driver seat adjustment JEEP CJ 1953 Service Manual

Dl

DAUNTLESS
V-6
ENGINE
DM.
GENERAL

This
section describes service and repair of the
Dauntless V-6 engine. The
engine
code
number shown in
Fig.
A-4 is provided to identify the Daunt­

less
V6-225 engine. The meaning of the coded letters and numbers that are stamped on the right front face of the crankcase, just below the rocker
arm
cover,
between
exhaust manifold ports, is given
below.
Letter
to
Designate
Market

M
—
Military
E
—
Export

D
— Domestic
Letter
to
Designate
Year
Built

N
— 1967
P
— 1968

R
— 1969
S
— 1970

T
— 1971

Letter
to Designate
Engine
and Compression
Ratio

H—V6-225
9.0 to 1
C.R.
(2 Bbl.
Carb.)
Y—V6-225
9.0 to 1
C.R.
Marine
(Low
Profile)
(2
Bbl.Carb.)
Z—V6-225
9.0 to 1
C.R.
Marine
(High
Profile)
(2 Bbl.
Carb.)

K—V6-225
7.6 to 1
C.R.
(2 Bbl.
Carb.)
L—V6-225
7.4 to 1
C.R.
(2 Bbl.
Carb.)

Market

Domestic
—

Year
"1967"
Engine
J

Day

Plus Chg. If
Any-
Service Engine "S"
Short
Block
"R" -Oversize Bores "B"
Undersize Crank

&
"A"

Rod
Bearings

The
identifying letter or letters follow the
engine
letters are decoded as follows:
A—.010"
Undersize
Main
and Connecting Rod
Bearings

B—.010"
Oversize Pistons

AB—Combination
of A and B
S—Service
Engine

R—Short
Block

All
disassembly and assembly procedures are pre­ sented in logical order, assuming a complete
engine

overhaul
with
engine
removed from the vehicle.

However,
many of
these
procedures can also be
performed as on-vehicle services if vehicle or
engine
components are removed to gain access to parts
involved.

Note:
Some
engines
are equipped with an exhaust
emission control system. Service information on
the components of this system is given in sec­ tion F2.

Dl-2.
ENGINE
DESCRIPTION

The
Dauntless V-6
engine
has a displacement of
225 cubic inches. It has a compression ratio of
9.0 to 1, which permits use of regular-grade
gaso­

line.
See
Figs.
Dl-1 and Dl-2.

The
cylinder block is made of cast
iron.
Two banks
of cylinders (three cylinders per bank) are cast at a
90-degree
angle. The lower part of the cylinder-

block
extends
below the centerline of the
crank­
shaft, forming a continuous flat surface with the

rear
crankshaft main bearing cap and the timing

chain
cover.
This
design allows installation of an
oil
pan with a
one-piece
gasket. The cylinders in
the left bank (as viewed from the driver's seat) are
numbered
1-3-5,
from front to
rear.
The cylinders

in
the right bank are numbered
2-4-6,
from front
to
rear.

The
crankshaft is supported in the cylinder block
by four steel-backed full-precision bearings, all of

which
have an identical diameter.
Crankshaft
main bearings are numbered 1 to 4, front to
rear.
The

thrust
bearing is flanged to maintain crankshaft position and to compensate against crankshaft end

thrust
The No. 2 bearing is the thrust bearing.

The
crankshaft is counterbalanced by weights,
which
are cast integral with the
crank
cheeks. The

weights
are shaped to a contour which
gives
mini­
mum
clearance with cylinder barrels and piston

skirts
to conserve space.

Connecting
rods have I-beam sections with
bosses

on each side. Metal is removed, as required, to secure correct weight and balance. The lower end
of each connecting rod has a steel-backed preci­
sion bearing. The piston pin is a press fit into the upper end. The outer ends of the piston pin

are
a slide fit in the piston
bosses.

