check engine light JEEP CJ 1953 Service Manual

*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-2.
Special Lubricants

Special
lubricants are required for certain
lubri­
cation points on the 'Jeep' Universal vehicles. The

special
lubricants are necessary for proper function­ ing and maintenance of the vehicle. The
Lubrica­
tion
Chart
(Fig. B-l and B-2)
designates
the spe­
cial
lubricating points and identifies them by type

or
part number.

B-3.
Applying
Fresh
Lubricant

When
servicing or lubricating the vehicle, it is important that all old lubricant and
dirt
be re­ moved from the fitting and/or plugs before servic­
ing and that the recommended type of lubricant be used for the particular item being serviced.
Force
lubricant through the lube fittings until the lubricant being forced out of the joint is fresh

lubricant,
indicating that all old lubricant has
been removed.

B-4.
Engine
Lubrication
System —
Hurricane
F4 Engine

•
Refer to Fig. B-3.

The
engine
oil pressure system is designed to pro­
vide adequate lubrication to all working parts of
the engine. The gear-type oil pump is driven from
the
engine
camshaft. The pump is provided with a
FIG.
B-3—ENGINE
LUBRICATION
SYSTEM
—

HURRICANE
F4
ENGINE
floating, screened intake that prevents the
circula­

tion of any sediment that might accumulate in the

oil
pan. By means of this pump, the main bearing

journals
and crankpins are efficiently lubricated through an oil gallery and passages in the cylinder
block.
Oil
is forced under pressure to the main bear­
ings and through the cheeks of the crankshaft to
the connecting rod bearings. Oil is also force-fed
to the camshaft bearings, timing gears, and intake valve rocker arms. The oil pressure is controlled by

relief
valve located in the oil pump. The valve is
designed to open when excessive pressure
develops
in
the system, relieving the pressure and returning the
excess
oil to the oil pan. The cylinder walls,
piston pins, and tappets are supplied with oil from
spurt
holes
in the connecting rods. A portion of the oil is continually passed through an oil filter
which
effectively removes any foreign matter sus­ pended in the oil. A flanged section on the
rear
of
the crankshaft acts as an oil slinger and, in com­
bination with the
rear
main bearing upper and lower oil seal, prevents the leakage of oil from the

rear
end of the cylinder block. Leakage of oil from
the front end of the cylinder block is controlled by the crankshaft oil slinger and the front oil seal
installed in the timing gear cover. The oil pressure
indicator
light in the instrument panel and the oil level
gauge
or dip stick in the side of the
engine

provide a means for checking the oil pressure and

oil
level.

B-5.
Oil Pressure Gauge or Indicator
On
early
CJ-3B
vehicles an oil pressure
gauge
is
mounted on the instrument panel.
This
gauge
in­ dicates the oil pressure within the
engine
lubri­

cating system.

On
Models
CJ-5,
CJ-5A,
CJ-6,
CJ-6A,
DJ-5, DJ-6

and
later production vehicles of Model
CJ-3B
a
red
telltale lamp, which operates when the ignition
switch is turned on, is lit when there is insufficient
oil
pressure to properly lubricate the engine. When

it
goes
out, operating pressure is achieved. In
normal
operation, the light is lit when the ignition
is first turned on. It
goes
out after the vehicle is

in
motion.

Failure
of the
gauge
or indicator to register normal
oil
pressure may indicate insufficient supply of oil

in
the
engine
crankcase, low or no oil pump pres­
sure,
or a fault in the
gauge
or indicator electrical

circuit.
The
engine
must be stopped immediately to prevent possible damage to
engine
bearings and
the fault corrected before restarting the engine.

B-6.
Engine
Lubrication
System — Dauntless V-6 Engine

The
engine
lubrication system (Fig. B-4) is the
force
feed
type in which oil is supplied under pres­

sure
to the crankshaft, connecting rods, camshaft bearings and valve lifters. Oil is supplied under con­trolled volume to the rocker arm bearings and push

rods.
All other moving parts are lubricated by gravity flow or splash.

The
supply of oil is
carried
in the oil pan which is filled through a filter opening in the right rocker

arm
cover. A removable oil
gauge
rod on the left side of the crankcase is provided to check oil level.

