-B*

Graphite
Grease

Graphite
Grease
Engine
Oil

Graphite
Grease

Engine
Oil

Engine
Oil

Engine
Oil

Cam
Lubricant

Cam
Lubricant

Engine
Oil

Engine
Oil

Engine
Oil No. 1 No. 1
No. 1 No. 1

SAE-80 SAE-80
No. 2 No. 2
No. 2 No. 2

SAE-90 SAE-80
SAE-80 SAE-80

Medium Medium
Medium Medium Same as
engine
Light

Same as
engine

Same as
engine

Same as
engine

SAE-40
or 50

®
Above
90°F.
Between -f
10°F.
and
90°F.
Between
-10°F.
and
-fl0°F.
Below
-10°F.
use SAE 30 or 10W-30 use SAE 20W or 10W-30 use SAE 10W or 10W-20 use SAE 5W or 5W-20

BE
St
Not lower than
32°F.
[08C] Between
32°F.
10°C] and 0°F.
l-17°CI
Below 0°F. [-17°C] use SAE 20W or SAE 10W-30 use SAE 10W or SAE 10W-30 use SAE 5W or SAE 5W-20

•For
Powr-Lok and
Trac-Lok
differential use only 'Jeep' Differential Oil, Part No.
94557.

**When oil filter is changed at the same time, add one quart {one
ltr.].
(x)Do not mix lithium and sodium
base
lubricants. Use lithium
base
lubricants as specified. 9

B
LUBRICATION B-3.
SERVICE
MAINTENANCE
SCHEDULE

Perform
the following operations at the mileage shown. Two thousand miles equals
3,200
km.

SERVICE
MAINTENANCE
SCHEDULE

OPERATION
VEHICLE
^ n>
MILEAGE
IN
THOUSANDS

6 8 10 12 24 30
Check Wheel Nut Torque*
Check
Fluid
Level
in Battery X Check
Fluid
Level
in Brake Master Cylinder0. X
Service
Cooling
System X Service Tires X

Lubricate
Distributor
Cam Lubricator (F4-134) X
Lubricate
Steering Linkage X

Lubricate
Propeller Shaft Universal Joints X

Lubricate
Propeller Shaft
Slip
Joints ; X
Lubricate
Tie Rod and Drag
Link
Sockets................................... X Change Engine
Oil
and
Filter,
and Service Air Cleaner (F4 134 Engine)** X
Change Engine Oil and
Filter,
and Service Air Cleaner (V6-225 Engine)**....
Check Brake Operation and Pedal
Free
Play X Check
Clutch
Pedal
Free
Play. .... X
Check all
V-Belt
Tensions X
Check Exhaust Emission System
(If
so equipped)*** \ X
Service Positive
Crankcase
Vent
Valve
and Breather . .' X
Road Test
Including
a Check of all Instrument
Lights
and Controls X Tune-up Engine
Check Operation of
Manifold
Heat
Control
Valve

Clean
Exterior of Radiator

Align
Headlights • Check Brake
Linings
,
Check Exhaust System for Leaks Replace Canister Air
Filter
(F. E. E. C. System)
Check
Axle
U-Bolt
Torque. Check Lubricaunt
Level
of Front
Axle
Universal Joints
Check Shock Absorber Mountings and Bushings Check Front and
Rear
Spring Bushings

Lubricate
Distributor
(V6-225).
Replace Spark, Plugs
Check Charging and Starting Circuits
Lubricate
Tailgate Latch, Supports and Hinges.

Lubricate
Door and
Hood
Hinge Pivots ;
Lubricate
Glove Compartment Door Latch

Lubricate
Heater Controls •

Lubricate
Windshield
Wiper and Washer Controls
Clean,
Repack and
Adjust
Wheel Bearings
Change Transmission and Transfer Lubricant. .
Replace
Dry-Type
Air Cleaner • Check Lubricant
Level
of
Differential

Lubricate
Transfer
Case
Shift
LeArer
Control
C«se.
. , . . . . . . . .
Continuing
each
2,000 miles

Continuing
each
6,000 miles

Continuing
each
24,000 miles

X
Continuing
each
30,000 miles
•Check after the
first
200 miles [320
km.
J
of operation.
If
wheel or wheels are changed for any
reason,
have
wheel nut torque rechecked after an additional two hundred miles of operation
••Service mileage shown or every 60 days, whichever occurs
first.

