transmission JEEP DJ 1953 Workshop Manual
[x] Cancel search | Manufacturer: JEEP, Model Year: 1953, Model line: DJ, Model: JEEP DJ 1953Pages: 376, PDF Size: 19.96 MB
Page 252 of 376

J
THREE-SPEED
TRANSMISSION
12866
FIG.
J-l8—REMOVING-INSTALLING MAINSHAFT GEAR ASSEMBLY
1285S
FIG.
J-19—REMOVING-INSTALLING
LOCKPLATE
1— Reverse
Idler
Shaft 2—
Lockplate
3—
Countershaft
12884
FIG.
J-20—REMOVING-INSTALLING COUNTERSHAFT
1—Arbor
Tool W-335
2
—Counter
gear
3—Countershaft 252
FIG.
J-21—REMOVING-INSTALLING
REVERSE
IDLER
GEAR
1—
Washer
2—Arbor
Tool W-336
3—
Reverse
Idler
Gear
4— Reverse
Idler
Shaft k. Remove the countershaft gear assembly and the
two thrust washers. Remove spacer washers, bear ing rollers, and spacer from the countergear hub
assembly for inspection.
I.
Using Tool W-336 drive the reverse idler shaft
rearward,
out of the case. Remove reverse idler
gear, washers, and roller hearings as an assembly.
Refer
to Fig. J-21.
m.
Remove the clutch hub snap ring and the
second-third synchronizer assembly from the main-
shaft. Refer to Fig. j-22.
V
^^r"***
12852
FIG.
J-22—REMOVING-INSTALLING SECOND-
THIRD
CLUTCH
HUB
SNAP
RING
1—
Second-Third
Synchronizer Assembly 2— Snap
Ring
3—
Mainshaft
n.
Remove second
speed
gear from mainshaft.
o.
Remove reverse gear from mainshaft.
p.
Remove the clutch hub snap ring, and the low
synchronizer assembly from the mainshaft. Refer
to Fig. J-23.
q. Remove low
speed
gear from mainshaft.
r.
This
completes
the transmission disassembly.
Page 253 of 376

'Jeep'
UNIVERSAL SERIES
SERVICE
MANUAL
FIG.
J-23—REMOVING-INSTALLING LOW
CLUTCH
HUB
SNAP
RING 1— Mainshaft
2— Snap
Ring
3—
Snap
Ring
Groove 4—
Low
Synchronizer Assembly
J-17. DISASSEMBLY SYNCHRONIZER
ASSEMBLIES
Important:
Should a synchronizer assembly
(either low-and-reverse or second-and-high) be re
placed for any reason on a cane shift transmission,
the shift fork that operates the synchronizer being
replaced must have an identifying letter "A" ap pearing just under the shaft
hole
on the side
opposite
the pin. If the letter "A"
does
not appear
on the existing fork, it must be replaced with a fork that has a letter "A" appearing thereon.
FIG.
J-24—SECOND-THIRD SYNCHRONIZER
ASSEMBLY
Refer
to Fig. J-24.
Second-Third
Synchronizer Unit.
a.
Remove springs (one on each side of unit). b.
Mark
sleeve
and hub
before
separating to en
sure proper installation at time of assembly.
c. Remove hub from
sleeve.
d.
Remove the three synchronizer plates from third
speed
side of the hub. e.
Clean
and inspect synchronizer assembly parts.
f. Assemble synchronizer in reverse order of dis assembly, making certain the two synchronizer
spring
openings
are installed 120° of each other,
with spring tension
opposed.
Low
Synchronizer Unit.
Refer
tc- Fig. J-25.
The
low synchronizer assembly is serviced in the
same manner as second-third with exception of one
synchronizer spring.
12853
FIG.
J-25- -LOW SYNCHRONIZER
ASSEMBLY
1—
Synchronizer
Spring (2)
2—
Clutch
Hub
3—
Clutch
Sleeve
4— Shifter Plate
1
—Clutch
Hub
2— Shifter Plate
3—
Synchronizer
Spring (1)
4—
Clutch
Sleeve
J-18.
TRANSMISSION
CLEANING
AND
INSPECTION
Refer
to Fig. J-13.
a.