The
oil pump is located in the timing chain cover 10

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

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL

B
e.
Check
for the presence of
excess
water in the

oil
that might indicate an internal leak from the
cooling system.

f.
Pour oil into the oil filler tube. Replace the oil

filler
cap.

B-10.
Engine Oil
Filter
Service —
Hurricane
F4 Engine

The
engine
oil filter assembly should be replaced at each
2000
miles
[3.200
km.] of normal
engine

use. To remove the filter, use oil filter wrench
C-4065.
To install a new filter, wipe the gasket —
contact surface with
engine
oil, screw on the unit

until
gasket contacts the sealing surface, and then tighten at least one
half
turn
more. DO NOT USE

TOOLS.
Turn
by hand only. When refilling the
engine
crankcase after filter has been changed be

sure
to add one extra quart [1 ltr.] of oil to
fill

filter
and oil passages. Run
engine
to make sure there is no leak at oil filter.

B-l 1.
Engine Oil
Filter
Service — Dauntless V-6 Engine

To
replace the oil filter, use oil filter wrench, Tool

C-4065,
to remove the filter. After the filter has
been removed from the oil pump housing located
on the right front side of the engine, wipe the
housing surface clean and oil the gasket on the base of the new filter to make a
good
seal. Screw
the new filter in position until its gasket contacts
the pump housing surface, then tighten at least
one-half
turn
until filter fits snug.

Note:
Tighten by hand only, do not use a tool to
tighten.

Replace
oil filter each
6000
miles
[9.600
km.] at

engine
oil change.

B-12.
Exhaust
Manifold
Heat
Control
Valve
— Dauntless V-6 Engine

A
thermally-actuated heat control valve is located at
rear
of the right exhaust manifold of the Daunt­

less
V-6 engine.
This
valve has a bimetal thermo­
static spring which holds the valve closed when
the
engine
is cold.

Each
time the vehicle is lubricated place a few drops of penetrating oil on the valve shaft bushings

and
then work the valve by hand making sure that
the lubricant is worked into the bushings.

Note:
If the valve shaft
does
not operate freely
penetrating oil should be used to free the shaft.

B-l 3.
Positive
Crankcase
Ventilation
System

Service
the ventilation system of the
engine
each
multiple of
6000
miles
[9.600
km.] on the odometer
after
initial
2000
miles
[3.200
km.] service. Re­
place the ventilation valve each
12,000
miles
[19.200
km.].

For
information on servicing the positive crankcase
ventilation system on the
Hurricane
F4
engine
and
the Dauntless V-6 engine, refer to the Tune-up Section.

B-l4.
Distributor
— Hurricane F4 Engine

The
distributor shaft is lubricated through an oiler mounted on the side of the housing. Place three or four drops of light
engine
oil in the oiler each
2,000

miles
[3.200
km.]. Also place one drop of light
engine
oil on the wick located on the top of the
shaft, which is made accessible by removing the
rotor
arm. Sparingly apply cam lubricant to the
breaker
arm cam and place a drop of oil on the

breaker
arm pivot.

B-l
5.
Distributor
— Dauntless V-6 Engine

The
distributor has a lubricant reservoir that
car­

ries
sufficient
lubricant
for the life of the distributor.
When
servicing breaker points, place one drop of
light
engine
oil on the wick located on the top of the shaft Also, apply cam lubricant sparingly to
the breaker arm cam, and place a drop of oil on the

breaker
arm pivot.

B-l6.
Generator

On
early production vehicles oilers are provided
at each end of the generator, for lubrication
pur­

pose.
On late production vehicles one oiler is pro­
vided at the
rear
(bushing end) of the generator for lubrication purpose. Place two to four drops of
light
engine
oil in each oiler every
2,000
miles
[3.200
km.].

B-l
7. Spark Plugs

Replace
spark
plugs. Refer to Section C.

B-18.
Starting
Circuit

Check
the starting
circuit.
Refer to Section H.

B-l
9. Charging
Circuit

Check
the charging
circuit.
Refer to Section H.

B-20.
Engine Tune-Up

Refer
to Section C of this manual.

