1953 JEEP CJ wheel size

p

BRAKES
be either a defective master cylinder or the use of
low grade brake fluid which has expanded because
of heat. Use standard duty brake fluid conforming to
SAE-J1703
specification.

P-7.
Bleeding
Brakes

The
hydraulic
brake system must be bled whenever

a
fluid line has been disconnected or air
gets
into the system. A leak in the system may sometimes
be indicated by the presence of a spongy brake
pedal.
Air trapped in the system is compressible

and
does
not permit the pressure, applied to the
brake
pedal, to be transmitted solidly through to
the brakes. The system must be absolutely free
from
air at all times. When bleeding brakes, bleed
at that wheel with the
longest
line from the master
FIG.
P-5—BLEEDING
BRAKES

1—Bleeder
Screw
cylinder
first, the next
longest
second, etc. During
the bleeding operation the master cylinder must
be kept at least %
full
of hydraulic brake fluid.

To
bleed the brakes, first carefully clean all
dirt

from
around the master cylinder filler plug. If
bleeder tank is used follow the manufacturers in­
structions.
Remove the filler plug and
fill
the master
cylinder
to the lower
edge
of filler neck.
Clean
off

all
bleeder connections at all four wheel cylinders.

Attach
bleeder
hose
and fixture to right
rear
wheel

cylinder
bleeder screw and place end of tube in a
glass jar, and submerged in brake fluid. Open the bleeder valve one-half to three-quarters of a
turn.

See
Fig.
P-5.
Depress the
foot
pedal, allowing it to return very
slowly. Continue this pumping action to force the
fluid
through the line and out of the bleeder
hose
which
carries with it any air in the system. When bubbles cease to appear at the end of the bleeder
hose, close the bleeder valve and remove the hose.
After
the bleeding operation at each wheel cylinder
has been completed,
fill
the master cylinder reser­
voir
and replace the filler plug.
Do not re-use the liquid which has been removed

from
the lines through the bleeding process because
of air bubbles and
dirt.

P-8.
Brake Hoses

a.
Hydraulic
lines (tubing and hose) are the means
of transmitting fluid under pressure between the master cylinder and the wheel cylinders.

Note:
On
some
vehicles a proportioning valve is
located in the
rear
brake line along the inside left
frame
side
rail.
The valve is not serviceable and
must be replaced as an assembly.

Should
replacement be necessary make certain the valve is properly positioned with the centerline of
the hex plug (in the bottom of the valve) in the
vertical
position. Refer to Fig. P-l.

The
hoses
are the flexible links between the wheels

or
axles and the frame or body. The
hoses
must

withstand
the fluid pressures without expansion
and
must be free to flex during spring deflection
and
wheel turns without causing damage to the
hose.

b.
Hydraulic
lines are subject to damage and
deterioration. Hoses should be inspected for cuts,

chafing,
cracks,
twists and
loose
frame supports.

Hydraulic
tubing should be inspected for signs of
leakage (due to faulty flares or
loose
connections);

restrictions
(due to dents or corrosion); and wear (due to friction against other metal parts). Always
use correct type and size of wrench on fittings.

Avoid
damage to female fittings by supporting fit­
ting with tube nut during removal of assembly.

c.
On fittings where gaskets are used, always use
a
new gasket. Copper gaskets take a set and may
not form a
good
seal if reused.

d.
When replacing hydraulic brake hose, attach
hose
to wheel cylinder and securely tighten hose,
then attach
opposite
end to frame fitting or tubing.
Avoid
twists in
hose
when assembling to frame fitting
or
tubing. Hold
hose
end securely with

wrench
while attaching tubing to hose. If
hose
end
clip
is used, make certain clip is assembled properly.

Check
for interference during spring deflection or
rebound and during front wheel turns.

e.
Check
for any possible contact between front

brake
hose
and inner sidewall of tire when the front
wheels are in maximum
turn
position.
Check
for sufficient but not excessive length of
hose
between
the clamp and the wheels by turning the wheels
from
one extreme
turn
position to the otherl
f.
Check
that there is no possibility of any contact between the
tail
pipe and
rear
brake
hose
under
all
operating conditions.
P-9.
Brake Pedal Adjustment

There
should always be at least W [12,7 mm.]
free pedal travel before the push rod
engages
the master cylinder piston.

This
adjustment is accomplished by shortening or 326

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

P

FIG.
P-9—WHEEL HUB OIL
SEAL
DRIVER
•
Removing the
Rear
Brake
Shoes.

