1953 JEEP DJ adding oil

'Jeep*
UNIVERSAL SERIES SERVICE
MANUAL

B
solvent.
Wrap
the polyurethane element in a clean

dry
cloth and
squeeze
to remove all possible sol­
vent. Do not wring the element or it may
become
torn.
After cleaning, oil the polyurethane element

liberally
with
engine
oil
(SAE
10W30) and
squeeze

to evenly distribute the oil through the element and to remove
excess
oil. The element should be damp

with
oil, not dripping.
Install
the polyurethane element on the paper element, taking care to have
edges
of the polyurethane element over the plastic end plates of the paper element.

Replace
the complete air cleaner element assembly every
24,000
miles
[38.400
km.]. Replace more
frequently if there is any apparent damage or evidence of plugging.

The
crankcase ventilation filter should be replaced, not cleaned, every
6,000
miles
[9.600
km.]. The
filter
is located inside the air cleaner housing.
12992

FIG.
B-7—DRY-TYPE
AIR
CLEANER DAUNTLESS
V-6
ENGINE

1—
Crankcase
Ventilation
Filter

2—
Polyurethane
Element

3—
Paper
Element
B-27.
Steering
Gear

Check
that the steering gear lubricant is at the
level of the fill-hole. If not, add lubricant to the
level of the fill-hole with the lubricant recom­ mended in the
Lubrication
Specifications. If abnor­

mally
low, check the steering gear for possibility
of leaks.

B-28.
Cooling System
Check
the coolant level in the
radiator.
It should be

half
an inch below the neck. If not,
fill
the radiator
to
half
inch below the neck with the proper coolant.

Refer
to Section G.

If
the level of the coolant is abnormally low, check
the radiator,
hoses
and water pump for possible
leaks.
If a leak is suspected, refer to Section G.

B-29.
Clean
Exterior
of Radiator

For
proper cooling efficiency the radiator should be cleaned of foreign objects. Refer to Section G.

B-30.
Transmission
and
Transfer Case
Lubricant
Level
Cheek

•
Refer to Par. B-31 through B-33 as applicable.
B-31.
General

All
transfer cases and transmissions should be

serviced
separately even though drilled passages
are
provided for oil circulation
between
some
trans­
mission and the transfer case housings. Procedure

from
the appropriate Par. below should be fol­ lowed to check the lubricant level of the various

types
of transfer cases and transmissions.
If
the transfer case or transmission fluid levels
are
found to be abnormally low, check both units
for any possible leaks.

B-32.
Transfer
Case
:

The
transfer case fill-hole is located on the right side of the transfer case housing. To check the
lubricant
level, remove the
fill
plug.
Lubricant

should be level with this fill-hole. If not, bring up to level by adding make-up lubricant as specified

in
the
Lubrication
Specifications.

B-33.
Transmission

The
transmission fill-hole is located on the right side of the transmission housing. To check the
lubricant
level, remove the
fill
plug.
Lubricant

should be level with this fill-hole. If not, bring
up to level by adding make-up
lubricant
as specified
in
the
Lubrication
Specifications.

B-34.
Transmission and Transfer
Case
Lubricant
Change

•
Refer to Par. B-35 through B-37 as applicable.

B-35.
General

Transfer
case and transmission lubricants should
be changed at the same time.

B-36.
Transfer
Case

To
drain
the transfer case, first remove the transfer
case fill-hole plug and then the transfer case
drain-

hole
plug. Let all fluid
drain
from case.
Then
install
the transfer case drainhole plug, and
refill
the
transfer
case through the fill-hole using the correct

lubricant
as specified in the
Lubrication
Specifica­
tions.

At
30,000
mile
[48,000
km.] intervals lube the

transfer
case shift levers with
Lubriplate
No.
130AA.
Late
models have a lube fitting. To lube
older models, (without lube fitting) remove the

bottom
cover of the case, clean thoroughly and
pack
case
full
of lubricant.

B-37.
Transmission (3-Speed)

To
change the lubricant on all vehicles equipped

with
a three speed synchromesh transmission,
drain

the old fluid by first removing the fill-hole plug

and
then removing the drainhole plug. Since on

some
transmissions there are drilled passages be­ tween the transmission and transfer case that allow

oil
to circulate
between
the two units, the transfer
case should be drained before refilling the trans­

mission.

When
all the fluid is completely drained, replace
the drainhole plugs only. For the correct specifi­
cations and quantity, refer to the
Lubrication
Specifications. 15

'Jeep'
UNIVERSAL SERIES SERVICE
MANUAL

D
is .004" to .007"
[0,102
a 0,178 mm.] as measured
by a dial indicator. Should a check
show
too little
end play, place a shim of suitable thickness
between

the camshaft shoulder and the spacer. Too much
end play may be corrected by removing shims or
dressing off the spacer a slight amount. See Fig. D-33.
D-82. Install Crankshaft and Bearings

Fit
the three upper main bearings
into
their
respective
locations
in the cylinder block. Fit the
three lower main bearings
into
their respective
bearing caps.

