1953 JEEP DJ length

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL

P
lengthening of the brake master cylinder eye bolt.

This
is
done
so the primary cup
will
clear the by­
pass port when the piston is in the off position,
otherwise the compensating action of the master

cylinder
for expansion and contraction of the fluid
in
the system, due to temperature changes,
will

be destroyed and cause the brakes to drag.

Note:
Some older 'Jeep' vehicles may
develop
side

movement
of the clutch and brake pedals resulting
from wear of the pedals, shafts, and bushings. One
way to
compensate
for this wear is to install a pedal

slack
adjuster kit,
Part
No.
921936.
FIG.
P-6—HAND
BRAKE
ADJUSTMENT

P-10.
Hand Brake

On
Model DJ-5 and DJ-6 vehicles the rear brake

shoes
are operated through cables and conduits to
form the hand or parking brake. A brake cable
equalizer and adjusting rod, Fig. P-6, is located directly back of the frame center cross member.

P-11.
Parking Brake Adjustment

•
Model DJ-5, DJ-6.

The
foot
brakes must be satisfactorily adjusted be­
fore attempting adjustment of the hand brake.

To
adjust the hand brake raise both rear
wheels

free of the floor.
Pull
up three
notches
on the hand

brake
lever and tighten the adjustment until the

rear
brakes drag slightly. Release the hand brake
lever and check the rear
wheels
for drag. The

wheels
must turn freely with the lever released.

P-12.
Transmission Brake Adjustment
The
transmission brake is located on the propeller
shaft at the rear of the transfer case, see Fig. P-4.
The
brake is operated by a cable connection from
the brake handle mounted on the instrument panel.

To
adjust the transmission brake, the following

sequence
should be followed:
Make
sure that the brake handle on the instrument
panel is fully released. Give due attention to the
cable and operating linkage to see that
they
do
not bind. If necessary free up the cable and
lubri­
cate it. Rotate the brake drum until one pair of the
three
sets
of
holes
are over the
shoe
adjusting screw

wheels
in the brake. Use the
edge
of the
holes
in
the brake drum as a fulcrum for suitable adjusting

tool
or a screwdriver, rotate each notched adjusting
screw by moving the handle of the
tool
away from
the center of the drive shaft until the
shoes
are
snug in the drum.
Back
off seven
notches
on the
adjusting screw
wheels
to secure proper running clearance
between
the
shoes
and the drum. Refer
to Fig. P-8.

P-13.
Relining Transmission Brake
Note:
The condition of the brake lining on the
transmission brake can be visually checked through
the adjusting
holes
in the brake drum.
FIG.
P-7—REMOVING
TRANSMISSION

BRAKE
DRUM

1— Tool W-172
2—
Adapter

3—
Brake
Drum
a.
To reline the brake
shoes
and make a major ad­
justment, first remove the four universal joint at­ taching nuts and lower the propeller shaft. Remove
the retracting spring clevis pin and the spring clip.
Remove the hug lock nut, the nut and washer from
the transfer case output shaft. Both the universal
joint companion
flange
and the brake drum may be readily removed by using puller Tool No. W-172

which
is illustrated in Fig. P-7. Remove the two

brake
shoe
retracting springs and the
shoes.

b. Clean all parts with a suitable cleaning solution

and
examine them for damage or wear.

Brake
shoes
may be distorted by improper lining
installation and the lining should be ground true
after installation on the
shoes.
For this reason it
is recommended that new or replacement
shoe
and
lining assemblies be installed.
c. To reassemble, first turn both adjusting screw

wheels
away from the center to "all off" position.
Place a light film of grease on the brake actuating

cam
and install the
shoes.
Install the black
shoe
re­

turn
spring next to the cam and the yellow spring next to the notch adjusting wheel screw. Place the
brake
drum and universal joint
flange
in position

and
install the transfer case output shaft washer,
nut and hug lock nut. 327

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

R
FRAME

Contents

SUBJECT
PAR.

