Page 1826 of 2585
(39) Install the #3 thrust washer to the underdrive
shaft assembly. Be sure five tabs are seated properly
(Fig. 279).
(40) Install the #3 thrust plate to the bottom of the
overdrive shaft assembly. Retain with petrolatum or
transmission assembly gel (Fig. 280).(41) Install the overdrive shaft assembly (Fig. 281)
(Fig. 282).
(42) Reinstall overdrive and reverse clutch as
shown.Rechecking these clutch clearances is
not necessary.
Fig. 279 Install No. 3 Thrust Washer
1 - #3 THRUST WASHER (NOTE 5 TABS)
2 - UNDERDRIVE SHAFT ASSEMBLY
Fig. 280 Install No. 3 Thrust Plate
1 - OVERDRIVE SHAFT ASSEMBLY
2 - DABS OF PETROLATUM (FOR RETENTION)
3 - #3 THRUST PLATE (NOTE 3 TABS)
Fig. 281 Install Overdrive Shaft Assembly
1 - OVERDRIVE SHAFT ASSEMBLY
2 - #3 THRUST PLATE
3 - #3 THRUST WASHER
RS41TE AUTOMATIC TRANSAXLE21 - 229
INPUT CLUTCH ASSEMBLY (Continued)
Page 1827 of 2585

OIL PUMP
DESCRIPTION
The oil pump is located in the pump housing inside
the bell housing of the transaxle case (Fig. 283). The
oil pump consists of an inner and outer gear, a hous-
ing, and a cover that also serves as the reaction shaft
support.
OPERATION
As the torque converter rotates, the converter hub
rotates the inner and outer gears. As the gears
rotate, the clearance between the gear teeth
increases in the crescent area, and creates a suction
at the inlet side of the pump. This suction draws
fluid through the pump inlet from the oil pan. As the
clearance between the gear teeth in the crescent area
decreases, it forces pressurized fluid into the pump
outlet and to the valve body.
DISASSEMBLY
When disassembling the transaxle it is necessary
to inspect the oil pump for wear and damage.
(1) Remove the reaction shaft support bolts.
(2) Remove reaction shaft support from pump
housing (Fig. 284).
(3) Remove the pump gears (Fig. 285) and check
for wear and damage on pump housing and gears.
(4) Re-install the gears and check clearances.
(5) Measure the clearance between the outer gear
and the pump pocket (Fig. 286). Clearance should be
0.089±0.202 mm (0.0035-0.0079 in.).
(6) Measure clearance between outer gear and
crescent. Clearance should be 0.060-0.298 mm
(0.0023-0.0117 in.).
(7) Measure clearance between inner gear and
crescent. Clearance should be 0.093-0.385 mm
(0.0036-0.0151 in.).
(8) Position an appropriate piece of Plastigage
across both pump gears.
Fig. 282 Overdrive/Underdrive Shafts
1 - OVERDRIVE SHAFT
2 - #3 THRUST PLATE (3 TABS)
3 - #3 THRUST WASHER (5 TABS)4 - UNDERDRIVE SHAFT
5 - #2 NEEDLE BEARING (3 TABS)
6 - INPUT CLUTCH ASSEMBLY
21 - 230 41TE AUTOMATIC TRANSAXLERS
INPUT CLUTCH ASSEMBLY (Continued)
Page 1880 of 2585
(6) Install 1/2 synchro to fixture 8483. Insert 1st
gear blocker ring, friction cone, and reactor ring as
shown in (Fig. 61).
(7) Install intermediate shaft to synchro assembly
on fixture (Fig. 62). When installing 1/2 synchro-
nizer, make sure to align oil slots on synchro-
nizer hub face with oil hole in the shaft splined
hub journal. Line up friction cone and reactor ring
tabs to gear slots. Remove shaft assembly from fix-
ture. (8) Install NEW1/2 synchro snap ring (Fig. 63).