Wash transmission case inside and
outside
with cleaning solvent.
b.
Check
bearing and shaft bores. Inspect the case
for
cracks.
Check
the front and
rear
faces
and dress off any burrs with a fine
mill
file. If cracks are
found and bores are not ture, replace the case.
c.
Clean
and inspect all gears and bronze blocking
rings for
cracks,
chipped or cracked
teeth,
or ex cessive wear of the
teeth.
Note:
Whenever any transmission gear requires
replacement, the gear with which it
meshes
should
also be replaced.
d.
Inspect all bearings or bushings for wear or damage.
e.
Check
the second-third, and low synchronizer clutch
sleeves
making certain
they
slide freely on the clutch hub. 253
Page 254 of 376

J
THREE-SPEED TRANSMISSION
J-19.
TRANSMISSION
REASSEMBLY
—
T14A
Note; Lubricate all internal transmission
parts
before
assembly
using the proper lubricant.
a. Position
reverse
idler
gear
with
Arbor
Tool
W-336,
roller bearings, and thrust
washers
in the
case.
Install
reverse
idler shaft forcing out
Tool
W-336.
Make certain the slot end of the idler shaft
is correctly aligned to receive the lockplate. Refer
to Fig. J-19.
FIG.
J-26—COUNTERSHAFT GEAR
BEARING ARBOR
1—
Roller
Bearings 2— Spacer
3—
Arbor
Tool W-335
b.
Assemble the
countergear
center
spacer,
four
bearing
spacers,
and countershaft bearing rollers
in
the countershaft
gear
hub
assembly
as
follows,
using Arbor
Tool
W-335.
Place
the
center
spacer
inside the hub and insert Arbor
Tool
in the
spacer.
Place
a bearing
spacer
at
each
end of the
center
spacer
and load a set of bearing rollers, and
place
a bearing
spacer
at
each
end to complete the as
sembly. Refer to Fig. J-26 and J-27.
c.
Install large
countergear
thrust
washer
in the
front
of the
case.
Position small thrust
washer
on
the countershaft
gear
hub
with
lip facing groove in
the
case.
Holding the countershaft
gear
assembly
in
position, start the countershaft in the
rear
of the
case
with
the lockplate slot toward the
rear
and the
slot in alignment
with
the slot in the
reverse
idler
FIG.
J-27—COUNTERSHAFT BEARINGS
AND SPACERS INSTALLED
1— Countershaft
Gear
2— Countershaft Bearing Rollera
3— Countershaft
4—
Spacers
5
—Center Spacer
FIG.
J-28—LOCKPLATE INSTALLATION
1— Reverse Idler Shaft 2—
Lockplate
3— Countershaft
gear
shaft.
Press
shaft through the
gear
hub as
sembly and into the front of the
case
forcing out
Tool
W-335.
d.
Locate the lockplate in the slots of the
reverse
idler
shaft and countershaft. Tap the two
shafts
alternately
until
lockplate is tight
against
case.
Refer to Fig. J-28.
e. When assembling the mainshaft,
first
install mainshaft low
gear
and bronze blocking
ring.
In
stall
the low synchronizer
assembly,
then install
the
select
fit
snap
ring.
Refer to Fig. J-23.
Note; Mainshaft
snap
rings are
select
fit to
eli
minate clutch hub and main drive
gear
bearing
end play. Make certain correct
snap
ring
is installed at
assembly.
f.
Install the mainshaft
second
gear
and bronze
blocking
ring.
Install the second-third synchronizer
assemblv,
then install
select
fit
snap
ring.
See
Fig.
J-22.
g.
Install
reverse
gear
on mainshaft.
h.
Install the mainshaft and
gear
assembly
as a
unit,
through the top cover opening of the trans
mission
case.
Refer to Fig. J-18.
i.
Install bronze blocking
ring
onto the
second-
third
synchronizer
assembly.
j.
Install main drive
gear
roller
bearings
using low
melting
point
grease
to hold them in place. Refer
to Fig. J-29.
k. Install the main drive
gear
and oil retainer
washer
(slinger) into the
case
with
the cutaway
portion
of the
gear
positioned downward toward
the
countergear
assembly.