Draw
Bar
R-6

Frame
Alignment
.R-2

Frame
Dimensions
.R-3
Front
Axle Alignment.
R-5

Straightening
Frame
R-4

R-1.
GENERAL
equipped with V6 engines, refer
to
measurements

The
frame
is the
structural center
of
the vehicle,
B£?wn
in
FiB-
R"f
, _ , r' .
for in addition
to
carrying
the load,
it
provides and The inost convenient method
of
making this check,
maintains
correct relationship
between
other units
Particularly
when
the
body
is on the
chassis,
is by

to assure their normal functioning. marking
on the
floor
all
dimensional points from

Of
rugged design, the frame
is
constructed of heavy
fhlch
measurements should
be
taken.
This
is

channel
steel side
rails
and cross-members.
Brack-
known
a\
Plumb-bobbing
the
frame Select
a

ets and diagonal braces
are
used
to
maintain
the
?Pace
on the
floof
^hlch
»
extr«nely
level If
work-
proper
longitudinal position
of the
side
rails
rela-
ing Pn
a.,fPen^
c*ean
* s°
that
the fha*k

tive
to
each other, and
at the
same time provide
*****
Jl!*
be
vJs.lble
underneath
the
frame
to be

additional
resistance
to
torsional strains. Fig. R-1, checked
If
workmg
on a
wooden
floor
it is ad-
R-2,
and R-3 illustrate
the
subject models. disable
la^
f f * V
Underneath
*he ve"

Vehicles
that have been
in an
accident
of any
hide
and
carefully tack them
m
place. Drop
a

nature,
which
may
result
in a
swayed
or
sprung gumb-bob from each point indicated
in
Figures

frame,
should always
be
carefully checked
for ^
an?
L'maJkl?g the uflo?r
Meetly underneath

proper
frame alignment, steering geometry,
and the
point. Satisfactory checking depends entirely
axle alignment.
on the
accuracy
of the
marks
in
relation
to the

frame.
To
check points that have been marked, carefully

move
the vehicle away from the layout on the floor,

R-2.
Checking
Frame
Alignment
anci
proceed
as
follows:

The
most efficient
and
satisfactory method
of a.
Check
the
frame
at
front
and
rear
end
using

checking
frame alignment
is
with
a
frame aligning corresponding marks
on the
floor.
If
widths
cor-

fixture
which
is
equipped with bending
tools
for
respond
to
frame specifications, draw
a
center line
straightening frame parts. In the absence
of
such
a the
full
length
of
the vehicle, halfway
between
the
fixture,
frame
alignment
may be
determined
by
marks indicating front and
rear
widths.
If
frame
using the
"X"
or diagonal method of checking from width
is not
correct and
the
center line cannot
be

given points
on
each side
rail.
Figs.
R-1 and R-2
laid
out
from checking points
at the
end
of
frame,

illustrate
this method
of
checking
the
frame.
it
can
be
drawn through intersections
of
any
two
When
checking frame alignment
on
vehicles
pair
of
equal diagonals.
FIG.
R-1—FRAME
ASSEMBLY
—
MODEL
CJ-3B

341

R

FRAME

11900
FIG.
R-2—FRAME ASSEMBLY
—
MODEL
CJ-5,
CJ-5A,
CJ-6,
CJ-6A
(F4
ENGINE)

b.
With
the
center line correctly
laid
out,
measure
the distance from
it to
several
opposite
points over
the entire length
of the
frame.
If the
frame
is in
proper
alignment,
opposite
measurement should
be

the same.

c.
To locate the point at
which
the
frame
is
sprung,
measure
the
diagonals marked
A-B,
B-C,
C-D.
If

the diagonals
in
each
pair
are
within [3,175

mm.],
that
part
of the
frame included between points
of
measurements may
be
considered
as
satis­

factory
alignment. These diagonals should also
in­

tersect
at the
center line.
If the
measurements
do
not agree within
the
above limits,
it
means that

correction
will
have
to be
made between
those
points that are not equal.
Note:
During
the
process
of
straightening
the

frame,
be
extremely careful
not to
overstretch
the

JiL
R

TET
12875

FIG.
R-3—FRAME ASSEMBLY MEASUREMENTS
— V6
ENGINE
1—
29H'
[74,3 cm.l 6—8[20.40 Cm.|
11—38»4*
[97,55 cm.)