The
full-skirted, aluminum alloy pistons are cam ground and tin plated. Two compression rings and
one oil control ring are installed above the piston
pin.
The cast iron compression rings in the two

upper
grooves
of the piston have a
groove
or bevel cut around the inner
edge
on one side. The
top compression ring is installed with this
groove
or
bevel up. The lower compression ring is installed

with
bevel down. The oil
ring,
in the lower groove,
consists of two thin steel
rails
separated by a

spacer.
It is backed by a hump-type spring-steel
expander.

V-6
engine
cylinder heads are made of cast
iron.

Their
valve
guides
are cast integrally. Right and left cylinder heads are identical and interchange­
able. In service, however, it is
good
practice to
install
the cylinder heads on the side from which
they were removed.

The
valves are in line in each head, at an angle
10°
above the centerline of the cylinder bores.

Each
valve has a spring strong enough to ensure
positive valve seating throughout the operating speed range of the engine. The valve rocker arm
mechanism is protected by a
sheet
metal cover.
This
cover is seated on a raised surface of the
cylinder
head. It is gasketed to prevent oil leaks.

The
rocker arms for each bank of cylinders are mounted on a tubular steel shaft, supported on
the cylinder head by brackets. The rocker arms
are
made of aluminum. They have inserts at the

push
rod socket and the valve stem contact face.

The
camshaft is located above the crankshaft be­
tween the two cylinder banks; it is supported in
four steel-backed babbitt-metal bearings. The cam­ shaft is driven at one-half crankshaft speed by
sprockets and a single outside-guide type chain.

Hydraulic
valve lifters and
one-piece
push rods operate overhead rocker arms and valves of both

banks
of cylinders from a single camshaft.
This

system requires no lash adjustment during assem­
bly
or in service.

In
addition to its normal function of a cam follower,
each hydraulic valve lifter also serves as an auto- 76

'Jeep9
UNIVERSAL
SERIES
SERVICE
MANUAL

E
exterior moving parts of a carburetor are
often

responsible for unsatisfactory performance.
For
this

reason,
efficient carburetion depends upon careful cleaning and inspection while servicing.

a.
Thoroughly clean carburetor castings and metal
parts
in carburetor cleaning solvent.

Caution:
Accelerator pump plunger and any fiber

or
rubber parts should never be immersed in
car­

buretor
cleaner. Wash pump plunger in cleaning
solvent.

b.
Blow out all passages in the castings with com­
pressed air. Dry all parts with compressed air.

Make
sure all jets and passages are clean. Do
not use wire to clean fuel passages or air bleeds.

c.
Check
inlet valve
needle
and seat for wear. If

wear
is noted, the assembly must be replaced.

d.
Check
float hinge pin for wear and check float
for damage.

e.
Check
throttle and choke shaft bores for wear

and
out-of-round.
f. Inspect idle mixture adjustment
needles
for
burrs
or
grooves; replace if damaged.
g. Inspect cup of accelerator pump plunger; re­
place if damaged, worn, or hardened. Inspect pump

well
in bowl for wear or scoring.

h.
Check
filter screens for
dirt
or lint.
Clean,
and

if
they remain
clogged,
replace.

i.
If for any reason parts have
become
loose
or
damaged in the cluster assembly, the assembly
must be replaced.

Note:
Use ijew gaskets whenever the carburetor
is disassembled.

E-37.
Throttle Body Assembly
a.
Install
idle mixture adjustment
needles
and
springs in throttle body. Tighten finger-tight, then
unthread
one
turn
as a preliminary adjustment
setting.

Caution:
Do not force idle mixture adjustment
needles
against
seats
or damage may result.

b.
Invert
fuel bowl body and place new throttle
body gasket on bowl. Fasten throttle body to bowl
body with three screws and lockwashers; tighten

securely.

E-38.
Fuel
Bowl Body Assembly

a.
Drop steel discharge check
tall
of accelerator
pump into discharge hole.
Install
pump discharge

spring
and T-shaped retainer. Stake retainer in
place.