Fig. 61 1/2 Synchro on Fixture 8483
1 - FIXTURE 8483
2 - 1ST GEAR BLOCKER RING
3 - 1ST GEAR FRICTION CONE
4 - 1ST GEAR REACTOR RING
5 - 1/2 SYNCHRONIZER
Fig. 62 Install 1/2 Synchro to Intermediate Shaft
1 - INTERMEDIATE SHAFT
2 - 1ST GEAR
3 - 1/2 SYNCHRO ASSEMBLY
4 - FIXTURE 8483
Fig. 63 1/2 Synchro Snap Ring
1 - SNAP RING
2 - 1/2 SYNCHRO HUB
RS T850 MANUAL TRANSAXLE21s-19
INTERMEDIATE SHAFT (Continued)
Page 1900 of 2585
(20) Remove #1 needle bearing (Fig. 34).
(21) Remove input clutch assembly (Fig. 35).(22) Remove #4 thrust plate (Fig. 36).
(23) Remove front sun gear assembly and #4
thrust washer (Fig. 37).
Fig. 34 Remove No. 1 Caged Needle Bearing
1 - #1 CAGED NEEDLE BEARING
2 - NOTE: TANGED SIDE OUT
Fig. 35 Remove Input Clutch Assembly
1 - INPUT CLUTCH ASSEMBLY
2 - #4 THRUST WASHER
Fig. 36 No. 4 Thrust Plate
1 - OVERDRIVE SHAFT ASSEMBLY
2 - #4 THRUST PLATE (SELECT)
3 - 3 DABS OF PETROLATUM FOR RETENTION
Fig. 37 Remove Front Sun Gear Assembly
1 - FRONT SUN GEAR ASSEMBLY
2 - #4 THRUST WASHER (FOUR TABS)
RS 40TE AUTOMATIC TRANSAXLE21s-39
40TE AUTOMATIC TRANSAXLE (Continued)
Page 1901 of 2585

(24) Remove front carrier/rear annulus assembly
and #6 needle bearing (Fig. 38).
(25) Remove rear sun gear and #7 needle bearing
(Fig. 39).
NOTE: The number 7 needle bearing has three anti-
reversal tabs and is common with the number five
and number two position. The orientation should
allow the bearing to seat flat against the rear sun
gear (Fig. 40). A small amount of petrolatum can be
used to hold the bearing to the rear sun gear. (26) Setup tool 5058 as shown in (Fig. 41). Com-
press 2/4 clutch return spring (just enough to remove
snap ring) and remove snap ring.
NOTE: Verify that Tool 5058 is centered properly
over the 2/4 clutch retainer before compressing. If
necessary, fasten the 5058 bar to the bellhousing
flange with any combination of locking pliers and
bolts to center the tool properly.
NOTE: The 2/4 Clutch Piston has bonded seals
which are not individually serviceable. Seal replace-
ment requires replacement of the piston assembly.
Fig. 38 Remove Front Carrier/Rear Annulus Assembly
1 - #6 NEEDLE BEARING
2 - FRONT CARRIER AND REAR ANNULUS ASSEMBLY (TWIST
AND PULL OR PUSH TO REMOVE OR INSTALL).
Fig. 39 Remove Rear Sun Gear
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 40 Number 7 Bearing
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 41 Remove 2/4 Clutch Retainer Snap Ring
1 - TOOL 5058
2 - SCREWDRIVER
3 - SNAP RING
4 - 2/4 CLUTCH RETAINER
21s - 40 40TE AUTOMATIC TRANSAXLERS
40TE AUTOMATIC TRANSAXLE (Continued)
Page 1920 of 2585
(23) Bend tabs on strap up against flats of bolts
(Fig. 110).
(24) Install transfer shaft bearing cone using Tool
6052 (Fig. 111). (25) Install bearing cup and oil baffle to transfer
shaft (Fig. 112).
(26) Using Tool 5049A, install transfer shaft (Fig.
113).