•••Maintenance check on emission system must be performed per
information
in this manual. "See text for brakes.

"Nj
^Miles
2,000
6,000
12,000
18,000
24,000
30,000
Kilometers

3,200
9,600
19,200
28,800
38,400 48,000

B-9.
Engine Oil

For
maximum
engine
protection under all driving conditions encountered during the recommended

oil
change intervals, it is necessary to use only

"MS"
certified
sequence-tested
oils. The term
"MS"
must appear on the oil container singly or

in
conjunction with other designations. "MS" des­
ignated oils are heavy-duty detergent oils that are
formulated to withstand all service conditions in
modern powerplants. Engine oils designated only
as
"ML"
and/or
"MM"
are not recommended and should not be used except in an emergency when

"MS"
oil is not available. Certified
sequence-tested

engine
oils are described on their containers by

such
phrases as:
meets,
exceeds,
excels, or has
proven superior in the
test
requirements,
test
sequences, MS Service
tests,
standards, and service

requirements,
of automotive manufacturers, auto­
makers,
or car manufacturers for MS service or
Service
MS.
It
may be necessary to change
engine
oil more
frequently than normally recommended, depending upon the type and quality of oil used, the severity
of operation conditions, if the
engine
is used for
short
periods in cold weather, or if the
engine
is allowed to idle for excessive periods.

Always
drain
the crankcase while the
engine
is hot since
dirt
and contaminants are then more
likely
to be held in suspension and therefore
will

drain
out more completely.
Drain
the crankcase as follows:

a.
Position the
drain
receptacle under the
drain

plug.

b.
Remove the
drain
plug using the correct size

wrench.
Be careful of hot oil.
c.
Carefully
clean the
drain
plug. Inspect and

replace
the gasket, if deteriorated.
d.
When the oil has drained, replace and tighten
the crankcase
drain
plug. 12

B

LUBRICATION
Note:
Hard
shifting of the transmission gear in
cold weather is a positive indication that the
lubri­

cant
is of the wrong viscosity or of poor quality

which
allows it to congeal.

B-38.
Optional
4-Speed
Transmission
and
Transfer Case

The
four-speed transmission and transfer case re­

quire
separate lubrication for each unit as
they
have no cross-over oil passage. At each transmission
service check, the
fill
plugs of
both
four-speed

transmission
and transfer case should be pulled
and
the lubricant refilled to level if necessary.

B-39.
Transfer
Case
Linkage

The
transfer case shift linkage should be lubricated

periodically.
All
bearing surfaces that are assembled
with
studs and cotter pins should be disassembled, cleaned, and coated with a
good
waterproof grease.

The
bearing surfaces that cannot be disassembled
should be lubricated with a lubricant that
will
penetrate the bearing
area.
These bearings include
the two on the cross shaft assembly and the
threaded stud.

The
type
of penetrating lubricant recommended is
DuPont
"PM 7", No. 2911, or its equivalent.

B-40.
Brake Master Cylinder

Clean
the top of the
fill
cap and also the housing

area
around it. Remove the cap and observe the
fluid
level. It should be
half
an inch
below
the top
of the fill-hole. If not, add brake fluid to
half
inch
[1,3 cm.]
below
the top of the fill-hole. Use
only heavy-duty brake fluid conforming to speci­
fication
SAE-J-1703.
Be sure to handle the brake

fluid
in clean dispensers and containers that
will
not introduce even the
slightest
amount of other

liquids
or foreign particles. Replace and tighten
the
fill
cap.

B-41.
Adjust Brakes

Refer
to Section P.
B-42.
Brake Linings

Refer
to Section P.

B-43.
Adjust Clutch

Refer
to Section I.