Guide main drive
gear
onto the mainshaft using
care
not to drop the roller bearings, as shown in Fig. J-30. 254
Page 256 of 376

THREE-SPEED
TRANSMISSION
ing
snap
ring.
Care should be taken to
install
the
proper
snap
ring
at
these
locations.
fl.
Install
the mainshaft rear bearing
adapter,
spacer,
transfer
case
drive
gear,
flat
washer, and
nut.
Torque nut 130 to 170
lb-ft.
[17,9 a 23,5
kg-m.].
Refer to Fig. J-15.
o. Check the main drive bearing retainer oil seal.
If
seal is
worn
or damaged it must be replaced.
Refer to Fig. J-33. 12858
FIG.
J-34—INSTALLING
MAIN
DRIVE GEAR BEARING RETAINER
-Gasket
-Bearing
Retainer
p.
Install
main drive
gear
bearing retainer gasket,
and retainer assembly. Make certain the oil drain
hole
slot in the retainer housing and gasket are
aligned.
Install
the three
ferry
type screws and
washers. Refer to Fig. J-34.
q.
Install
the transmission
case
cover gasket,
p.
Position the transmission
gear
train
and
shift
cover housing assembly in neutral. Enter the
shifter
forks
into
the
clutch
sleeves
and
align
cover,
case
and gasket holes.
Install
capscrews and
lock
washers
and torque 8 to 15
lb-ft.
[1,1 a 2,1
kg-m.].
Refer to Figs. J-35 and J-36.
S.
This completes the transmission reassembly. 12857
FIG.
J-35—MAINSHAFT
GEAR TRAIN
—
NEUTRAL
1— Reverse Gear
2— Low
Synchronizer Assembly
3— Low
Gear
4— Second Gear
5—
Second-Third
Synchronizer Assembly
6—
Main
Drive
Gear
FIG.
J-36—INSTALLING CANE SHIFT
COVER
ASSEMBLY
1—
Control
Housing'
Cover•''
2—
Gasket
3—
Second-Third
Shift
Fork
4— Low-Reverse
Shift
Fork 256
Page 257 of 376

'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL
J J-20
TRANSMISSION
SERVICE
DIAGNOSIS
SYMPTOMS
PROBABLE
REMEDY
Lock
in Two
Gears
Replace
Poppet
or Shift Levers
Slips
Out of High Gear Transmission Misaligned with Bellhousing
End
Play in Main Drive Gear Damaged Pilot Bearing or Front Bearing.
Slips
Out of Second
Worn
Gear Replace
Weak
Poppet
Spring Replace
Noise
in Low Gear
Gear
Teeth Worn Replace Gears
Shifting
Shoe
Bent Replace
Shoe
Lack
of Lubrication Drain and Refill
Grease
Leak into Bellhousing Gasket Broken Front Bearing Retainer Replace
Transmission Main Drive Gear Oil Seal Replace Align Transmission Case to Bellhousing
and Bellhousing to Engine
Tighten Front Retainer
Replace
J-21.
TRANSMISSION
SPECIFICATIONS
HURRICANE
F4
ENGINE
3-SPEED
Vehicle:
CJ-3B,
CJ-5,
CJ-5A,
CJ-6,
CJ-6A
DJ-5,
DJ-6
Make
Type
Speeds
Ratios: —
First
Second
Third
Fourth
Warner
T90C
Synchronous Mesh
3 Forward — 1 Reverse
3.339
to 1 1.551 to 1 1.000 to 1
Warner
T96
Synchronous Mesh
3 Forward — 1 Reverse
2.605
to 1 1.630 to 1
1.000 to 1
Reverse
Interlock
Poppet
Clearance. . .
3.798
to 1
3.536
to 1
.001" to .007"
[0,025
a 0,178 mmJ
DAUNTLESS
V-6
ENGINE
3-SPEED
Vehicle:
CJ-5,
CJ-6,
CJ-5A,
CJ-6A
DJ-5,
DJ-6
Late
CJ-5, CJ-6
Make
Warner
Warner Warner
Model
AS7
T86AA
AS9
T86AA
T14A
Type..