2—
14 %' [37,15 cm.|
\ 7—14»4*t36,99
cm.l
12—128Mb'
[326,23
cm.]

3—
3i*4*
110,0 cm.l
8—37K*
[94.62
cm.l
13—44"^' [113,74 cm.l
4— 18«4* [46,20
cm.|
9—27**' [70,49 cm.j 14—316'
[8,18
cm.l
5—
24114»
[61,83 cm.) 10—4%* [10.56 cm.] 342

'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL

R
frame.
This
could cause the already aligned sec­
tions of the frame to
become
misaligned or weak­ ened.

R-3.
Frame Dimensions
Points for measuring frame alignment on vehicles
equipped with the F4
engine
are shown in
Fig.
R-l
and
R-2.
The correct measurements for each model

are
given in the table. Point A is at the front of the

frame.

A-B
and C-D are the distances
between
spring
shackle
bolt and spring pivot bolt frame centers
measured
on a line parallel with the frame center-

line.
E and F show the shackle bolt centers in
rela­

tion (above or below) to the pivot bolt centers.

On
vehicles equipped with V6
engines
the frame dimensions are shown in Fig. R-3.

CJ-3B

A-B
44.31"
[112,55
cm.]

C-D
. . . . . .48.48"
[123,14
cm.]
Width
Front
29%" [74,3 cm.]

Width
Rear
29M" [74,3 cm.]

"E"
above .3W [8,18 cm.]

"F"
above 4%* [10,56 cm.]

CJ-5,
CJ-5A,
CJ-6,
CJ-6A,
DJ-5, DJ-6

A-B
.47.08"
[119,58
cm.]

C-D.
52.37"
[133,02
cm.]

Width
Front
2934"
[74,3 cm.]
Width
Rear
29j|" [74,3 cm.]

"E"
above 3%" [8,18 cm.]
"F"
above. .5%" [15,0 cm.]

R-4.
Straightening Frame

In
case the bending or twisting of the frame is not
excessive, it may be straightened.
This
should be
done
cold, as excessive heat applied to the frame

will
weaken it. For this reason it is recommended that badly damaged frame parts be replaced.

Note:
A technique known as "controlled heat" can
be utilized where a frame section is "squashed" and must be brought out without "tearing" or excessive

stretch
to the metal.
R-5.
Front
Axle
Alignment

After
it has been determined that the frame is prop­

erly
aligned, the front axle alignment with the

frame
can be checked. The front axle is square

with
the frame if the distance
between
the front

and
rear
axle is the same on both sides. The dis­
tance from the spring upper bushings to the front
axle on both sides should be equal.

Note:
Always inspect the springs for broken spring
center
bolts
when checking the frame and axle
alignment.
R-6. Draw Bar

Fig.
R-4, shows method of attachment and bracing of the Jeep draw bar. The braces and the reinforce­
ment installed in the frame
rear
cross-member

channel
provide even distribution of the stresses
when moving a heavy load.

The
draw bar plate may be shifted to any one of
nine positions for alignment on the draw bar and

may
be used with the
offset
up or down to change
the height of attachment.
Check
the attaching

bolts
periodically to be sure they are tight at all
times.
FIG.
R-4—DRAW
BAR
MOUNTING

R-7.
FRflME
SPECIFICATIONS

Type
— All Models j
Ladder
with Steel
Channel

Side
Members

Vehicle
Number
of

Cross
Members
Overall

Length
Width

Front
Rear
Section

Modulus

CJ-3B
i

CJ-5,
CJ-5A,
DJ-5 1

j

4 Intermediate j

•
Front
Bumper Bar
Rear
K-member 122%'
[311,55 cm.]
128%'

[326,23
cm.] 29^*
[74,3 cm.]
[74,3 cm.]
29M'

[74,3 cm.]
[74,3 cm.] 1.493 in. cu.
1.493 in. cu.