B-44.
Clutch Cross Shaft (Lever Type)

Lubricate
the clutch cross shaft in accordance with
specifications given in the
Lubrication
chart: see
Item
1. Chassis Bearings.

B-45.
Tie Rod and Drag
Link
Sockets

The
tie rod and drag
link
sockets
are equipped

with
lubrication
fittings
and should be lubricated

per
specifications given in the
Lubrication
chart: see Item 1. Chassis Bearings.
B-46.
Front
and
Rear Spring
Bushings

The
condition of the spring bushings is indicated
by the alignment of the spring pivot and spring
shackle
bolts.
Check
the alignment of
these
bolts,

and
check that nuts are
tightened
securely.

B-47.
Spring
Shackles

Rubber
bushings are provided on the spring
shackles.
These rubber bushings have no lubrication
fitting and it is very important that
they
never be lubricated.

B-48.
Shock Absorbers

Visually
check for broken mounts or bolts, worn

or
missing bushings on the shock absorbers. Refer
to Section S.

B-49.
Front and
Rear
Axle
U-Bolts

Torque
the front and
rear
axle U-bolts. Refer to Section S.

B-50. Front
and
Rear
Axle
Differentials
—
Lubricant Levels

The
lubricant
level of all front and
rear
differentials should be at the level of the fill-hole.

B-51.
Front and
Rear
Axle
Differentials
—
Changing
Lubricant
B-52.
Conventional Differentials

To
remove the lubricant from the front or
rear
differential,
it is necessary to remove the housing cover. Let the lubricant
drain
out, and then flush
the differential with a flushing oil or light
engine

oil
to clean out the housing
(except
Powr-Lok
or
Trac-Lok
Differentials). Do not use water, steam,
kerosene, or
gasoline
for flushing.

Reinstall
the housing cover, replacing the gasket whenever necessary, torquing the cover
bolts
to 15 to 25 lb-ft. [2,1 a 3,4 kg-m.].
Remove the filler plug, and
refill
the differential
housing as specified in the
Lubrication
Specifica­
tions.

B-53.
Powr-Lok
or
Trac-Lok Differential

Some vehicles may be equipped with the
Powr-Lok

or
Trac-Lok
Differential as optional equipment.
Special
lubricant and ordinary multipurpose gear

lubricants
must
not be used. Use only
'Jeep*
Differ­

ential
Oil,
Part
No. 94557.

Powr-Lok
or
Trac-Lok
differentials may be cleaned
only by disassembling the unit and wiping with
clean
rags. Do not flush the unit. Refer to Sec­
tion N.

B-54.
Front Axle Universal Joint
—
Lube

Check
the level of the front axle universal joint
lubricant
at each front wheel by removing the
fill-hole plug. The lubricant should be level with
the fill-hole. If required, add lubricant as specified

in
Lubrication
Specifications.

B-55.
Front
Axle
Universal
Joint
— Service

On
all 4-wheel drive vehicles the front axle
uni­

versal
joint should be serviced by removing the shaft and thoroughly cleaning the universal joints

and
housing. For the correct procedures, refer to
Section M. 16

'Jeep'
UNIVERSAL SERIES SERVICE
MANUAL

B
Reinstall
the axle shafts, and
refill
the housings to
plug level using the universal joint lubricant
specified in
Lubrication
Specifications.

B-56.
Front
Axle Wheel Bearings

To
lubricate the wheel bearings, it is necessary
to remove, clean, repack, and adjust them. When
front wheel hubs and bearings are removed for
lubrication,
they should be thoroughly washed in a
suitable cleaning solvent. The bearings should be
carefully
dried and then given a thorough cleaning

and
inspection. Use a clean brush to remove all

particles
of old lubricant from bearings and hubs.

After
the bearings are cleaned, inspect them for
pitted races and rollers. Also, check the hub oil
seals.