Synchromesh
Synchromesh Synchromesh
Speeds
3 Forward — 1 Reverse 3 Forward — 1 Reverse 3 Forward — 1 Reverse
Ratios: —
First
2.798
to 1
2.798
to 1
3.100 to 1
Second
1.687 to 1 1.687 to 1 1.612 to 1
Third
1.000 to 1
1.000 to 1 1.000 to 1
Reverse
3.798
to 1
3.798
to 1 3.100 to 1 257
Page 259 of 376

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL
Jl
FOUR-SPEED
TRANSMISSION
Contents
SUBJECT
PAF.
GENERAL.
Jl-1
FOUR-SPEED
TRANSMISSION
REMOVAL.
Jl-2
Four-Speed Transmission
Disassembly
.
Jl-3 Four-Speed Transmission Control Housing
Disassembly
Jl-4
Four-Speed Transmission Reassembly Jl-5
SUBJECT
PAR.
Four-Speed Transmission Control Housing
Reasse mbly Jl-6
Transfer
Case Adapter Plate Oil Seal .
.
Jl-8
Four-Speed Transmission Installation Jl-7
FOUR-SPEED
TRANSMISSION
SPECIFICATIONS.
.
.
Jl-10
SERVICE
DIAGNOSIS
Jl-9 10771
FIG.
Jl-1—FOUR-SPEED
TRANSMISSION
1—
Control
Housing Gasket
2—
Control
Housing Assembly
3— Mainshaft Assembly
4—
Thrust
Washer
5—
Thrust
Washer
6— Reverse Shifting
Shoe
7— Reverse Shifting Arm
8—
C-Washer
9— Reverse Shifting Arm Pivot
10—
O-Ring
11— Reverse Idler
Gear
Assembly
12— Snap Ring
13—
Thrust
Washer
14—
Sleeve
15— Bearing Rollers
16— Spacer
17— Reverse Idler
Gear
18— Pipe Plug
19— Countershaft Gears 20— Bearing Rollers
21— Spacer 22— Spacer
23—
Thrust
Washer
2
4
—Bellhousi ng-to-Transmission Adapter Plate
25— Bearing Retainer
26— Bearing Retainer Bolt
27— Bearing Retainer Lockwasher
28— Bearing Retainer Gasket
29—
Main
Drive
Gear
30— Bearing Rollers 31— Transmission Case
32— Adapter Plate Lockwasher
33— Adapter Plate Capscrew
34— Side Opening Cover Gasket
35— Side Opening Cover Bolt
36— Side Opening Cover Lockwasher
37— Side Opening Cover 38— Countershaft
39— Shifting Arm Pivot Taper Pin
40— Bearing
41— Snap Ring
42—
Oil
Seal 43— Spacer
44— Reverse-Idler
Gear
Shaft 45—
Lock
Plate
46—
Lock
Plate Lockwasher
47—
Lock
Plate Bolt
48— Gasket
49— Adapter Plate 50— Adapter Plate Lockwasher
51— Adapter Plate Bolt
52— Cotter Key
53— Nut 54— Washer
55— Gasket 259
Page 260 of 376

Jl
FOUR-SPEED
TRANSMISSION
J1-1.
GENERAL
A
model T-98 four-speed transmission with a cane- type shift is optional on 'Jeep* Models CJ-5 and
CJ-6
equipped with the Hurricane F4
engine.
A model T-18 four-speed transmission is optional on
the 'Jeep* Model
CJ-5
equipped with the Dauntless
V6
engine.
These transmissions provide four
speeds
forward
and one reverse with synchromesh
engage
ment in second,
third,
and fourth speed.
For
quick identification, the optional
4-speed
transmission is 11%"
[30,16
cm.] long whereas the
standard
3-speed
transmission is 8"
[20,32
cm.] long. However the instructions for removal and
installation of the two transmissions are the same.
J1-2.
Four-Speed
Transmission Removal Use the procedure outlined under the heading,
"TRANSMISSION
REMOVAL"
Section J Par.
J-6.
FIG.
Jl-2—FOUR-SPEED TRANSMISSION MAIN DRIVE
GEAR
1—
Snap
Ring
3—Bearing 5—Main
Drive
Gear
2—
Snap
Ring
4—Washer 6—Bearing Rollers
FIG.
