length JEEP CJ 1953 Workshop Manual

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