Note:
Wheel bearing lithium base lubricants are
used at the factory for
initial
fill
of
these
bearings.
When
lithium base and sodium base lubricants are

mixed,
the result is a thinned-out mixture that
can
bleed through seals. It is therefore important
that lubricants with the correct base be used when

lubricating
the wheel bearings.
Should
leaks occur at wheel bearing seals, the leaks

may
be caused by a mixture of two
types
of
lubri­

cants.
In such cases, the old lubricant should be
completely removed before new lubricant is added.

Wheel
bearings should be thoroughly cleaned,
lubricated
with lithium base and reinstalled.

Repack
the bearing
cones
and rollers with grease

and
reassemble hub in the reverse order of the
disassembly. Test the bearing adjustment as out­

lined
in Section Q.

B-57.
Rear
Axle Wheel Bearings

The
Rear
wheel bearings an early models equipped

with
lubrication fittings with a vent opening
through the housings above each fitting should be
lubricated
sparingly, each
2,000
miles
[3.200
km.].

Use
a hand compressor and wheel bearing grease,
forcing
the grease through each lubrication fitting

until
it flows from the vent. Vent should be kept
clear
of obstruction or grease
will
back up into the

brakes.
Do not add grease after it flows from the
vent for it may be forced through the wheel key-
way
onto
the outside of the wheel and possibly

onto
the brake linings.
Rear
wheel bearings that do
not have lubrication fittings should be removed
each
12,000
miles
[19.200
km.] and the bearing
cleaned, inspected and repacked. Refer to proce­

dure
in Par. B-56.

Note:
When servicing the Flanged Axle Unit
Bear­

ing Assembly, refer to Section N, Par. N-5 for

proper
lubrication procedures.

B-58.
Propeller Shafts
and
Universal Joints

The
propeller shaft slip joints and universals should
be lubricated with a hand compressor grease gun so as to not damage the bearing seals. The units
should be lubricated with a
good
quality grease.

Refer
to the
Lubrication
Chart
for lubrication fre­
quency and lubricant type and grade. B-59.
Lights
and
Controls

a.
Check
all interior and exterior lights and light
switches for proper operation, including: parking
lights, headlamps (high beam and low beam),

tail
lights, brake lights, directional lights, and in­ strument panel lights.

b.
Check
all instrument panel controls and
instru­

ments for proper operation.

B-60.
Speedometer Cable

Remove the
speedometer
cable from its housing every
12,000
miles
[19.300
km.].
Clean
it thor­
oughly and coat it with a
good
quality light graphite grease.

B-61.
Headlights

Refer
to Section H.

B-62.
Heater Controls

Apply
Lubriplate
130-A to all friction points and
pivot points on the heater controls panel unit as well as the pivot points at the dashpot. Apply

a
few drops of penetrating oil all along the Bowden
cable.
This
oil
will
penetrate into the center wire.

B-63.
Windshield Wiper and
Washer Controls

Lubricate
the friction points and the pivot points
on the windshield wiper transmission and linkage

arms
with a slight amount of
Lubriplate
130-A.

B-64.
Rotate Tires

Refer
to Section Q for the correct method of rotat­ ing the tires.

B-65.
Body Lube Points
•
Refer to Par. B-66 through B-68.

B-66.
Hood Hinge Pivot Points

Lubricate
the frictional points of the hood hinge
pivot points with a few drops of light-weight
engine

oil.
B-67.
Glove Compartment Door Latch
Sparingly
wipe
Lubriplate
130-A on the
glove
com­
partment door latch.

B-68.
Tailgate Hinges

Lubricate
the friction points of the tailgate hinges

with
a few drops of light-weight
engine
oil.

B-69.
LUBRICATION
OF
OPTIONAL EQUIPMENT

B-70.
Pintle Hook

When
lubricating the vehicle, place a few drops of oil on the pintle hook and safety latch pivot pins.

