1993 DODGE TRUCK Service Repair Manual

21
- 304
TRANSMISSION OVERHAUL-46RH

•

SOLENOID

CONNECTOR
3-4

ACCUMULATOR
HOUSING

a-J9321-143

Fig.
99
Solenoid
Connector
Position—46RH
SOLENOID
WIRES
(NOTE
WIRE

ROUTING)

J932M42

Fig.
100
Solenoid
Wire
Routing—46RH
(14) Remove screws attaching solenoid assembly
to

valve body lower housing
and
remove solenoid
and

connector assembly
(Fig. 101).
SOLENOID

ATTACHING
SCREWS
LOWER

HOUSING

SOLENOID
ASSEMBLY
J9321-144

Fig.
101
Solenoid
Assembly
Removal—46RH (15) Remove
3-4
accumulator housing attaching
screws
and
remove housing from valve body
(Fig.
102).

3-4

ACCUMULATOR
HOUSING HOUSING

ATTACHING
SCREWS
Fig.
102
Removing
3-4
Accumulator
Housing

(16) Remove following parts from valve body lower
housing:
3-4
shift valve
and
spring; pressure regula­
tor valve spring; clutch valve; clutch valve spring; and clutch valve plug
(Fig. 103).

LOWER

HOUSING
CLUTCH

VALVE
AND
SPRING
3-4

SHIFT

VALVE
AND

SPRING
CLUTCH

VALVE
PLUG
PRESSURE

REGULATOR
VALVE

SPRING
J9321-146

Fig.
103
Clutch
Valve
And 3-4
Shift
Valve
Locations—46RH

(17) Remove boost valve connecting tube
(Fig.

104).
Disengage tube from upper housing port first.
Then rock opposite
end of
tube back
and
forth
to

work
it out of
lower housing.

CAUTION:
Do not use
tools
to
loosen
or pry the

connecting
tube
out of the
valve
body
housings.
Loosen
and
remove
the
tube
by
hand only.

TRANSMISSION
OVERHAUL-46RH
21 - 305
BOOST
.VALVE TUBE LOWER
HOUSING
UPPER
HOUSING DISENGAGE
THIS END OF TUBE FIRST J9321-147

Fig.
104
Boost
Valve
Tube Removal—46RH (18) Turn valve body over so valve lower housing
is facing upward (Fig. 105). In this position, check
balls in upper housing will remain in place and not fall out when lower housing and transfer plate are
removed.
(19) Remove screws attaching valve body lower
housing to upper housing and transfer plate (Fig.
105).
Note position of boost valve tube brace for
assembly reference.
LOWER
HOUSING VALVE
BODY
SCREWS (13)
~\L^ VALVE TUBE
BRACE J932M48

Fig.
105
Valve
Body
Screw
And Tube
Brace
Location—46RH

(20) Remove lower housing and overdrive separa­
tor plate from transfer plate (Fig. 106). (21) Remove transfer plate from upper housing
(Fig. 107). (22) Turn transfer plate over so upper housing sep­
arator plate is facing upward (Fig. 108). (23) Remove brace plate from lower housing sepa­
rator plate and transfer plate (Fig. 108).
(24) Remove upper housing separator plate from
transfer plate (Fig. 109). Note position of filter in separator plate for assembly reference.
(25) Remove rear clutch check ball from transfer
plate. Note check ball location for assembly ref- OVERDRIVE
SEPARATOR
PLATE TRANSFER
PLATE AND UPPER
HOUSING
LOWER
HOUSING J932M49

Fig.
106
Lower
Housing
Removal—46RH UPPER
HOUSING
TRANSFER PLATE

J932M52

Fig.
107
Removing
Transfer
Plate
From Upper
Housing—46RH

BRACE
J932M50 SEPARATOR TRANSFER
PLATE PLATE

Fig.
108
Brace
Plate
Removal—46RH
erence before removing it (Fig. 110).

21
- 306
TRANSMISSION
OVERHAUL-46RH

•

TRANSFER
UPPER

J9321-151

Fig.
109 Upper
Housing
Separator
Plate
Removal—RH

Fig.
110 Rear
Clutch
Check
Ball
Location—46RH
VALWE
BODY
UPPER
HOUSING

DISASSEMBLY

(1) Note location of check balls in valve body upper
housing (Fig. 111). Then remove one large and six smaller diameter check balls with magnet (total of 7
check balls are used).
(2) Remove E-clip that secure shuttle valve second­
ary spring on valve stem (Fig. 112).
(3) Remove governor plug and shuttle valve covers
(Fig. 113).
(4) Remove throttle plug, primary spring, shuttle
valve, secondary spring, and spring guides (Fig. 113). (5) Remove boost valve retainer, spring and valve
if not previously removed. (6) Turn upper housing over and remove switch
valve, regulator valve and spring, and manual valve (Fig. 114). (7) Remove kickdown detent, kickdown valve, and
throttle valve and spring (Fig. 114). (8) Remove throttle plug and 1-2 and 2-3 governor
plugs (Fig. 114). Also remove shuttle valve primary spring if not removed in prior step.
SMALL