•
Refer to Fig. P-ll.

a.
Using Tool C-3785 or equivalent remove the
upper linkage rod and brake
shoe
return springs.
b. Remove the brake
shoe
retainer, spring and pins.
c. Remove the anchor pin plate and tilt the brake

shoe
assembly out from the backing plate.

d.
On vehicles without a transmission brake,
spread the anchor
ends
of the primary and second­

ary
shoes
and remove the parking brake strut and
spring.

e. On vehicles without a transmission brake, dis­

engage
the parking brake cable from the parking
brake
lever and remove the brake assembly.
f. Overlap the anchor
ends
of the primary and
secondary
shoes
and remove the adjusting screw,
adjusting lever, lower return spring, and linkage
rods.
P-17. Inspection
Inspect the oil seals in the wheel hubs. If the con­
dition of any oil seal is doubtful, replace it. Install
the oil seal with an oil seal driver as shown in Fig.

P-9.

Brake
shoes
may be distorted by improper lining installation and linings should be ground true. For
this reason it is recommended that new or re­
placement
shoe
and lining assemblies be installed.
Using
brake drum micrometer C-3920 or equi­
valent, check all drums. Should a brake drum be rough and scored, it may be reconditioned by grinding or turning in a lathe. Do not remove more
than .030"
[0,762
mm.] thickness of metal .060" [1,52 mm.] overall diameter. If a drum is recon­
ditioned in this manner, either the correct factory-
supplied, oversize lining .030"
[0,762
mm.] must be
installed or a shim equal in thickness to the metal
removed must be placed
between
the lining and

shoe
so that the arc of the lining
will
be the same
as that of the drum.

If
it is found when
wheels
are removed that there
is brake fluid leakage at any of the wheel cylinders, it
will
be necessary to replace or recondition the
wheel cylinder (Par. P-21) and bleed the brake lines (Par. P-7).
Whenever the brake lining is replaced in one front
or one rear wheel, be sure to perform the same
operation in the
opposite
front or rear wheel, us­
ing the same brake lining part number. Otherwise, unequal brake action
will
result.
FIG.
P-10—STANDARD
FRONT
WHEEL
BRAKE

ASSEMBLY
WITH
LINK
TYPE
ADJUSTER 1—
Primary
Shoe
6—Lever
Plate

2—
Wheel
Cylinder
7—Linkage Rod (Upper)

3—
Secondary
Shoe 8—Screw
4—
Adjuster
Screw Assembly 9—Linkage Rod
(Lower)
5— Sleeve 10—Adjuster
Lever

P-18.
Brake
Shoe Installation

Refer
to Fig. P-10.

INSTALLING
THE
FRONT
BRAKE
SHOES

To
install the front brake
shoes
proceed as follows:

a.
Match a primary with a secondary brake
shoe
and
place them in their relative position on a

work
bench.

Note:
Primary
brake linings are color coded red

and
green. Secondary brake linings are color coded
white and green.
b. Lubricate the threads of the adjusting screw

and
install it
between
the primary and secondary

shoes.
The star adjusting
wheels
are stamped "R"

and
"L"
indicating thread rotation. The
left
front
brake
adjusting screw has right hand thread rota­
tion and the right front brake adjusting screw has
left
hand thread rotation. 329

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

Q
ice, provide maximum safety over all
types
of

terrain,
and furnish the medium on which the
vehicle can be maneuvered with ease. Although
there are other
elements
of tire service, inflation maintenance is the most important and in many
instances the most neglected. The tire pressure should be maintained for safe operation. An under- inflated tire is dangerous as too much flexing can
cause breakage of the casing. Overinflation in time
may
cause a blowout.

Upon
careful inspection of tires, it may be found
that improper wheel alignment, balance, grabbing
brakes,
poor driving habits, fast cornering or other
conditions are the cause of wear. Such conditions
should be corrected.

a.
UNDERINFLATION

Underinflation
distorts the normal contour of the
tire
body and the tire
bulges
or "bellies out" with

an
extreme flexing action.
This
wears the tread at the
edges
more than the center and generates
excessive internal heat, weakening the cords and
resulting
in bruises, broken cords or ply separation.

Underinflation
also leads to rim bruises as in­ sufficient resistance is provided to prevent the tire

from
being jammed against the rim and crushed
or
cut when the tire strikes a
curb,
rock, or rut.

b.
OVERINFLATION

When
a tire is
overinf
lated,
increased tension caused by excessive pressure prevents proper deflection of
the sidewalls.
This
results in wear in the center of the tread and the tire also
loses
its ability to absorb

road
shocks. Under this increased
strain,
cords in the tread area eventually snap under impact, caus­ing a casing break.

c.
MISALIGNMENT
WEAR
Excessive
wheel camber causes the tires to run at an angle to the road when camber is incorrect

it
will
cause excessive wear on one side of the
tire
tread.