Note:
Top of retainer must be flush with flat

surface
of fuel bowl body.

b.
Install
two inserts in main well. Align surface
on lip of insert with flat surface in recess on top
of main well.
Install
venturi cluster with gasket,

and
tighten mounting screws evenly and securely.

Be
certain that center screw is fitted with fiber gasket, and that a special smooth shank screw is
used.
c.
Install
two main metering jets, power valve
gasket and power valve.

d.
Install
small aluminum inlet check
ball
in ac­

celerator
pump inlet at
bottom
of pump well. In­

sert
pump return spring into well, and center by
pressing spring downward with finger.

e.
Install
pump inlet screen in
bottom
of fuel

bowl.

E-39.
Air
Horn Body
Assembly

a.
Install
choke lever and collar on choke shaft.

Prong
on choke lever must face away from air

horn
body and be on top of choke trip lever.
b.
Install
choke shaft and lever assembly into the

air
horn. Choke rod
hole
in the choke lever must
face fuel inlet side of carburetor.

c.
Install
choke valve plate in choke shaft so that
letters RP
will
face upward in finished carburetor.
Install
two new valve plate attaching screws, but
do not tighten securely until valve plate is centered.

To
center choke valve plate on choke shaft, hold
choke valve tightly closed, then slide choke shaft

inward
to obtain approximately .020" [0,508 mm.]

clearance
between
choke trip lever and choke lever

and
collar assembly. Tighten choke valve screws

securely,
and stake lightly in place. Choke valve

will
be perfectly free in all positions when installed
correctly.

d.
Insert
outer accelerator pump lever and shaft as­ sembly into air horn body, with lever pointing to­

ward
choke shaft.
Install
inner pump arm, with plunger
hole
inward,
and tighten set screw securely.
Position pump plunger assembly on inner pump
arm,
with pump shaft pointing
inward,
and install

retainer.

e.
Install
needle
seat screen on inlet valve seat. In­

stall
seat and gasket in air horn body. Tighten seat
securely with a wide-blade screwdriver.
f.
Install
power piston into vacuum cavity.
Lightly
stake piston retainer washer in place. Piston should

travel
freely in cavity.
g.
Install
air horn gasket on air horn body, fitting
gasket over guide pin.

h.
Attach inlet valve
needle
to float.
Carefully

position float and insert float hinge pin. Drop tang
at
rear
of float arm downward toward air horn.

i.
Install
fuel inlet fitting, if removed.

j.
With
air horn assembly inverted, measure the distance from the air horn gasket to top of float
at toe \%£f [27,78 mm.] for standard carburetors

and
\%i [29,36 mm.] for exhaust emission control
equipped carburetors, as shown in Fig. E-23. Use
float level
gauge
J-5127-2. Bend float arm as re­

quired
to adjust float level.

k.
With
air horn body held upright, measure dis­
tance from gasket to
bottom
of float
pontoon
at outer end. Use a l7/s" [47,625 mm.] float drop

gauge.
Bend float tang, as required, to adjust float

drop.
See Fig. E-24.

I.
Carefully
place air horn body on fuel bowl
body, making certain that the accelerator pump
plunger is properly positioned in the pump well.
Lower
the cover gently, straight down; install air 123

STEERING
SYSTEM

O-L
GENERAL

The
steering system on all Jeep Universal vehicles
consists of the steering gear, steering wheel, steering column and shaft, and steering linkage.
This

section covers wheel alignment, steering linkage,
steering gear, steering column and steering wheel.
0-2. Steering
Gear
Function