B-21.
Adjust
Fan
Belt

Refer
to Section C.

B-22.
Exhaust Emission
Control
System or
Controlled
Combustion System

•
Refer to the appropriate section in this manual.

B-23.
Exhaust System

Check
the exhaust system for leaks. Refer to Section F.

B-24.
Fuel Evaporative Emission
Control
Canister Air
Filter

The
only service required for the
F.E.E.C.
system
is cleaning the air cleaner filter mounted at the
bottom
of the canister. The filter requires replace­
ment at
12,000
mile intervals. Refer to Section

E,
Par. E-9 for service procedure.

B-25.
Oil Bath Air Cleaner
Some 'Jeep' Universal vehicles are equipped with

an
oil bath type air cleaner.
This
type air cleaner
thoroughly removes all dust from the air before it enters the carburetor, if it is properly serviced.

When
the vehicle is operated under normal condi­
tions the air cleaner must be serviced at regular

intervals
as care of the air cleaner is extremely 13

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

c

TUNE-UP
C-10.
Distributor
Service

The
distributor cap should be inspected for
cracks,

carbon runners and evidence of arcing. If any
of
these
conditions exists, the cap should be re­
placed.
Clean
any corroded high tension terminals. Inspect the rotor for cracks or evidence of
exces­

sive burning at the end of the metal strip. After

a
distributor rotor has had normal use the end
of the rotor
will
become
burned. If burning is found
on top of the rotor it indicates the rotor is too
short and
needs
replacing. Usually when this con­
dition is found the distributor cap
segment
will

be burned on the horizontal face and the cap
will

also need replacing.
Check
the condenser lead for broken wires or

frayed
insulation.
Clean
and tighten the connec­
tions
on the terminal
posts.
Be sure the condenser
is mounted firmly on the distributor for a
good
ground connection. Should a condenser tester be available the capacity
should be checked. In the absence of a tester check
by substituting a new condenser.
Examine
the distributor
points
(Fig.
C-ll).
If
they

show wear, poor mating, transferred metal, or pitting, then new
ones
should be installed.
Clean

the
points
with a suitable solvent and a stiff
bristled brush.
Check
the alignment of the point for a
full,
square
contact. If not correctly aligned, bend the station­
ary
contact bracket slightly to provide alignment,

a.
Hurricane F4 Engine (Prestolite).

The
contact gap of the distributor point on the

Hurricane
F4
engine
should be set at .020"
[0,508

mm.],
measured with a wire
gauge.
Adjustment of
the gap is accomplished by
loosening
the lock screw and turning adjusting eccentric screw (Fig.
C-12)
until correct gap is secured. Be sure that the
fiber block on the breaker arm is resting on the
highest point on the cam while the adjustment is being made. Recheck the gap after locking the
adjustment.

Apply
a thin film of cam lubricant to the cam to
lessen fiber block wear. Should a condenser tester be available the capacity
should check from .21 to .25 microfarads. In the
absence of a tester check by substituting a new
condenser.

Check
point contact spring pressure, which should
be
between
17 and 20
ounces
[0,487
a 0,56 kg.].
Check
with a spring scale hooked on the breaker

arm
at the contact and pull at right
angle
to the

breaker
arm. Make the reading just as the
points

separate. Adjust the point pressure by
loosening
the stud holding the end of the contact arm spring

and
slide the end of the spring in or out as neces­

sary.
Retighten the stud and recheck the pressure. Too low a pressure
will
cause
engine
missing at
high
speeds.
Too high a pressure
will
cause rapid wear of the cam, block, and points.
b. Dauntless V-6 Engine (Delco).

The
spark advance is fully automatic being con­
trolled by built-in centrifugal weights, and by a vacuum advance system (Fig.
C-13).
The same
checking procedures are used as (a)
above
except,

the capacity of the condenser must be .18 to .23 microfarads and the contact gap should be set at
.016"
[0,406
mm.]. Adjustment of the gap is made
by rotating the socket head adjustment screw with
a
Vs" [3,86 mm.] Allen wrench (Fig.
C-14).