DIAMETER
CHECK

BALLS
(6)

LARGE
DIAMETER
CHECK

BALL
(1)
J932M54

Fig.
112 Shuttle
Valve
E-Clip
And
Secondary
Spring
Location
(9) Turn upper housing around and remove limit
valve and shift valve covers (Fig. 115). (10) Remove limit valve housing. Then remove re­
tainer, spring, limit valve, and 2-3 throttle plug from limit valve housing (Fig. 115).
(11) Remove 1-2 shift control valve and spring
(Fig. 115). (12) Remove 1-2 shift valve and spring (Fig. 115).
(13) Remove 2-3 shift valve and spring from valve
body (Fig. 115). (14) Remove pressure plug cover (Fig. 115).
(15) Remove line pressure plug, sleeve, throttle
pressure plug and spring (Fig. 115).

TRANSMISSION
OVERHAUL-46RH 21 - 307
-156
Fig. 113 Shuttle And Boost Valve Components—46RH
Fig. 114 Control Valve Locations—46RH Upper Housing

21 - 308
TRANSMISSION OVERHAUL-46RH
•

UPPER
HOUSING
PLUG RETAINER
AND
VALVE
COVER SPRING COVER
J9321-157

Fig.
115 Shift Valves And
Pres
VALVE
BODY
LOWER
HOUSING

DISASSEMBLY
(FIG. 116)
(1) Remove timing valve cover.
(2) Remove 3-4 timing valve and spring.
(3) Remove 3-4 shuttle valve E-clip and remove
shuttle valve spring and plug.
(4) Remove 3-4 shift valve and spring. (5) Remove
converter clutch valve, spring and plug. (6) Remove converter clutch timing valve, retainer
and valve spring.
3-4
ACCUMULATOR HOUSING DISASSEMBLY
(FIG.
117)
(1) Remove end plate from housing.
(2) Remove piston spring. (3) Remove piston. Remove and discard piston

seals.

VALVE BODY CLEANING
AND
INSPECTION
The only serviceable valve body components are:
• solenoid and connector assembly
• solenoid gasket
• park rod and E-clip
• switch valve and spring
• pressure adjusting screw bracket
• throttle valve lever • manual lever
• manual shaft seal, washer, and E-clip e
Plugs—46RH
Upper
Housing

• fluid filter
• detent ball and spring The remaining valve body components are serviced
only as part of a complete valve body assembly. Clean the valve body components with a standard
parts cleaning solution only. Do not use gasoline,
kerosene, or any type of caustic solution.
Dry the parts with compressed air. Make sure all
passages are clean and free from obstructions. Do
not use rags or shop towels to dry or wipe off
valve body components. Lint from these materi­ als will stick to the valve body components. Lint
will interfere with valve operation and may clog
filters and fluid passages.
Inspect the throttle and manual valve levers and

shafts.
Do not attempt to straighten a bent shaft or
correct a loose lever. Replace these components if
worn, bent, loose or damaged in any way.
Inspect all of the valve body mating surfaces for
scratches, nicks, burrs, or distortion. Use a straight­
edge to check surface flatness. Minor scratches may
be removed with crocus cloth using only very light pressure.
Minor distortion of a valve body mating surface
may be corrected by smoothing the surface with a sheet of crocus cloth. Position the crocus cloth on a
surface plate, sheet of plate glass or equally flat sur-

TRANSMISSION
0VERHAUL-4IRH
21 - 309

LOWER HOUSING
3-4
SHUTTLE
3-4
ACCUMULATOR PISTON
3-4
ACCUMULATOR HOUSING
3-4
SHUTTLE VALVE
THROTTLE PLUG
TIMING VALVE

COVER
3-4 SHIFT
VALVE AND
SPRING
SPRING

RETAINER
CONVERTER CLUTCH TIMING VALVE AND SPRING
CONVERTER CLUTCH
SOLENOID SOLENOID
GASKET

OVERDRIVE

SEPARATOR
PLATE
J932M58

3^4 ACCUMULATOR
HOUSING
ACCUMULATOR PISTON
Fig.
116 Shift Valves
And
Springs—46RH
Lower
Housing
CAUTION: Many
of the
valves
and
plugs, such
as

the
throttle
valve,
shuttle
valve
plug,
1-2
shift
valve
and
1-2
governor
plug,
are
made
of
coated
alumi­
num
(Fig.
118).
Aluminum
components
are
identi­

fied
by the
dark
color
of the
special
coating
applied

to
the
surface
(or by
testing
with
a
magnet).
Do not
polish
or
sand
aluminum
valves
or
plugs
with
any

type
of
material.
This
practice
could
damage
the
special
coating
and
cause
the
valves
and
plugs
to

stick
and
bind. PISTON

SEAL

RING
PISTON

SPRING

END
PLATE
J9121-277

Fig.
117 3-4
Accumulator
Housing

Components—46RH
Inspect
the
valves
and
plugs
for
scratches, burrs,

nicks,
or
scores. Minor surface scratches
on
steel
valves
or
plugs
can be
removed with crocus cloth
but
do
not
round
off the
edges
of the
valve
or
plug

lands.
Maintaining sharpness
of
these edges
is vi­

tally important.
The
edges prevent foreign matter from lodging between
the
valves
and
plugs
and the

bore.

