Section 433 (Automatic Transaxle/Transmission): Assembly: Transaxle: Assembly
WARNING: This page is about a different car, the 2002 Mercury Cougar. However, it is still accessible from the selected car via links, so may be relevant.
- Prepare the transaxle for assembly by proceeding with the following steps:
- Clean all parts (except the friction plates, seals, and intermediate/overdrive band) in solvent.
- Dry all parts with moisture-free regulated compressed air (do not use shop towels).
- Lubricate all internal parts (including friction plates) with clean automatic transmission fluid.
- Order the required repair parts.
- Make sure the complete assortment of selective thickness parts are on hand for adjustments during assembly:
- Drive sprocket thrust washers
- Driven sprocket thrust bearing shims
- Differential case thrust bearing shims
- Low/reverse clutch pressure plates
- During assembly, use petroleum jelly to hold the parts in place (do not use grease).
- When tightening fasteners, use an accurate torque wrench.
- Lightly coat bolt and nut threads with automatic transmission fluid for correct installation torque specifications.
- Install the intermediate and overdrive band assembly into the transaxle case.
- Install the No. 1 pump support thrust bearing.
- Lubricate the seal rings with automatic transmission fluid.
- Install pump assembly into the case.
- Install the pump assembly bolts.
- Using the special tools, install the low/reverse clutch piston.
- Lubricate seals and piston bore with clean automatic transmission fluid.
- Install the low/reverse clutch return spring assembly.
- Install the low/reverse clutch return spring retaining ring.
- Install the thick, (ten-wave) low/reverse clutch wave spring.
- Install the low/reverse clutch plates.
- Install the low/reverse clutch external spline (steel) clutch plates.
- Install the low/reverse clutch internal spline (friction) clutch plates.
- Install the thinner, eight-wave low, reverse clutch cushion spring.
- Install the low/reverse clutch pressure plate.
- Install the low one-way clutch thrust plate.
- Measure the clearance between the low/reverse clutch pressure plate and the low one-way clutch thrust plate (three plate clutch).
- Take a second measurement on the opposite side.
- Average the two measurements to obtain the clearance.
- If the clearance is not within specification, select and fit the correct thickness pressure plate to obtain the specified clearance.
- Pressure plate sizes:
- 2.57-2.46 mm (0.101-0.097 in)
- 2.36-2.26 mm (0.092-0.089 in)
- 2.16-2.06 mm (0.085-0.081 in)
- Measure the clearance between the low/reverse clutch pressure plate and the low one-way clutch thrust plate (two plate clutch).
- Take a second measurement on the opposite side.
- Average the two measurements to obtain the clearance.
- If the clearance is not within specification, select and fit the correct thickness pressure plate to obtain the specified clearance.
- Pressure plate sizes:
- 2.57-2.46 mm (0.101-0.097 in)
- 2.36-2.26 mm (0.092-0.089 in)
- 2.16-2.06 mm (0.085-0.081 in)
- Remove the low one-way clutch thrust plate, the low/reverse clutch pressure plate, the low/reverse clutch external spline clutch plates (steel), the low/reverse clutch wave spring and the low/reverse clutch internal spline clutch plates (friction).
- Low one-way clutch thrust plate.
- Low/reverse clutch pressure plate.
- Low/reverse clutch cushion spring (eight-wave).
- Low/reverse clutch external spline clutch plates (steel).
- Low/reverse clutch wave spring (ten-wave).
- Low/reverse clutch internal spline clutch plates (friction).
- Install the No. 1 pump support thrust bearing assembly.
- Install the forward/coast/direct clutch cylinder assembly and reverse clutch drum assembly.
- Install the turbine shaft.
- Install the No. 4 turbine shaft thrust bearing.
- Install the forward one-way clutch and low-intermediate sun gear assembly.
- Install the No. 5 low-intermediate sun gear thrust bearing.
- Install the low-intermediate carrier assembly.
- Install the No. 6 low-intermediate carrier thrust bearing.
- Install the low-intermediate ring gear assembly.
- Install the No. 7 reverse/overdrive sun gear thrust bearing.
- Install the reverse/overdrive sun gear and shell assembly.
- Install the reverse/overdrive carrier assembly with the captured No. 8 thrust bearing.
- Install the thick, ten-wave low/reverse clutch wave spring.