Front
wheels should be straight ahead or toe-in slightly. When there is excessive toe-in or
toe-out,

tires
will
revolve with a side motion and scrape
the tread rubber off.
Front
tires
will
show wear on the outside with too great a toe-in condition
and
on the inside with a
toe-out
condition.

d.
BALANCE
Cupping
and bald spotting of tires is associated

with
wear on a vehicle driven mostly at high-way
speeds
without the recommended tire rotation and

with
unbalance conditions.

Q-12.
Tire
Care
Note;
For satisfactory 4-wheel drive operation, a
4-wheel drive vehicle
MUST
be equipped with the same size tires of equal circumference on all
four wheels. The tires must then be inflated to

proper
factory recommended pressures at all times.

Tire
pressure, tire rotation, wheel balance, and wheel alignment are the four vital factors that in­
fluence the
extent
of tire life and the
ease
and safety of vehicle control.
Four
of the most common

tire
troubles are:

a.
Excessive wear around the outer
edges
resulting

from
underinflation.

b.
Excessive wear in the center of the tread re­
sulting from overinflation.

c.
Tire
tread worn on one side indicating wheels
need realigning.
d.
Cuplike
depressions on one side of the tread

indicating
wheels need balancing.

If
the vehicle normally carries a
full
load, two to
four psi. [0,14 a 0,28 kg-m2] can be added to the
recommended air pressures. But, remember that adding air with a light load means a harsher ride,

doesn't
help tires, and wears out shock absorbers. Rotate the tires as shown in Fig. Q-9 for correct
rotation system.

Q-13.
Tire
Removal
and
Installation

To
remove a tire from a drop center rim, first
WEAR
AT SHOULDERS

WEAR
AT CENTER

WEAR
ON ONE
SIDE
FEATHERED
EDGE
BALD
SPOTS

/1TTDN

i

UNDER
INFLATION
OVER
INFLATION
EXCESSIVE
CAMBER

INCORRECT
TOE
WHEEL
UNBALANCED

liF
11

ADJUST
PRESSURE TO
SPECIFICATIONS
WHEN
TIRES ARE
COOL
ADJUST
CAMBER
TO

SPECIFICATIONS
ADJUST
FOR

TOE-IN
DYNAMIC
OR
STATIC

BALANCE
WHEELS

FIG.
Q-8—TIRE
WEAR
PATTERN
339

Q

WHEELS

11463

FIG.
Q-9—TIRE
ROTATION
1—
Right
Front
Tire

2—
Right
Rear
Tire

3—
Spare
Tire
4—
-Left
Rear
Tire

5—
Left
Front
Tire
deflate completely and then force the tire away

from
the rim throughout the entire circumference
until
the bead falls into the center of the wheel

rim.
If the vehicle is equipped with tires that use

an
inner tube, carefully remove the inner tube.
With
the inner tube removed, or on tubeless tires, a tire
removing tool should be used to remove the tire

from
the rim.

Installation
of the tire is made in the same manner
by first dropping one side of the tire into the center
of the rim and with a tire tool raise the bead over
the wheel
rim.
The inner tube can now be installed
on vehicles so equipped.
When
mounting the wheel, alternately tighten op­
posite stud nuts. After the nuts have been tightened

with
the wheel jacked up, lower the
jack
so wheel rests on the floor and retighten nuts. Torque nuts
to 60-75 lb.-ft. [8,3 a 10,4 kg-m.].

Note:
New "wide" tires have been given new sizes
by tire manufacturers. They use a letter as a key
unit
in the name size for the new wide treads.

The
single letter in front of the "70" indicates load rating, or the weight a tire can support safely
when inflated to 32 psi. The number 70 is used to show the
7-to-10
(70 percent) ratio of tire section height to width. The last two-digit number of the new sizes— 15 —
is
the rim diameter.
Radial

ply
tire sizes all contain the letter
"R"
to designate
radial
ply construction.