The
contact spring pressure must be 19 to 23 ozs.
[0,538
a
0,652
gr.] and the cam dwell
angle
is

30°,
with distributor vacuum line disconnected.
The
preferred method of adjusting cam dwell re­
quires turning of the adjusting screw until the specific dwell
angle
is obtained as measured by a
dwell
angle
meter. Refer to Par. C-l7. To adjust
the cam dwell by an alternate method, turn the adjusting screw in (clockwise) until the
engine

FIG.
C-12—PRESTOLITE DISTRIBUTOR HURRICANE F4 ENGINE
1— Condenser
2—
Lubricating
Wick

3—
Breaker
Cam
4—
Breaker
Arm Pivot 5—
Distributor
Cap (Rotation &
Firing
Order)
6—
Distributor
Points 7— Adjustment
Lock
Screw
8—
Adjusting
Eccentric
Screw
9—
Oiler

10—Primary
Wire
26

'Jeep*
UNIVERSAL
SERIES SERVICE
MANUAL

C
12763

FIG
C-13—
DELCO
DISTRIBUTOR —
DAUNTLESS V-6 ENGINE
1—
Rotor
8—Access Passage

2—
Breaker
Plate Assembly 9—Shaft Bushing
3—
Lubrication
Reservoir 10—Vacuum Assembly
4—
Primary
Terminal
11—Cam
5—
Distributor
Housing 12—Weight Assembly 6—
Shaft
Bushing 13—Cap
7—
Gear
begins
to misfire, then
give
the wrench one-half

turn
in the
opposite
direction (counterclockwise),
thus giving the approximate cam dwell angle re­
quirement

Note:
Prestolite and Delco distributors are inter­
changeable on V-6
engine
equipped vehicles.

c.
Dauntless V-6 Engine (Prestolite).
•
Refer to Fig. C-l5.

The
Prestolite distributor installed on the V-6
engine
is similar in construction to the distributor
installed on the F4
engine
except for the addition
of a vacuum advance mechanism.

The
spark advance is fully automatic being con-
FIG.
C-14—ADJUSTING CONTACT POINT GAP —
DAUNTLESS V-6 ENGINE (DELCO) trolled by built-in centrifugal weights, and by a

vacuum
advance system.

The
same service checking procedure outlined
in
Par.
C-lOa,
are used for the Prestolite V-6

distributor
with exception of specifications. 12963

FIG.
C-15—-PRESTOLITE DISTRIBUTOR V-6 ENGINE
1—
Vacuum
Advance Unit
5—Lubricating
Wick

2—
Distributor
Points 6—Condenser

3—
Breaker
Arm Pivot 7—Adjusting
Eccentric
Screw
4—
Distributor
Cap 8—Adjusting
Lock
Screw
(Rotation
&
Firing
Order)
Specifications for the V-6 Prestolite distributor are
as follows. The condenser capacity must be .25 to 28 mfd., contact breaker arm tension 17 to 22
ounces [482 a 624 gr.], and breaker point gap .016" [0,406 mm.]. The cam angle must be set
at 29° ±3° with distributor vacuum line discon­
nected.

C-11.
Replacement and Adjustment of Prestolite

Distributor Point
Set — V-6
Engine

Replace
the Prestolite distributor contact set as
follows:
a.
Remove the distributor cap from the distributor.
Remove the rotor.
b. The condenser and primary leads are retained
by breaker point spring tension. Refer to Fig.

C-12
and C-15. Relieve spring tension to remove
the leads.
c. Remove the contact set retaining screw and remove the contact set.

d.
Remove the condenser screw and remove the condenser.
e.
Install
new parts by reversing the removal pro­
cedure. Relieve spring tension of the breaker point

spring
to install the primary and condenser leads.

f.
Rotate the crankshaft until the distributor cam
holds the distributor points to a wide-open position.

Check
the gap
between
the points. Then slightly

loosen
the contact set mounting screw and adjust
the contact point gap to the proper dimension.

Tighten
the mounting screw when correct gap is attained.
C-12. Breaker
Lever
Spring Tension
One
of the most important items to check is the

breaker
lever spring tension.
This
is checked with

a
spring scale hooked immediately behind the

breaker
lever contact. Spring tension required to
open the contact points are given in Par. C-10. 27