B-7!.
Centrifugal Governor

Check
the oil level in the governor housing at each
vehicle lubrication. Use the same seasonal grade
oil
as is used in the
engine
and change oil at each

engine
oil change. Do not
fill
the housing above
the level indicating plug opening. Keep the vent

in
the filler plug open at all times. 17

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL
H

FIG.
H-52—MAIN
LIGHT SWITCH (LATE)
1—
Circuit
Breaker

2—
Light
Switch

3—
Rear
Lights

4—
Head
Lights
5—
Parking
Lights
The
light switch shown in
Fig.
H-51 was superseded
by the one shown in
Fig.
H-52.

H-127.
Headlight Dimmer Switch To
remove the headlight dimmer switch, first raise
the hood and disconnect the wires attached to the

switch.
Then
remove the two screws that hold the

dimmer
switch to the floor board. Remove the

switch.
Check
the operation of the dimmer switch

with
a
test
light. A
circuit
across two different pairs of contacts (one to headlights, the other to the
high-beam indicator light) should alternately light
the
test
lamp when the switch is operated.
H-128.
Stop Light Switch
The
stop
light switch is of the diaphragm type.

Should
the switch
become
inoperative, it is neces­

sary
to install a new one.
Current
production vehicles are equipped with two
stop
light switches
that operate independently of each other. Both
switches are located along the
left
side of frame, in the front and
rear
brake lines.

Caution:
Do not apply the brakes while making
this exchange as air may enter the hydraulic line.
Bleed
the brakes after replacing the switch.

Fig.
H-54 shows the wiring of the
stop
light
circuit.
11500

FIG.
H-53—STOP
LIGHT SWITCH
FIG.
H-54—STOP
LIGHT CIRCUIT

1— Stop
Light
Switch
2—
Light
Switch

3—
Tail
Light
H-129. Head Lamp Service

H-130.
Head Lamp Replacement

Refer
to Fig. H-59.

Each
sealed beam head lamp can only be replaced as a
complete
unit.

A
sealed beam unit may be replaced by the fol­ lowing procedure:

a.
Remove door screw.

b.
Remove door.

c.
Remove retaining screws and retaining
ring.

d.
Remove sealed beam unit.
Installation
of sealed beam unit is the reverse of
above procedure. When replacing head lamps,

check
lamp aim following procedures described in

Par.
H-132.

FIG.
H-55—PARKING
LIGHT (EARLY)

1—
Bezel

2—
Lens

3—
Bulb

4—
Gasket
5—
Housing
and Cable

6—
Screw
213

H

ELECTRICAL
SYSTEM
H-152.
ELECTRICAL
SPECIFICATIONS—Continued

HURRICANE DAUNTLESS
V-6
DAUNTLESS
V-6 ENGINE
MODEL -
F4
ENGINE
ENGINE
LATE
MODELS

EARLY
MODELS
IGNITION
COIL
BALLAST
]Make Delco-Remy
Prestolite Prestolite
Model
None

1957154

PU
5003

PU
5003

Ohms • • 1.80 @
80°F.

.495 - .605 @
75°F.

.495 - .605 @
75°F.

1.80 @
80°F.

.638 - .835 @
212°F.
.638 - .835 @
212°F.

DISTRIBUTOR:
Prestolite Delco-Remy Prestolite Prestolite
Model
•
(a)
LAY
4012, 4401

1110376

I
AT
4501 or
IAT
4502A
(b)
I
AY
4401A, 44011

IAT
4502

Breaker
Point Gap (b)
.020"
[0,508
mm.] .016"
[0,406
mm.] .016"
[0,406
mm.]
.016"
[0,406
mm.]

Breaker
Arm Tension. ..... 17 to 20 oz.
19 to 23 oz. 17 to 22 oz. 17 to 22 oz.
[482 a 567 gr.] [538 a 652 gr.] [482 a 624 gr.]
[482 a 624 gr.]

42° 29°
to 31°
29°
±3°
29°
±3°

Max.
Auto Advance
(Crankshaft
Degrees) •(a)
11°
@ 1,700 rpm.

13°
to
15°
at 1,950 rpm.
16°
@ 1,800 rpm.
21°
(2 1,800 rpm.

(Crankshaft
Degrees)
(b)
13.5°
@ 1,700 rpm.

26°
@
4200
rpm.
32°
@
4200
rpm.