CJ-6,
CJ-6A,
DJ-6
|
J
1

I

r
\mw t

[377,03
cm.]
29M'

[74,3 cm.]
29M'

[74,3 cm.] 1.493 in. cu.
343

•Jeep'
UNIVERSAL SERIES SERVICE
MANUAL

S-8.
SPRING SPECIFICATIONS

TYPE
Longitudinal
Leaf
DRIVE
THROUGH
Springs
SPRING TYPE
Semielliptical

MODEL;
F4
ENGINE CJ-3B CJ-5 CJ-6
FRONT SPRINGS:

Width...

REAR
SPRINGS:
Width

Spring
Rate
10
3634" [92,08 cm.]
\W
[4,45 cm.]
260 lbs. per in.
9

42"
[106.68 cm.]
l%"
[4,45 cm.] 190 lbs. per in.
7

395**
[100,65 cm.]
1&"
[4,45 cm.]
240 lbs. per in.
9

46J*#
[117,16 cm.]
IW
[4,45 cm.]
200 lbs. per in.
7

395*"'
100,65 cm.]
l%"
[4.45 cm.]
240 lbs. per in.
9

46}*"
1117,16 cm.]
l%"
[4,45 cm.]
270
lbs.
per in.

MODEL:
V-6
ENGINE
C
J-5A, CJ-6 A
CJ-5, CJ-6 DJ-5,
DJ-6

FRONT SPRINGS:
Number
of
Leaves

Width.....

Spring
Rate

REAR
SPRINGS:

Width

Spring
Rate
6

395*"
[100,65 cm.]
1%"
[4,45 cm.]
260 lbs per in.

5
46H"
[117,16 cm.]
\W
K,45
cm.]
230 lbs.
r»er
in. 10

39%"
[100,65 cm.]
IW
[4,45 cm.]
176 lbs. per in.

5

46
H"
[117,16 cm.]
IW
[4,45 cm.]
230 lbs. per in.
5

395**
[100,65 cm.]
1%"
[4,45 cm.]
188 lbs. per in.

5

463*"
[117,16 cm.]
1%"
[4,45 cm.]
230 lbs. t>er in.
S-9.
SHOCK ABSORBER SPECIFICATIONS

TYPE
Hydraulic
ACTION
Double

MODEL:
CJ-3B CJ-5, CJ-5A, CJ-6, CJ-6A
DJ-5,
DJ-6

FRONT SHOCK ABSORBERS:

Length:
"
[27,31 cm.]

Compressed
"
[27,31 cm.]

llj*i"
[29,05 cm.]

Extended
*
[44,45 cm.]

1%W
[46,83 cm.]

Piston Diameter
I" [2,54 cm.]
1* [2,54 cm.]

REAR
SHOCK ABSORBERS:

Length:
Compressed
10H
[27,31 cm.]

11%*
[30,32 cm.]

Extended
17H"
[44,45 cm.]
19j*j"
[43,37 cm.]

Piston Diameter
1"

[2,54 cm.] 1" [2,54 cm.]
349

'Jeep'
UNIVERSAL SERIES SERVICE
MANUAL

u
MISCEIiLaNEOUS

Contents

SUBJECT
PAR.

Abbreviations
U-15
Extra
Equipment U-2

Front
Bumper Weight U-9
Governor
U-3

Governor
Adjustment U-4

Governor
Maintenance. U-6

U-1. GENERAL

Miscellaneous information included in this sectioi
includes coverage of extra equipment, special
tools,
torque specifications, and charts and tables.

U-2. EXTRA
EQUIPMENT

Much
of the utility of the
*
Jeep*
Universal
is due to
the extra equipment which has been designed to adapt it for farming and industry. The mainte­
nance and use of
some
of this equipment is out­
lined
in this section.