15-inch
Diameter
New Old

E70-15
7.35-15

F70-15
.7.75-15

G70-15
8.15-15

H70-15
8.45-15
J70-15
.8.85-15

K70-15
. .... .9.00-15

L70-15
9.15-15

You
should explain to customers
these
new tire
designations. Such knowledge
will
act as a re­
minder
never to mix
radial
ply, wide treads or
conventional tires on one axle.
0-14.
WHEEL
AND
TIRE
SPECIFICATIONS
'Jeep'

Universal

V6
Engine

CJ-5,
CJ-6,
CJ-5A,
CJ-6A
'Jeep*

Universal

F4
Engine

CJ-3B,
CJ-5,
CJ-6
DJ-5,
DJ-6

WHEELS:
Rim
Size 15 x
6.00
16 x 4.50
15 x 5.50

K
E
K

Attachment

Type
Stud
Stud Stud

Circle
Dia 5.50 5.50 5.50

5 5
4

Size
H-20
H-20
H-20

Rear
Axle Shaft End Float .001*-.006"
.001"-.006" .001 *-.006"
[0 ,025 a 0,152 mm.)
[0,025 a 0,152 mm.] [0,025 a 0,152 mm.]

TIRES:
Size.
7.35-15

6.00-16
6.85-15

Ply
Rating 4
4 2
Revolutions per Mile @ 30 mph.. . 781 730 803

Inflation
Pressure

Front
20
psi
[1,406 kg-cm2]
20 psi [1,406 kg-cm2] 24 [1,687 kg-cm*]

Rear
24
psi
[1,687 kg-cm*]
20 psi [1,406 kg-cm2] 24 [1,687 kg-cm*] 340

u

MISCELLANEOUS
U-ll. SPECIAL TOOLS

Below are listed the
tools
applicable to
models
covered in this manual. These special
tools
are
essential not
only
for the
time
they
will
save
but

also
because
many
operations
described cannot be performed
without
them.

Note;
Tools W-274, W-283, and W-285 are univer­

sal
and can be used on all
engines.

Tool
Description
HURRICANE
F4
ENGINE

W-172 Puller, Timing
Gear,
U-Joint Flange, Vibration Damper W-231 Kit, Flywheel Dowel Installing
W-238 Driver, Intake and Exhaust Valve Guide

W-2
74 Pliers, Spark Plug Terminal Removal and Installing W-283 Gauge, Fan Belt Tension W-285 Studs, Oil Pan Gasket Aligning
C-690 Scale and Gauge, Piston Fitting

DAUNTLESS
V-6
ENGINE

W-274 Pliers, Spark Plug Terminal Removal and Installing
W-283 Gauge, Fan Belt Tension W-285 Studs, Oil Pan Gasket Aligning W-323
Rear
Main Bearing Cap Remover Bolt
W-338 Piston Pin Remover and Installer Set
J-6047-1
Support, J-6047-3 Spring,
J-6047-4
Driver, J-6047-5
Collar,
J-6047-20
Pilot
C-690 Scale & Gauge, Piston Fitting
J-5127-2 Carburetor Float Gauge
J-5830-1
Reamer, .004"
[0,102
mm.] Oversize

Electrical
Group

C-3858 Installer, Rotor, Housing and Shaft Bearing Assembly
C-3935 Driver, Alternator Rotor Bearing (Small) C-3936 Puller, Alternator Rotor Bearing (Small)
C-4068 Puller, Alternator Rotor Bearing (Large)

Transmission
Group

KF-128-A
Driver, Main Drive Shaft Bearing W-166 Arbor &
Sleeve,
Countershaft
Needle
Bearing Aligning
W-193 Arbor, Countershaft
Needle
Bearing Aligning W-194 Plate, Transmission Main Shaft Retaining
W-329 Puller — Main Drive
Gear
and Mainshaft Bearing (used with SP-5350 Adapters)
W-331 Driver Set — Main Drive
Gear
and Mainshaft Bearing (used with SP-5361 Driver Heads)
W-334 Thrust Yoke Tool — Second-Third Synchronizer Clutch Protecting W-335 Arbor — Countershaft
Needle
Bearing Aligning
W-336 Arbor — Reverse Idler Shaft
Needle
Bearing Aligning
C-3105 Driver, Mainshaft
Rear
Oil Seal (2WD)

Transfer Case
Group

W-130 Thimble & Driver, Shifter Rod Oil Seal
W-131 Thimble & Driver, Pinion Shaft
Rear
Bearing Cone
W-133 Driver,
Speedometer
Drive Pinion Bushing W-139 Driver, Output Shaft Front Bearing Cone Removing
W-141 Ring, Output Shaft Front Bearing Cone Removing
W-143 Driver, Output Shaft Front &
Rear
Oil Seal Installer W-176 Puller, Shift Rod Oil Seal
W-192 Pilot Pin, Transfer Case Intermediate
Gear
Thrust
Washer
W-251 Puller, Pinion Shaft Oil Seal, Transfer Case Front and
Rear
Oil Seal Removing