- Install the low/reverse clutch plate (model dependent).
- Install the low/reverse clutch external spline (steel) clutch plates.
- Install the low/reverse clutch internal spline (friction) clutch plates.
- Install the low/reverse clutch pressure plate previously selected.
- Install the thin, eight-wave low/reverse clutch wave spring.
- Install the low one-way clutch assembly with the identification ring on the inner ring facing upward.
- Install the low one-way clutch thrust plate.
- Install the low one-way clutch retaining ring.
- Install the manual valve detent lever actuating rod assembly.
- Install the parking cam actuator lever.
- Install the manual valve detent lever.
- Install the special tools.
- Install the special tool with short spacers.
- Using the special tools, measure the distance from the top of special tool to the No. 12 driven sprocket bearing surface area.
- Record this dimension.
- This dimension is designated with A.
- Using the special tools, measure the distance from the top of special tool to the bearing surface on the reverse/overdrive carrier assembly on one side of the turbine shaft.
- Repeat this measurement on the other side of the turbine shaft 180 degrees from the first measurement.
- The average of these two dimensions is dimension B.
- Remove the special tools.
- Subtract dimension B from dimension A to obtain dimension C.
- A-B = C
- Use the third dimension to select the correct No. 11 driven sprocket shim.
- Select a shim from the driven sprocket shim chart.
- Install and lubricate the following:
- Lubricate the needles and seals in the No. 18 driven sprocket bearing.
- Install the selected No. 11 driven sprocket shim.
- Install the No. 12 driven sprocket bearing.
- Install the No. 9 reverse/overdrive ring gear thrust bearing.
- Install the reverse/overdrive ring gear assembly.
- Install the special tools.
- Install the special tool with short spacers.
- Using the special tools, measure the distance from the top of special tool to the face of the reverse/overdrive ring gear assembly surface area.
- Repeat this measurement on the other side of the face of the reverse/overdrive ring gear assembly area 180 degrees from the first measurement.
- The average of these two dimensions is the first dimension.
- Remove the special tools.
- Add 25.4 mm (thickness of special tool 307-300) and short spacers' thickness.
- This is the second dimension.
- Subtract the first dimension from the second dimension.
- This is the third dimension.
- Select No. 10 thrust washer from the drive sprocket thrust washer chart in specifications. Refer to SPECIFICATIONS .
- Use the third dimension to select the No. 10 drive sprocket thrust washer.
- Use petroleum jelly and install the selected No. 10 drive sprocket thrust washer on the torque converter housing.
- Remove the reverse/overdrive ring gear assembly.
- Install the filter and seal assembly.
- Install the special tool in the filter eyelet and transaxle hole.
- Using the special tool, install the filter recirculating regulator exhaust seal.
- Install the chain pan in the transaxle case.
- Assemble and install the drive chain assembly.
- Drive chain (copper colored link facing upward).
- Driven sprocket assembly.
- Reverse/overdrive ring gear assembly.
- Make sure that the driven sprocket assembly and reverse/overdrive ring gear assembly are seated.
- Install the chain pan cover by snapping it into place.
- Install the No. 13 driven sprocket thrust bearing.
- Install the final drive carrier and differential assembly.
- Install the special tools.
- Install the special tool.
- Install the special tool and bolts.
- Using the special tools, measure the distance from the top of special tool to the shim surface area of the final drive carrier and the differential assembly on one side of the hub.
- Repeat this measurement on the other side of the hub 180 degrees from the first measurement.
- The average of these two dimensions is dimension B.
- Use combined thickness of special tool 307-300 with long spacers 177.8 mm as dimension A.
- Subtract dimension B from dimension A.
- This is dimension C.
- Use dimension C to select the correct No. 14 differential bearing shim from the differential bearing shim chart.
- Install the differential bearing assembly.
- Install the No. 14 differential bearing shim (selective fit).
- Install the No. 15 differential bearing.
- Install the torque converter housing onto the transaxle case.
- Position and install the split flange gasket.
- Install the torque converter housing to transaxle case bolts.
- Lubricate the assembly with clean automatic transmission fluid.
- Assemble the intermediate and overdrive servo return spring assembly onto the servo piston assembly.
- Servo cover with bonded seal.
- Cushion spring.