Jl-3—T-98
FOUR-SPEED TRANSMISSION MAIN SHAFT 1—
Blocking
Ring
2—
Direct
and
Third
Clutch
Sleeve
3—
Snap
Ring
4—
Spring
5—
Shifting
Plate
6—
Direct
and
Third
Clutch
Hub 7—
Third
Speed
Gear
Assembly
8—
Snap
Ring
9—Thrust
Washer
10—
Bearing
Rollers
11—
Second Speed
Gear
12—
Spacer
13—
Mainshaft
14—
Blocking
Ring
15—
Shifting
Plate
16— Poppet
Spring
17—
Ball
18—
Low
and Second
Clutch
Hub 19—
Retaining
Ring
20—
Low
and Second Speed
Gear
21—
Second Speed
Synchronizer
Assembly
22—
Direct
and
Third
Synchroniser Assembly 260
Page 261 of 376

'Jeep*
UNIVERSAL
SERIES SERVICE
MANUAL
Jl
1—
Blocking
Rir
2—
Direct
and 1
3—
Snap
Ring
4—
Spring
5—
Shifting
Plat
6—
Direct
and 1 7—
Third
Speed
J1-3
4-Speed Transmission Disassembly
•
Refer to Fig. Jl-1.
Note;
The
models
T-98 and T-18 four-speed
transmission are similar in design with exception of
the second
speed
gear-to-mainshaft arrangement.
In
the model T-18 transmission, the second
speed
gear is a slide fit on the mainshaft, whereas in the
model T-98 transmission roller bearings and a
spacer are required in this area. Refer to Figs. Jl-3
and
Jl-4.
a.
Remove the transmission to transfer case adapter plate and gasket. Remove the oil seal from
the plate and, if damaged, discard the seal.
b. Remove the transmission control housing as
sembly. Refer to paragraph Jl-4 for its dis
assembly.
c. To make certain the two blocking rings, direct-
and-third
clutch hub, and direct-and-third clutch
sleeve
will
be assembled in their original relation
ship,
mark them with a quick drying lacquer or an
electric pencil. Also mark the blocking ring, low-
and-second clutch hub, and the low-and-second
speed
gear.
d.
Slide the low-and-second
speed
gear toward the rear of the transmission case.
e.
Disengage
the reverse shifting arm and reverse shifting
shoe
from the reverse idler gear. Remove
the arm from the reverse shifting arm pivot.
f. Move the low-and-second
speed
gear
into
neutral position.
g. Remove the bearing retainer and gasket.
Remove the snap rings from the main drive gear
and
the outer race of the ball bearing.
h.
With a bearing puller, remove the main drive
gear ball bearing. 1436S
i
Hub
Gear
izer
Assembly
ironizer
Assembly
i.
Remove the oil slinger.
j.
Remove the snap ring from the outer bearing
race
of the transmission mainshaft ball bearing.
k. With a bearing puller, remove the mainshaft
ball
bearing.
Note:
It may be necessary to drive the mainshaft
rearward
by striking the end of the main drive gear with a lead hammer to get sufficient clearance
to install the bearing puller plates.
I.
Slide the direct-and-third clutch
sleeve
to the
rear
(third
speed)
position. Separate the mainshaft
assembly from the main drive gear. Be careful
not to
lose
any of the mainshaft pilot bearing
rollers.
m.
Lift
the mainshaft assembly out of the top
of the transmission case.
n.
Remove the main drive gear from the trans
mission case.
o. Remove the mainshaft bearing rollers from the gear.
p.
Mark
relationship
between
synchronizer hubs
and
the splines on the mainshaft.
q. Begin disassembly of the main shaft assembly by removing the snap ring which holds the direct
and
third synchronizer assembly on the mainshaft,
r.
Remove the front blocking ring from the front
of the shaft.
s. Slide the direct-and-third-synchronizer assembly
and
the third-speed-gear assembly off the main-shaft.
t. Remove the snap ring at the rear of the main-
shaft. Slide the second synchronizer assembly and the blocking ring off the mainshaft.
FIG.