U-3.
Governor Assembly

The
Novi governor is supplied for models equipped

with
the F4 engine.
This
is a centrifugal type governor and is illustrated in Fig. U-2. Complete

installation
instructions are supplied with each
assembly. Adjustment and operating procedures

are
given below.

U-4.
Governor Adjustment

a.
Adjust the carburetor to obtain smooth
engine

idle at 600 rpm., then
stop
the engine.
b.
Check
throttle linkage to ensure maximum
throttle opening. Be certain that throttle and
governor linkage is free.

c.
Place the carburetor throttle in wide-open posi­ tion and
pull
the governor control handle out to
the last notch. Adjust the governor to bellcrank

rod
so that the linkage
will
hold the carburetor
throttle in wide-open position.

d.
Close the governor control and start the
engine

Again
pull
the control out to the last notch and

adjust
the length of the cable at adjusting yoke so
that the
engine
will
run at
2600
rpm. Close the

control
to recheck the linkage for free action and
to make sure the
engine
will
return to 600 rpm.
idle speed.

If
the
engine
runs faster than this speed,
loosen

the lock nut which locks the governor hand control
handle on the dash to the rod and back off the
handle until the carburetor idle speed adjusting

screw
bears on the stop. Tighten the lock nut.
In
the absence of electrical tachometer equipment,

engine
speed may be determined by the speedom­
eter. Safely
jack
up the
rear
wheels and be sure the front wheel drive is not
engaged.
When driving
the
rear
wheels in high or direct transmission gear,
the
speedometer
will
read from 13j^ to 15 mph. [21.6 to 24.0 kph.] at an
engine
speed of from 900
to 1000 rpm.
SUBJECT
PAR.

Heater
U-10 Miscellaneous Data U-16

Pintle
Hook 1X7
Special
Tools. U-ll
Torque
Specifications U-13, 14, 15

Standard
and Recommended Tools
j.
.U-12

U-5.
Novi Governor Operation /

The
Novi governor is directly belted to the F4

engine
as no clutch is provided to disconnect the
drive.

To
operate the vehicle
WITHOUT
governor con­
trol,
push the governor hand control all the way
IN
against the instrument panel.

To
operate the vehicle
WITH
governor control,

pull
the governor hand control handle out. The
hand
control has nine notched positions. Pulling the

control
out to the first notch
sets
the controlled

engine
speed at approximately 1000 rpm. and each successive notch increases the speed 200 rpm.

until
2600
rpm. is reached in the ninth notch. The

hand
control may be released by turning the han­ dle one-quarter
turn
in either direction.

When
the
engine
is being operated under governor

control
(hand control out) the controlled
engine

speed may be
exceeded
at any time by depressing
the
foot
accelerator in the conventional manner to
secure a greater carburetor throttle opening than
that determined by the governor hand control
setting.

U-6.
Governor Maintenance

The
belt tension may be adjusted by raising or
lowering the governor in the slotted
holes
in the mounting bracket. Keep the pulleys and belt free
of
dirt
and oil. Belt slippage
will
affect governor
operation and a tight belt may cause
rapid
wear
of the governor shaft and bearings. Adjust it to
allow Yi' [12,7 mm.] depression midway
between
the pulleys with thumb pressure.
There
is little wear of the internal parts for they
operate in oil. The governor housings are equipped

with
both
fill
and
drain
plugs and also with level

indicating
plugs.
Check
the oil level at each vehicle
lubrication
and change the oil each time the en­

gine
oil is changed using the same grade oil used

in
the engine.

Caution:
Do not
fill
the governor housing above
the level plug. Overfilling
will
prevent governor
control
and possibly cause damage to governor in­

ternal
parts. The capacity of
these
governors is two fluid ounces [59,15 cm3]. The filler plug is
also a vent which should be cleaned thoroughly at
each oil change to be sure that the vent operates.

U-7.
Pintle Hook

The
standard type pintle hook, Fig. U-1, affords a
safe, easy hitch for towing a
trailer
or other vehicle. 357