Max.
Vac. Advance go
(Distributor Degrees)., . .
None

8° 8°
go
Condenser Capacity. . .25 to .28 mfd. .18 to .23 mfd. .25 to .28 mfd. .25 to .28 mfd.

TIMING:
Crankshaft
See
Note

See
Note
See
Note
See
Note

Mark
Location............
Crankshaft
Pulley

Crankshaft
Pulley

Crankshaft
Pulley

Csankshaft
Pulley

Firing
Order
1-3-4-2

1-6-5-4-3-2
1-6-5-4-3-2 1-6-5-4-3-2

SPARK PLUGS:
Make
Champion

A.C. A.C.
or Champion
A.C.
or Champion

J8
44S
44S or UJ 12Y 44S or UJ 12Y

Thread
14 mm.
14 mm. 14 mm. 14 mm.

Thread
Reach
Vz"
[9,47 mm.]
%"
[9,47 mm.]

¥%"
[9,47 mm.]
V8" [9,47 mm.]

Gap
.030"
[0,762
mm.]
.035"
[0,900
mm.] .035"
[0,900
mm.] .035"
[0,900
mm.|

LAMP BULB TRADE
NUMBERS:

Headlight 6012
6012 6012 6012

Parking
and Directional Signals. 1157NA
1157NA 1157NA 1157NA

License
Plate Light........ 1155
1155 1155 1155

Marker
and Reflector 194
194 194 194

INDICATOR LIGHTS:
57 57 57 57
Directional Signals........ 57
57 57 57

Charge
57
57 57 57
57 57 57 57
1156 1156 1156 1156
Instrument Cluster 57 57 57 57

Warning
— 4 Way Flasher. . 57
57 57 57

Brake
Warning Light 57
57 57 57

FUSE
DATA:
Heater 9 amp. 9 amp. 9 amp. 9 amp.

Backup
14 amp. 14 amp. 14 amp. 14 amp.

WS/Wiper.
14 amp. 14 amp. 14 amp. 14 amp.
Directional Signal 9 amp. 9 amp. 9 amp. 9 amp.
4-Way Flasher 14 amp. 14 amp. 14 amp. 14 amp.

Brake
Warning Light 9 amp. 9 amp. 9 map. 9 amp.

FLASHER
DATA:
Directional Signals. 144
144 144 144

Hazzard
Warning. 170
170 170 170

NOTE:
0°
T.D.C.
on Distributor
models
IAY 4401A, IAY 4401B, IAT 4502A.

NOTE:
5°
B.T.C.
on Distributor
models
IAY 4012, IAY 4401, IAT 4501, IAT 4502,
1110376.
224

K

TRANSFER
CASE
the brake drum and companion
flange
by remov­
ing bolts, lockwashers, and nuts.

b.
Remove the oil seal with Tool W-251, as shown

in
Fig. K-7.

c.
Remove
speedometer
driven gear assembly.

d.
Remove the cap screws attaching the cap and
brake
backing plate to the case.
Take
precautions
not to
lose
or damage bearing adjusting shims placed
between
the cap and the transfer case
housing.
e. Separate the
rear
cap and brake backing plate
assembly. See Section P for brake service pro­
cedures.
f. Remove
speedometer
driving gear.

K-6.
Transfer
Case
Reassembly
•
Refer to Fig. K-1, K-2.

Reassembly
of the transfer case is reversal of the

foregoing
procedure of disassembly. The output shaft snap ring may
best
be installed with Tool
FIG.
K-11—OUTPUT
SHAFT
SNAP

RING
INSTALLER
1—
Snap
Ring

2—
Snap
Ring
Installer Tool W-131
FIG.
K-12—OUTPUT
SHAFT
OIL
SEAL
DRIVER

1—
Driver
Tool W-143

2—
Seal
W-131,
output shaft snap ring installing thimble

and
driver,
shown in
Fig.
K-ll.
Use a
piece
of tub­
ing for installing the bearing
cone
and roller as­ semblies on the output shaft to prevent damage
to the assemblies.