Jl-4—T-18
FOUR-SPEED TRANSMISSION MAINSHAFT ASSEMBLY
ng 8—Snap
Ring
15—Ball
third
Clutch
Sleeve
9—Thrust
Washer 16—Low and Second
Clutch
10—
Second
Speed
Gear
17—Retaining
Ring
11—
Mainshaft
18—Low and Second Speed
te 12—Blocking
Ring
19—Second Speed
Synchroni
rhird
Clutch
Hub 13—Shifting Plate 20—Direct and
Third
Synch
Gear
Assembly 14—Poppet
Spring
261
Page 262 of 376

Jl
FOUR-SPEED
TRANSMISSION
U.
On the T-98 transmission remove the snap rings
holding the thrust washer, bearing rollers, second-
speed
gear, and spacer on the mainshaft. Slide
these
components
off the shaft. Refer to Fig. Jl-3.
Note:
The second
speed
gear in the T-18 trans
mission is a slide fit
onto
the mainshaft and
does
not contain roller bearings or a spacer.
v. If the synchronizer assemblies are to be dis
assembled and serviced proceed as follows:
Wrap
the
second-speed
synchronizer assembly in a cloth
to prevent losing the lock balls and springs. Push the clutch hub out of the low-and-second-speed
gear in a direction
opposite
the shift fork
groove.
Remove the cloth.
Lift
the balls, springs, and
plates out of the hub.
w. Remove the lockplate for the countershaft and
reverse idler gear shaft.
x.
Use a pry bar in the
slot
of the reverse idler gear
shaft to
loosen
the shaft.
Then,
slip the reverse
idler
gear shaft out of the housing and gear.
Lift
the reverse idler gear assembly from the transmission case.
y. To remove the countershaft, use a heavy brass
drift
and drive the countershaft toward the
rear
of
the transmission case. When the countershaft end
is just about even with the inside of the trans mission case, use a dummy shaft to force it the
remainder of the way. (Since a dummy shaft is a
FIG.
Jl -5—FOUR-SPEED TRANSMISSION CONTROL PARTS
1—
Shift
Lever
2—
Control
Housing Pin
3—
Shift
Handle
4—
Control
Housing Cap 5—
Washer
6—
Control
Lever
Spring
7—
Breather
Assembly
8— Reverse Shift
Rail
9—
Shift
Rail
Interlock Plunger
10—Expansion
Plug 11—
Low
and Second Shift
Rail
12—
Shift
Rail
Interlock Pin
13—
Direct
and
Third
Shift
Rail
14—
Control
Housing
15—
Shift
Rail
Poppet Spring
16—
Shift
Rail
Poppet
Ball
17—
Lockwire
18—
Low
and Second Shift
Fork
19—
Lock
Pin
20—
Shift
Rail
End 21—
Direct
and
Third
Shift
Fork
22— Reverse Plunger
23— Reverse Plunger Spring
24— Reverse
Rail
End
25—
Cotter
Pin
26— Reverse Plunger Poppet Spring
27— Reverse Plunger Poppet
Ball
28—
C-Washer
262
Page 263 of 376
![JEEP DJ 1953 Workshop Manual
Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL
Jl
necessity for assembly, one should be made at this
time to assist on disassembly. One can be made by
using a \Y%N [2,86 cm.] diameter steel rod cut JEEP DJ 1953 Workshop Manual
Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL
Jl
necessity for assembly, one should be made at this
time to assist on disassembly. One can be made by
using a \Y%N [2,86 cm.] diameter steel rod cut](/img/16/57041/w960_57041-262.png)
'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL
Jl
necessity for assembly, one should be made at this
time to assist on disassembly. One can be made by
using a \Y%N [2,86 cm.] diameter steel rod cut to
9.850*
{25,02
cm.] long.
Break
sharp
edges
with a
mill
file.) Keep the dummy shaft in contact with
the countershaft at all times to prevent dropping
the bearing rollers or thrust washers,
z.
With
the dummy shaft in position, place the
transmission
case on its side and carefully
roll
the countershaft gear cluster out of the case,
aa.
Complete the disassembly by removing the dummy shaft, thrust washers, four
sets
of bearing
rollers,
and spacers.
bb.