Fig. 110 Bend Tabs On Strap Up Against Flats Of Bolts
1 - RETAINING STRAP TABS
2 - RETAINING STRAP
3 - STIRRUP
Fig. 111 Install Transfer Shaft Bearing Cone
1 - TOOL 6052
2 - NEW BEARING CONE
3 - TRANSFER SHAFT
4 - ARBOR PRESS RAM
Fig. 112 Install Bearing Cup to Shaft
1 - BEARING CUP
2 - BEARING CONE
3 - TRANSFER SHAFT
4 - OIL BAFFLE
5 - O-RING
Fig. 113 Install Transfer Shaft
1 - SPECIAL TOOL 5049±A
2 - TRANSFER SHAFT
3 - OUTPUT GEAR
RS 40TE AUTOMATIC TRANSAXLE21s-59
40TE AUTOMATIC TRANSAXLE (Continued)
Page 1928 of 2585

(49) Install rear sun gear and #7 needle bearing
(Fig. 136).
NOTE: The number seven needle bearing has three
anti-reversal tabs and is common with the number
five and number two position. The orientation
should allow the bearing to seat flat against the
rear sun gear (Fig. 135). A small amount of petrola-
tum can be used to hold the bearing to the rear sun
gear. (50) Install front carrier/rear annulus assembly
and #6 needle bearing (Fig. 137).
(51) Install front sun gear assembly and #4 thrust
washer (Fig. 138).
Fig. 135 Number 7 Bearing
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 136 Install Rear Sun Gear and #7 Needle Bearing
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 137 Install Front Carrier/Rear AnnulusAssembly
1 - #6 NEEDLE BEARING
2 - FRONT CARRIER AND REAR ANNULUS ASSEMBLY (TWIST
AND PULL OR PUSH TO REMOVE OR INSTALL).
Fig. 138 Install Front Sun Gear Assembly
1 - FRONT SUN GEAR ASSEMBLY
2 - #4 THRUST WASHER (FOUR TABS)
RS 40TE AUTOMATIC TRANSAXLE21s-67
40TE AUTOMATIC TRANSAXLE (Continued)
Page 1929 of 2585

(52)DETERMINING #4 THRUST PLATE
THICKNESS / INPUT SHAFT END PLAY: (a) Select the thinnest #4 thrust plate thickness
and install to input clutch assembly (Fig. 139). Use
petrolatum to retain. (b)
Install input clutch assembly into position and
verify that it is completely seated by viewing through
input speed sensor hole. If view through input speed
sensor hole is not as shown in (Fig. 140), the input
clutch assembly is not seated properly.
(c) Remove oil pump o-ring (Fig. 141). Be sure
to reinstall oil pump o-ring after selecting the
proper #4 thrust plate. (d) Install pump and gasket to transmission.
Install and torque bolts. (e) Set up input shaft for measurement with
Indicator Set C3339 and End Play Set 8266 as
shown in (Fig. 142). (f) Measure the input shaft end play with the
transaxle in the vertical position. Input shaft end
play must be within 0.005 to 0.025 inch. For
example, if end play reading is 0.055 inch, select
No. 4 Thrust Plate which is 0.071 to 0.074 thick.
This should provide an input shaft end play read-
ing of 0.020 inch which is within specifications. (g) Refer to the No. 4 thrust plate chart to select
the proper No. 4 thrust plate:
Fig. 139 Select Thinnest No. 4 Thrust Plate
1 - OVERDRIVE SHAFT ASSEMBLY
2 - #4 THRUST PLATE (SELECT)
3 - 3 DABS OF PETROLATUM FOR RETENTION
Fig. 140 View Through Input Speed Sensor Hole
1 - INPUT CLUTCH RETAINER
2 - INPUT SPEED SENSOR HOLE
3 - OIL COOLER FITTINGS
Fig. 141 Remove Oil Pump O-Ring
1 - OIL PUMP ASSEMBLY
2 - O-RING
Fig. 142 Measure Input Shaft End Play Using Tool 8266ÐTypical
1 - TOOL 8266±8
2 - TOOL 8266±2
3 - TOOL C-3339
21s - 68 40TE AUTOMATIC TRANSAXLERS
40TE AUTOMATIC TRANSAXLE (Continued)