The
steering gear is a reducing gear. It exchanges a

relatively
large amount of movement with a small force (applied by the driver at the steering wheel), for a much smaller amount of movement with a
greatly increased force through a cam and lever
action type steering gear. The steering gear ratio is 17.9 to 1 on vehicles equipped with the F4
engine

and
19 to 1 with the V6 engine.
0-3. Steering
Linkage
Refer
to Fig. O-l.
The
steering linkage consists of a steering arm at­
tached to the steering gear, a steering connecting

rod,
(drag
link),
connecting the steering arm to the
beilcrank,
and a steering tie rod connecting the
beilcrank
to the axle tie rod. The beilcrank pivots
on a pin mounted just to the left of the frame front crossmember. The steering tie rod is connected to
the beilcrank and
extends
to the right
ball
joint as­ sembly of tie rod. The tie rod
extends
to the wheels,
being connected to their respective steering knuckle

arms
at the wheels.
With
this linkage arrangement,
as the steering arm
moves
rearward,
the front
wheels
turn
to the left. As the steering arm
moves
forward,
the wheels
turn
to the right.
Ball
joints are used to secure the drag
link,
steering
connecting rod and tie rod ends. The
ball
joints
assist in maintaining
good
steering control and con­
stant toe-in of the front wheels under all driving conditions. If the
ball
joints
become
worn enough
to allow free motion in the linkage, they should be,

replaced.

Note:
Ball
joint replacement of the tie rod requires
resetting of the wheel toe-in adjustment.
0-4.
Steering
Column
and Gear
Alignment
When
adjusting a steering gear remove all loads
from
the unit by disconnecting the steering con­
necting rod (drag
link)
from the steering arm and
also
loosen
the instrument panel bracket and the
steering gear to frame
bolts
to allow the steering
post
to correctly align itself. When retightening the
steering gear to frame
bolts
use a torque wrench
pull
of 45 to 55 lb-ft. [6,2 a 7,6 kg-m.] on the

Vk*
bolts
and 30 to 40 lb-ft. [4,15 a 5,5 kg-m.] on the
Vs"
bolts. 10811

FIG.
0-2—STEERING
GEAR
1—Nut

2
—Lockwasher

3—
Steering
Gear
Arm 4—
Lever
Shaft Oil Seal
5—
Outer
Housing Bushing
6—
Inner
Housing Bushing 7—
Filler
Plug
8—
Cover
and Tube
9—
Ball
Retaining
Ring

10—Cup
11—
Ball
(Steel)
12—
Tube
and Cam
13—
Shims

14—
Upper
Cover

15—
Lockwasher

16—
Bolt

17—
Steering
Wheel 18—
Horn
Button Retainer
19—
Horn
Button
20—
Horn
Button Cap 21— Nut
22—
Spring
23—
Spring
Seat
24—
Bearing
25—
Horn
Cable

26—
Horn
Button Spring
27—
Spring
Cup
28—
Steering Column
29—
Oil
Hole
Cover

30—
Clamp
31—
Adjusting
Screw
32— Nut
33—
Bolt

34—
Side
Cover
35—
Gasket

36—
Shaft
and
Lever

37—
Housing
314

'Jeep*
UNIVERSAL SERIES SERVICE
MANUAL

P
f. On vehicles without a transmission brake hold
the brake
shoes
in their relative position and
engage
the parking brake cable
into
the parking

brake
lever.
g. On vehicles without a transmission brake in­
stall
the parking brake strut and spring
between

the parking brake lever and the primary
shoe.

h.
Place the brake
shoes
on the backing plate and

install
the retainer pins, springs and retainers.

i.
Install the anchor pin plate.

j.
Install the lever and
sleeve
on the primary
shoe
then install the secondary return spring, then the
primary
return spring.

Important:
A
"L"
or "R" is located on the hex­

agon
side of the lever crank for identification. The
lever crank marked "R" applies to the primary
shoe
on the
left
rear brake assembly. The lever
crank
marked
"L"
applies to the primary
shoe
on
the right rear brake assembly.
k. Place the upper linkage rod in the
groove
of the
anchor pin and
engage
the hook of the link rod
into

the adjusting lever.

I.
Install the brake drum. Install the wheel and

tire
assembly.
m. Adjust the brakes as described
below.

P-19.
Brake
Shoe
Initial
Adjustment —

a.
Should wheel brake units have
been
disassem­ bled for any reason, an initial adjustment
MUST
be made
before
drum installation.

b.
When the brake parts have
been
installed in
their correct position, initially adjust the adjusting
screw assemblies to a point where approximately Y% [9,53 mm.] of threads are
exposed
between
the

star
wheel and star wheel nut.