To disassemble the reverse idler gear assembly,
remove one of the snap rings and tap out the
washers,
both
sets
of bearing rollers, center spacer,
and
sleeve.
Remove the remaining snap
ring.
J1-4.
4-Speed
Transmission
Control
Housing
Disassembly
•
Refer to Fig. Jl-5.
The
gearshift lever, spring, and spring seat were previously removed for removal of the transmission
from
the vehicle.
a.
Remove the lock pins from the gearshift forks
and
gearshift rod ends. Remove the expansion plugs
from
the front and
rear
of the gearshift lever base. Remove back-up light switch.
b.
Remove the center (third and high) gearshift
rod
first. Drive this gearshift rod out the
rear
of the gearshift lever base. As the gearshift rod is
withdrawn
from the center section of the gearshift base, remove the interlock pin from the cross
over
hole
in the gearshift rod. Before the gearshift
rod
is removed from the center section of the gear
shift base, place a finger over the
hole
to prevent
loss
of the
ball
and spring.
Then
remove the rod.
c»
Remove the low- and second-speed gearshift rod
in
the same manner.
d.
Remove the gearshift rod lock balls and springs
and.
with a piece of
wire,
push the two gearshift rod
interlock
plungers out of the pockets in the center
section of the gearshift base.
In
the reverse gearshift rod end is a spring-loaded
plunger which prevents the
driver
from accidentally
shifting into reverse gear. Should this part require
servicing,
proceed as follows:
Remove the cotter key from the rod end assembly
and
at the same time hold a finger over the
hole
to prevent
loss
of the spring.
Then
shake out the
spring
and
ball.
Compress the plunger and spring
until
the C-washer
groove
just clears the end of
the casting. Remove the C-washer.
J1-5.
4-speed
Transmission Reassembly •
Refer to Fig. Jl-1.
Assemble the unit in the reverse order of dis
assembly noting the following points:
a.
Assemble the countershaft assembly with the
fabricated
dummy shaft. The bronze front thrust
washer
and the steel backed bronze
rear
thrust
washer
should be coated with stiff lubricant and
installed
with the lugs
engaged
in the notches
in
the end of the gear cluster. Place the assembly
in
the transmission case and install the counter
shaft from the
rear,
keeping the countershaft and
dummy shaft in contact to prevent dropping
bearing
rollers or washers. Tap the countershaft
lightly into position in the front of the case but
do not seat it until the reverse idler gear assembly
and
shaft have been installed in the case.
b.
Install
the reverse idler gear shaft in the case
until
the lock plate slot is adjacent to the slot in
the countershaft. Insert the lock plate in the
slots
of the shafts making sure the plate ends are square
with
the slots.
Install
the lock plate screw and
lockwasher
to act as a pilot while tapping the
shafts alternately into position in the case. Tighten
the lock plate screw securely.
c.
Begin assembly of the second speed synchronizer assembly (see
Fig.
Jl-6) by installing the low-and
-
second-speed clutch hub in the low-and-second-
speed gear.
Install
the retaining ring in the speed gear.
Install
the retaining ring in the low and
FIG.
Jl
-6—ASSEMBLING
SECOND-SPEED
SYNCHRONIZER
1—
Low
and Second
Clutch
Gear
2—
Ball
3—
Low
and Second
Clutch
Hub
4—
Shifting
Plate
second speed gear. Slide the hub out of the gear
in
the direction
opposite
the shift fork
groove
until
the
holes
in the hub are clear of the gear.
Install
the shifter plates and springs. Push the
hub back into the gear until the springs touch the
internal
teeth
of the gear. Push one of the shifter
plates toward the center of the gear while installing
ball.
See
Fig.
Jl-6 .
This
will
hold the
ball
in position.
Install
the other two balls in the same manner.
Be
careful when rotating the assembly to prevent the hub from slipping out of the gear. When the
balls
are installed, push the hub into the gear
until
the balls snap into the neutral position.
d.
Assemble the
direct
-
and
-
third
synchronizer as
sembly in accordance with the instructions given
in
Section J, Par.
J-lle.
e.
Start
assembly of the mainshaft assembly by 263