NOTE:
It is
possible
to incorrectly install the front main bearing. The bearing is properly installed in
the cap with the narrower of the two radial oil

grooves
toward the front
edge
of the cap. If this
bearing is not properly installed, the oil
grooves
in
the two halves of the bearing will not match at the
parting line and premature failure of the bearing

will
result.
Lubricate
all bearing surfaces
generously
with
clean, light
engine
oil. Place the crankshaft in

position
in the cylinder block and install the main
bearing caps. Torque the
bolts
65 to 75 lb-ft.
[9,0 a 10,4 kg-m.] rotating the crankshaft after
each bearing cap is
tightened

D-83. Check Crankshaft End-Play

End
play of the crankshaft is set by the running
clearance
between
the crankshaft thrust washer
and the front
face
of the front main bearing. The
standard end play is .004" to .006"
[0,102
a 0,152
mm.] which is controlled by .002"
[0,051
mm.]
shims placed
between
the thrust washer and the
shoulder on the crankshaft. Check the end play
with a dial indicator as shown in
Fig.
D-34. If clear­ ance is incorrect, adjustment is made by adding or
removing shims.
Install
the thrust washer with the
beveled
inner

edge
toward the front bearing.
10668

FIG.
D-33—VALVES, CAMSHAFT,
AND
TIMING GEARS
1— Nut
2—
Left
Rocker Arm
3—
Rocker
Arm Shaft Spring
4—
Rocker
Shaft
Lock
Screw 5—
Rocker
Shaft
6— Nut 7—
Right
Rocker Arm
8—
Rocker
Arm Shaft Bracket
9—
Intake
Valve Tappet Adjusting Screw
10—
Intake
Valve Upper Retainer
Lock

11—
Oil
Seal
12—
Intake
Valve Spring Upper Retainer 13—
Intake
Valve Spring
14—
Intake
Valve Push Rod 15—
Intake
Valve
16—
Intake
Valve Tappet
17—
Camshaft

18—
Camshaft
Front Bearing
19—
Camshaft
Thrust Plate Spacer
20—
Camshaft
Thrust Plate
21— Bolt and Lockwasher
22— Bolt 13—Lockwasher
24—Camshaft
Gear
Washer 25—
Crankshaft
Gear

26—
Camshaft
Gear

27— Woodruff Key No. 9
28—
Exhaust
Valve Tappet
29— Tappet Adjusting Screw
30—
Spring
Retainer
Lock

31— Roto Cap Assembly
32—
Exhaust
Valve Spring
33—
Exhaust
Valve
34—
Rocker
Shaft Support Stud
35—
Washer

36—
Rocker
Arm Cover Stud 63

'Jeep9
UNIVERSAL
SERIES SERVICE
MANUAL

N
c.
Check
side gear clearance as described in Par.
N-18.

d.
Examine contacting surfaces of ring gear and
differential case for
burrs
or foreign matter.

e.
Assemble ring gear on differential case with as­sembly
hole
on each lined up.

f.
Tap ring gear
into
place with mallet.
g.
Install
ring gear screws. Torque 35 to 55 lb-ft. [4,84 a 7,60 kg-m.].

N-18.
Adjustment
of
Differential
Side
Gears

Clearance
between
the differential side gears and differential case should be .000" to .006"
[0,000
a
0,192 mm.] Procedure for checking clearance is as
follows:

a.
With
the differential positioned as shown in

Fig.
N-31, tap the differential lightly on a flat
sur­
face so the differential gears
settle
into
proper
position.
b. Measure the clearance
between
side gears and
the case with leaf feeler
gauge
as illustrated. c. If the clearance
exceds
.006" add shims
between

the side gears and the case. To bring the clearance
within specified tolerance, shims in
these
thick­
nesses
are available.
.004"
[0,102
mm.], .006"
[0,152
mm.], .008"
[0,203

mm.].
If shims are required, at least one shim
should be placed on each side and the shim packs kept as even as possible. After adding shims, repeat
the clearance check.
10009

FIG.
N-31—CHECKING SIDE GEAR CLEARANCE N-l9.
Adjustment of
Differential
Bearing Preload
and
Ring
Gear
Backlash

Refer
to Fig. N-30.

The
adjustment of the differential bearings is main­
tained by the use of shims placed
betwen
the dif­
ferential case and the differential bearing. Proce­
dure for adjusting bearing preload is as follows:

a.
Install
the differential case and bearings in the
axle housing without shims and with the bearing
cups snug.
b. Holding the ring gear in contact with the pinipn

and
using a screwdriver blade to
move
the differen­

tial
bearing cups toward the center, insert feeler

gauge
on each side
between
differential bearing cup and the axle housing.
There
should be only
.001" to .002"
[0,025
a 0,051 mm.] backlash
remaining with the feeler
gauge
inserted.

c.
After the shim pack requirement for each bear­
ing has
been
established remove the differential
assembly. Make up shim packs and
keep
them separated.

d.
Add an additional .015"
[0,381
mm.] thickness:
of shims to the pack on the
tooth
side of the ring gear.

e.
Place the differential bearing shim packs on the
differential case under each bearing.
Install
bear­

ings
with
Driver
C-3716 for Model
27AF
axles
and
Driver
W-188 for Model 44 axles. See Fig. N-32.

Note:
When overhauling the Model
27AF
front
axle differential, check the axle inner oil seals. Should new seals be required, install them using
Tool
W-128 as shown in Fig. N-33. When installing
the axle differential in the axle housing, use
Spreader
Tool W-129.
f. Attach the
Carrier
Spreader W-129, (see
note

Par.
N-12) install a
dial
indicator, (Fig. N-19) and spread the
carrier
a maximum of .020"
[0,508

mm.].
FIG.
N-32—DIFFERENTIAL BEARING DRIVER

299