Early
production transfer cases were equipped with
a
lVs" [2,86 cm.] diameter intermediate shaft

and
caged
needle
bearings. When installing the intermediate gear in early production transfer cases,

insert
the bearings in the gear, support the front

thrust
washer with Pilot Pin Tool W-192,
Fig.
K-10,
position the gears and
rear
thrust washer, and
insert
the shaft from the
rear
of the case.

Late
production transfer cases were equipped with
a
1
Vi"
[3,18 cm.] diameter intermediate shaft,

and
bearings consisting of individual rollers and
spacers.
A dummy shaft is required to install the
intermediate shaft. The dummy shaft should be slightly smaller in diameter than the intermediate
shaft and a little shorter than the width of the
intermediate gear. To install the intermediate gear,

first
load the bearing rollers and spacers in the gear using the dummy shaft.
Then
supporting the
front thrust washer with the fingers, position the gears and
rear
thrust washer and insert the shaft

from
the
rear
of the case, driving out the dummy
shaft.

Should
it be necessary to replace the
speedometer

driven
pinion bushing installation may be
best

made with bushing installer Tool W-133, shown
in
Fig. K-13. When the
rear
bearing cap assembly
is installed, check the end
movement
of the main-
shaft which determines the adjustment of the
tapered roller bearings. For correct bearing adjust-
|
11S4S

FIG.
K-13—SPEEDOMETER
PINION
BUSHING
DRIVER
1—Tool W-133
272

'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL

m f. Disconnect propeller shaft from the differential
companion flange.

g.
Disconnect both front springs from front spring hangers.

h.
Remove spring clip and spring clip plates secur­
ing axle to front springs.

i.
Remove front
wheels
from axle assembly.

j.
Lower
jack
slightly and
pull
axle forward from
under
vehicle.
M-5.
FRONT AXLE SHAFT REMOVAL

Refer
to Fig. M-2.

The
following procedure applies to either right or
left
front axle shaft.

Note:
Axle shafts can be removed without remov­
ing the axle housing from the vehicle. Use the fol­
lowing procedure.
First
raise and support front end
of vehicle, and remove front wheels.

a.
Remove drive
flange
snap
ring.
b-
Remove the hub cap with a puller as shown in

Fig.
M-3.

c.
Remove the axle shaft driving
flange
bolts.

d.
Apply the
foot
brakes and remove the axle shaft
flange
with puller W-163 as illustrated in

Fig.
M-4.
FIG.
M-4—AXLE
SHAFT
DRIVE
FLANGE
PULLER

1—Too!
W-163
e.
Release the locking lip on the lockwasher and
remove the outer nut, lockwasher, adjusting nut

and
bearing lockwasher. Use wrench W-144, Fig.

M-5,
for removal of the nut.
f- Remove the wheel hub and drum assembly

with
the bearings. Be careful not to damage the

oil
seal.
FIG.
M-5—WHEEL
BEARING
NUT
WRENCH

1—Tool
W-144
g.
Remove the hydraulic brake
tube
and the

brake
backing plate screws.

h.
Remove the spindle.
i.
Remove the axle shaft and universal joint as­
sembly.
M-6.
Removing
and
Overhauling Differential

Adjustment
and overhaul of the front axle differen­
tial
assembly is the same as that of a
full
floating

type
rear
axle. Information covering dismantling

and
assembling of this
type
differential is contained
in
Section N.

NOTE:
All service replacement axle assemblies

are
shipped from the factory without lubricant in
the differential.
Lubricant
must be added to the
differential
before
the axles are installed in vehicles.

Use
the grade and quantity of lubricant specified
in
the lubrication section.

After
the axle has
been
installed in the vehicle,

check
to be sure the lubricant level in the dffer-

ential
is level with the
fill
plug opening.
M-7.
AXLE SHAFT UNIVERSAL JOINT SERVICE

Refer
to Fig. M-6 and M-7.