Note:
Following the initial adjustment and final
assembly, check brake pedal height to ensure

brake
operation. Then drive the car in reverse and
FIG.
P-12—BRAKE SHOE ADJUSTMENT
1—
Star
Wheel
2—
Lever

3—
Screwdriver
4—
Brake
Adjusting Tool
forward,
making 10 to 15 brake applications prior
to road testing.
This
action balances the adjust­
ment of the four brake units and raises the brake
pedal.
c. Adjustment may be made manually by remov­ing the access
slot
cover and using a brake adjust­
ing
tool
or screw driver to rotate the star wheel
until
the wheel is in the locked position. To tighten, rotate the star wheel in the clockwise direction.
Then
back off the star wheel at least 15 to 20

notches
(clicks).

d.
To back off the star wheel on the brake, insert
ice pick or thin blade screw driver in adjusting screw
slot
to hold lever away from adjusting screw.

Back
off on adjusting screw until wheel and drum

turn
freely. Replace adjusting
hole
cover.

Caution:
DO NOT attempt to back off on ad­
justing screw without holding adjuster lever away from screw as adjuster
will
be damaged.
P-20. Master Cylinder Reconditioning —
Dual
System

Refer
to Fig. P-13.

DISASSEMBLY
a.
Remove the filler cap and empty all fluid.
b.
Remove the snap ring, push rod assembly, and
the primary and secondary piston assemblies. Air pressure applied in the piston
stop
hole
will
help
facilitate the removal of the secondary piston as­
sembly.
c. The residual check valves are located under
the front and rear fluid
outlet
tube
seats.

d.
The
tube
seats
must be removed with the
self-

tapping screws supplied in the repair kit to permit removal of the check valves. Screw the self-tapping
screws
into
the
tube
seats
and place two screw

driver
tips under the screw head and force the
screw upward as shown in Fig. P-14.
e. Remove the expander in the rear secondary cup, secondary cups, return spring, cup protector,
pri­

mary
cup, and washer from the secondary piston.
f. The primary piston, with the rubber cups in­ stalled, is supplied in the repair kit.

CLEANING
a.
After disassembly, immersion of all metal parts
in
clean brake fluid or a brake system cleaner is
recommended. Use air
hose
to blow out dirt and cleaning solvent from recesses and internal pas­

sages.
When overhauling a hydraulic brake unit,
use all parts furnished in the repair kit. Discard
all
old rubber parts.

b.
After cleaning, place
all"
hydraulic
system parts
on clean paper or in a clean pan.

INSPECTION
Inspect all other parts for damage or
excessive

wear.
Replace any damaged, worn, or chipped
parts.
Inspect hydraulic cylinder bore for
signs
of
scoring, rust, pitting, or etching. Any of
these
will
require
replacement of the hydraulic cylinder. 331

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

T
BODY

Contents

SUBJECT
PAR.

Brake
and
Clutch
Pedal Pads T-7

Canvas
Tops T-5
Care
of
Fabric
Tops. : T-6

Front
Seat Adjustment. . . T-8
Passenger Seat Safety
Catch
. .T-9
Windshield
T-2, T-3

Windshield
Glass and Weatherstrip T-4

T-1.
GENERAL
The
body
is of
all
steel construction with mountings
that provide a secure attachment to the frame.

All
major panels are of No. 18
gauge
steel. All
open

edges
of the panels are turned under, reinforced

and
flanged to provide strength. These panels are reinforced with
"U"
sections
and welded. All com­

ponent
panels are seamed and welded
together.
The
body
is insulated from the frame with insulator shims placed
between
the
body
and frame and
held in position by the
body
bolts.

The
instruments and controls, mounted on the
instrument panel are within clear view and easy
to reach.