Universal
Joint Group

W-162 Tool, U-Joint Flange Installer
W-220 Jig & Bushing, Power-Take-Off U-Joint Pin Remover & Installer
C-3281 Wrench, U-Joint Holding 360

u

MISCELLANEOUS
U-14.
SPECIAL
CHASSIS
TORQUE
SPECIFICATIONS

CHASSIS:
Pounds
-
Feet
j kg-m.
Brake
Backing Plate Bolts.
25-35 ! 3,4 a 4,8
Clutch
and
Brake Pedal Shaft Hugnut
25-40 3,4 a 5,5

Differential
Carrier
38-42 5,2 a 5,8

Engine
Front Insulator
to
Frame.
10-15 1,4 a 2,1

Engine
Rear
Insulator
to
Crossmember Bolt.
. . ... 20-30 2,8 a 4,1
Engine
Rear
Mounting Bracket
to
Transmission Bolt.
20-30 2,8 a 4,1

Pressure
Plate
to
Flywheel Bolts
12-17 1,7 a 2,3

Propeller Shaft
and
Universal Joint Flange Bolt
25-45 3,4 a 6,2

Propeller Shaft
and
Universal Joint U-Bolt
1 13-18 : 1,8 a 2,4
Rear
Axle Shaft
Nut 150
Minimum
; 20,8
Spring
Mounting
—
Front
and
Rear
U-Bolt
V^n [11,11 mm.] 32-46 i 4,5 a 6,3
Spring
Mounting —-
Rear
U-Bolt
— [12,7 mm.] 45-65 6,2 a 9,0

Spring
Pivot Bolts
." 25-40 3,4 a 5,5

Steering Arm
to
Gear
Nut
(Ross)
..
i
70-90 9,7 a 12,4

Steering Arm
to
Gear
Nut
(Saginaw)
' 120-160 16,6 a 22,1

Steering Knuckle
and
Arm Nut..........
55-65 j 7,6 a 9,0

Steering Bellcrank Bolt
Nut 14-19 < 1,9 a 2,6

Steering Knuckle Seal Retainer Bolts
S 10-15 1,4 a 2,1
Steering Knuckle Support
to
Knuckle Arm
to
Wheel Spindle Bolt
45-55 , 6,2 a 7,6

Steering Mounting
to
Frame
—
Y%
[9,53 mm.] 30-40 '• 4,1 a 5,5

Steering Mounting
to
Frame
— W [11,11
mm.]...
i 45-55 6,2 a 7,6

Steering
Tie Rod
Clamp Bolts
— [7,94 mm.] 10-15 1,4 a 2,1

Steering
Tie Rod
Clamp Bolts
— Ke" [U,H mm.] ; 35-45 , 4,8 a 6,2

Steering Wheel
Nut 32-38 1 2,7 a 5,2

Transmission
Mainshaft
Nut 130-170 18,0 a 23,5
Wheel
to Hub
Bolts
65-90 9,0 a 12,4
Spring
Mounting
—
Suspension Bolts
(All) , 65-80 9,0 a 11,0

Body Hold-Down Bolts
— W [11,11 mm.} 25-30 i 3,4 a 4,1
—
W [12,7 mm.l , . . 45-50 I 6,2 a 6,9

U-15.
CHASSIS
AND
BODY
BOLT
TORQUE
CHART
Note:
Applies to all applications not listed.

Bolt Size Pounds
-
Feet
kg-m.

.....
[6,35 mm.] 4-8
0,6-1,1

[7,94 mm.] 8-15
1,1-2,1

[9,53 mm.] 18-30

2,5-4,1

"Mrl4.
[11,11 mm.]
27-45
3,8-6,2
116-20. [11,11 mm.] 32-46
2,7-6,3
M-13.
[12,7
mm.]
40-60
5,5-8,3

H-20
[12,7
mm.]
48-62
6,7-8,5

%-12.
[14,29 mm.]
48-80
6,7-11,0

%-lB.
[14,29 mm.]
57-86
7,9-11,9
5A-n. [15,88 mm.]
75-140
10,4-19,4
[15,88 mm.] 87-152
12,0-20,9

U-io.
[19,05 mm.]
126-192
17,4-25,5

§4-16.
[19,05 mm.]
150-184
20,7-26,5

Vs'9..
[22,23 mm.]
215-290
29,7-40,1

K-14.
[22,23 mm.]
255-290
35,3-40,1
1-8 [25,4 mm.] 300-430
41,5-59,5
1-14. . [25,4 mm.]
300-390 41,5-54,0 364