After
the axle shaft and universal joint assembly have
been
removed, the
Cardan
cross universal

joint
can be disassembled and inspected as follows:

a.
Remove the snap rings from the bearing cup assemblies.

b.
Press on the end of one bearing cup assembly

until
the
opposite
bearing is pushed from the yoke

arm.
Turn
the yoke over and press the first bear­ ing back out of that
arm
by pressing on the
exposed

end of the
journal
shaft. To avoid damaging the 279

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

M
If
the joint binds when assembled, tap the yoke
lightly to relieve any pressure on the bearings at the end of the
journal.

M-8-
Steering
Knuckle
Service

The
steering knuckle pins pivot on tapered roller
bearings. Replacement of
these
bearings requires

removal
of the hub and brake drum assembly,
wheel bearings, axle shaft, spindle, steering tie rod,

and
steering knuckle. Disassemble the steering
knuckle
as follows:
Remove the
eight
screws which hold the oil seal

retainer
in place. Remove the four screws holding
the lower pivot pin bearing cap. Remove the four screws holding the upper bearing cap in place. Re­
move
the bearing cap. The steering knuckle can
now be removed from the axle. Wash all parts in cleaning solvent. Replace any damaged or worn

parts.
Inspect the bearing and races for scores,
cracks,
or chips. Should the bearing cups be damaged,
they
may be removed and installed with

Special
Driver
W-138, as shown in Fig. M-9.
M-9.
Reassemble
and
Bearing Preload

Reverse
the procedure of Par. M-8 to reassemble
the unit. When reinstalling the steering knuckle, sufficient shims must be installed under the top

bearing
cap to obtain correct preload on the bear­
ing.
Shims are available in
these
thicknesses: .003"
[0,076
mm.] .010"
[0,254
mm.] 005"
[0,127
mm.] .030"
[0,762
mm.]

Install
one each of the
above
shims at the top only.
Install
the bearing caps, lockwashers, and screws,

and
tighten securely.
Check
the preload on the bearings by hooking a

spring
scale, Tool C-690, in the
hole
in the knuckle

arm
for the tie rod socket.
Take
the scale reading when the knuckle has just started its
sweep.

The
kingpin bearing preload should be 12 to 16 lb. [5,43 a 7,24 kg.] with the oil seal removed. Remove

or
add shims to obtain a preload within
these
limits.
FIG.
M-9—SPINDLE
PIN
BEARING
CUP
DRIVER

1—Tool
W-138
FIG.
M-10—TURNING
ANGLE
STOP
SCREW

1—Stop
Screw
M-10.
Replacing Steering
Knuckle
Oil Seal
Remove the old steering knuckle oil seal by remov­ ing the
eight
screws which hold it in place.
Earlier

production vehicles are equipped with seals con­ sisting of two oil seal halves.
Later
production vehicles are equipped with oil seal assemblies con­
sisting of a split oil seal and backing ring assembly,

an
oil seal felt, and two seal retainer plate halves.

Examine
the spherical surface of the axle for scores or scratches which could damage the seal.
Smooth any roughness with emery cloth. Before installing the oil seal felt, make a diagonal
cut across the top side of the
felt
so that it may be
slipped over the axle.
Install
the oil seal assembly

in
the
sequence
given above, making sure the

backing
ring (of the oil seal and backing ring as­
sembly) is toward the wheel.

After
driving in wet, freezing weather swing the
front
wheels
from right to
left
to remove moisture

adhering
to the oil seal and the spherical surface of
the axle housing.
This
will
prevent freezing with

resulting
damage to the seals. Should the vehicle be
stored for any period of time, coat
these
surfaces

with
light grease to prevent rusting.

M-11.
AXLE
SHAFT
INSTALLATION

Refer
to Fig. M-2.

Installation
of the front right and
left
axle shaft
is the same and is given in the following
paragraphs.

a.
Clean
all parts of
dirt
and foreign matter.

b.
Enter
universal joint and axle shaft assembly

in
the axle housing, taking care not to knock out
the inner oil seal.
Enter
the splined end of the
axle shaft
into
the differential and push
into
place. 281