Inspect
all the
valve
and
plug bores
in the
valve
body.
Use a
penlight
to
view
the
bore interiors.
Re­

place
the
valve body
if any
bores
are
distorted
or
scored. Inspect
all of the
valve body springs.
The

springs must
be
free
of
distortion, warpage
or
broken
coils.

Check
the two
separator plates
for
distortion
or

damage
of any
kind. Inspect
the
upper housing,
lower housing,
3-4
accumulator housing,
and
transfer
face.
If
distortion
is
severe
or any
surfaces
are

heavily scored,
the
valve body will have
to be re­
placed.

21
- 310
TRANSMISSION 0VERHAUL-46RH

• plate carefully. Be sure all fluid passages are clean
and clear. Check condition of the upper housing and
transfer plate check balls as well. The check balls and ball seats must not be worn or damaged.
Trial fit each valve and plug in its bore to check
freedom of operation. When clean and dry, the valves and plugs should drop freely into the bores.
Valve body bores do not change dimensionally with

use.
If the valve body functioned correctly when new,
it will continue to operate properly after cleaning
and inspection. It should not be necessary to replace
a valve body assembly unless it is damaged in han­
dling.

VALWE
BODY BEASSEMBLY

CAUTION; Do not
force valves
or
plugs
into place
during reassembly.
If the
valve body bores, valves

and
plugs
are
free
of
distortion
or
burrs,
the
valve
body
components should
all
slide into place easily.
In addition,
do not
overtighten
the
transfer
plate

and
valve body screws during reassembly. Over­
tightening
can
distort
the
housings
resulting
in
valve sticking,
cross
leakage
and
unsatisfactory
op­

eration. Tighten valve body screws
to
recom­ mended torque only.
Lower Housing Assembly (Fig.
116)
(1) Lubricate valves, springs, and the housing
valve and plug bores with Mopar ATF Plus, or
Dexron II® transmission fluid. (2) Install 3-4 timing valve spring and valve in
lower housing. (3) Install 3-4 shuttle valve in lower housing.
Press valve inward and install E-clip on end of valve
to secure it in housing.
(4) Install 3-4 shuttle valve spring and throttle
plug in housing. (5) Install timing valve end plate. Tighten end
plate screws to 4 N»m (35 in. lbs.) torque.
(6) Install 3-4 shift valve and spring.
(7) Install converter clutch valve, spring and plug.
(8) Install converter clutch timing valve and
spring.

3-4 Accumulator
Assembly
(Fig.
117) (1) Lubricate accumulator piston, seals and hous­
ing piston bore with ATF Plus, or Dexron II®. (2) Install new seal rings on accumulator piston.
(3) Install piston and spring in housing.
(4) Install end plate on housing.

Transfer Plate Assembly
(1) Install rear clutch check ball in transfer plate
(Fig. 110). (2) Install filter screen in upper housing separator
plate (Fig. 109). (3) Align and position upper housing separator
plate on transfer plate (Fig. 109).
(4) Install brace plate (Fig. 108). Tighten brace at­
taching screws to 4 Nnn (35 in. lbs.) torque. (5) Install remaining separator plate attaching
screws. Tighten screws to 4 N*m (35 in. lbs.) torque.

SHIFT
VALVE
END PLATE
2-3
SHIFT

VALVE AND
SPRING
SHUTTLE VALVE

SECONDARY
SPRING,
GUIDES,
E-CLIP

1-2
SHIFT

CONTROL VALVE AND SPRING
REGULATOR VALVE
END PLATE SHUTTLE VALVE

COVER

SLEEVE

REGULATOR
VALVE
THROTTLE

PRESSURE
PLUG
RETAINER VALVE

SPRING
2-3
SHIFT

VALVE GOVERNOR PLUG
LINE

PRESSURE

ADJUSTING*
SCREW
ADJUSTING

SCREW

BRACKET
SHUTTLE VALVE
PLUG
(ALUM.)

GOVERNOR VALVE END PLATE
AAANUAL LEVER DETENT BALL
AND SPRING

J9221-21 E
w

00

o
z
m
30
Fig. 118 Upper Housing Components—46RH
Valve
Body (Alum.
Indicates
Aluminum
Part)