Note:
A new floor pan cover plate has
been

released on late CJ-5 and CJ-6 models, that is
identified by a stamped oval-shaped bubble or
relief, located to the right of the accelerator treadle.
FIG.
T-l—MODEL CJ-3B BODY
1—
Rear
Passenger Seat 8—Front Passenger Seat

2—
Left
Side
Panel
9—Right Side
Panel

3—
Driver's
Seat 10—Spare Wheel
Bracket

4—
Rear
View
Mirror
11—Right
Tail
Gate
Chain

5—
Windshield
12—Tail
Gate

6—
Cowl
13—Left
Tail
Gate
Chain
7— Step
351

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

T
FIG.
T-7—TAIL
GATE
ASSEMBLY

—
LATE
MODEL
CJ-5, CJ-6
T-6.
Care
of
Fabric
Tops
Remove fabric
tops
from their protective covering
immediately after they are received. Store in a

dry,
clean,
airy
place. If the material is damp, the
top should be installed on the vehicle immediately

and
washed with a mild soap; then
give
the top a

quick
and thorough rinsing.
T-7.
Brake
and
Clutch Pedal Pads

A
clutch and brake pedal pad cover has been re­ leased which has a .44" [11,18 mm.]
groove
molded into the back side of the pad cover. When installing,
the grooved opening is located down and to the

bottom
of the pedal. See Fig. T-ll. The purpose of the
groove
concerns models not listed in this
manual.
The pedal pad cover formerly used is
FIG.
T-8—VEHICLE
CONTROLS
—
LATE

CJ-5
AND CJ-6
SINGLE
LEVER
TRANSFER
CASE
1—
Light
Switch

2—
Windshield
Wiper
Switch

3—
Hazard
Warning
Light
Switch
4—
Hand
Throttle*

5—
Choke
Control

6—
Brake
Warning
Light*

7—
Windshield
Washer
Control

8—
Ignition
Starter
Switch

9—
Cigarette
Lighter*

10—
Turn
Signal
Lever

11—
Instrument
Cluster

12—
Horn
Button

13—
Glove
Compartment

14—
Transfer
Case
Shift
Lever

15—
Transmission
Shift
Lever

16—
^Heater
Controls*

17—
Accelerator
Pedal

18—
Brake
Pedal

19—
Clutch
Pedal

20—
Hand
Brake
Control

21—
Headlight
Dimmer
Switch

*On
applicable models only. solid in construction without groove.
Either

grooved and solid pad covers can be installed on

CJ-3B,
CJ-5,
CJ-5A,
CJ-6,
CJ-6A,
DJ-5 and DJ-6 models.
T-8.
Front Seat Adjustment
The
Bostrom bucket type driver's seat installed on

early
Models CJ-5, CJ-6, DJ-5 and DJ-6, are equipped with a 3-position manual adjustment.
Three
attaching
holes
are provided in the seat
support at the four seat mounting locations. To
adjust
the seat, remove the four attaching bolts,

move
the seat and four mounting spacers to the
desired
location, and reinstall the
bolts
at the new
location. Refer to Fig. T-12.

On
late models the driver's seat may be quickly ad­

justed
to the most comfortable driving position by releasing the lever located at the lower left front

edge
of the seat. Pushing the lever to the right al-
CD CD®
®@©"®^
FIG.
T-9—VEHICLE
CONTROLS
—
CJ-5,

CJ-6
DUAL
LEVER
TRANSFER
CASE

1—
Light
Switch

2—4-Way
Flasher
Switch*

3—
Hand
Throttle

4—
Choke
Control
5—
Brake
Warning
Light*

6—
Ignition-Starter
Switch

7—
Instrument
Cluster

8—
Horn
Button

9—
Qlove
Compartment

10—Heater
Controls*

•On
applicable models only.
11—
Front
Axle
Drive
Shift
Lever

12—
Transmission
Shift
Lever

13—
Aux.
Range
Shift
Lever

14—
Accelerator
Pedal
15—
Brake
Pedal
16—
Clutch
Pedal

17—
Headlight
Dimmer
Switch

18—
Hand
Brake
Control

19—
Turn
Signal
Lever
355