- Servo apply rod.
- Servo return spring.
- Assemble the intermediate and overdrive servo return spring assembly onto the servo piston assembly.
- Install the special tool.
- Assemble the special tool.
- Install struts.
- Install bar.
- Install bolts.
- Install the center bolt.
- Using the special tool 303-D026 measure the distance to the bar of special tool 307-S296.
- Record the first dimension.
- Back off the center bolt of special tool 307-S296 until the piston movement stops.
- Using the special tool 303-D026, measure the dimension to the bar of special tool 307-S296 (second dimension).
- Subtract the first dimension from the second dimension to find the travel.
- If the travel is not within the specification, select a new intermediate and overdrive servo apply rod assembly from the servo apply rod chart in specifications. Refer to SPECIFICATIONS .
- Using a lint free cloth wipe the servo piston and the servo cover cap.
- Inspect the servo piston for cracks to the pressure and sealing surfaces.
- Check the servo piston lip.
- Inspect the servo retainer spring for cracks, breaks or deformation.
- Assembly the special tool.
- Install the special tool.
- Tighten the special tool bolt.
- Install the servo cover retaining ring.
- Loosen the special tool bolt.
- When spring tension is released remove the special tool.
- Using the special tool, inspect the hydraulic circuits.
- Use a rubber tipped blow gun and 2.76 bar of moisture free regulated compressed air.
- Reverse clutch test port
- Forward clutch test port
- Direct clutch test port
- Low/reverse clutch test port
- Servo release test port
- Servo apply test port
- Air test plate.
- If air leakage is detected, disassemble the transaxle and locate source of leakage.
- Use a rubber tipped blow gun and 2.76 bar of moisture free regulated compressed air.
- Install the thermostatic fluid level control valve.
- Position the thermostatic fluid level control valve.
- Install the bracket.
- Install the thermostatic fluid level control valve bracket bolt.
- Install the solenoid body electrical connector O-ring seal and install the electrical connector into its bore in the transaxle case.
- Connect the manual valve.
- Lift the main control away from the case.
- Connect the Z-link to the manual valve.
- Install the main control valve body mounting bolts.
- Loosen the nut on the ball stud for the manual valve detent lever actuating rod assembly.
- Move the manual control lever shaft to the "D" position.
- Install pin to hold special tool in place.
- Move the manual valve detent lever assembly to the "D" position.
- Tighten the nut on the ball.
- Remove the shifter pin from the special tool.
- Rotate special tool 307-S290 (T94P-77000-H) until socket can be fitted.
- Tighten the detent nut.
- Rotate back to "D" position to recheck the adjustment.
- Using the special tool, recheck the manual control lever assembly setting.
- Install the manual control lever.
- Position the manual control lever.
- Tighten the manual control lever retaining bolt.
- Rotate the manual valve detent lever assembly to the NEUTRAL position.
- Low 1
- Low 2
- Drive
- Neutral
- Reverse
- Park
- Position the transmission range (TR) sensor.
- Align the TR sensor.
- Using the special tool, align the TR sensor.
- Tighten the TR sensor retaining bolts.
- Install the main control cover gasket.
- Install the main control cover.
- Install the vent tube.
- Install the main control cover bolts.
- Install the new transmission filler tube grommet.
- Install the transmission filler tube assembly.
- Install the tube.
- Install the transmission filler tube bolt.
- Install the fluid level indicator.
- Install the turbine shaft speed (TSS) sensor.
- Use petroleum jelly on the O-ring seal and position the TSS sensor.
- Install a new O-ring seal.
- Install the TSS sensor bolt.
- Use petroleum jelly on the O-ring seal and position the TSS sensor.
- Using the special tool install the differential seals.
- Using the special tool, install the torque converter fluid seal.
- Coat the torque converter seal garter spring with petroleum jelly.
- Install the drain plug.
- Install the output shaft speed (OSS) sensor.
- Install the pump drive shaft.
- Using the special tool, install the torque converter.
- Remove the special tools.
NOTE:
Apply a thin coat of petroleum jelly to the pump support seals and to the pump bore in the transaxle.
NOTE:
Tighten the bolts in the indicated sequence.
CAUTION:
Make sure that the special tools are correctly aligned in the piston bore. Failure to follow this instruction may result in damage to the special tools.
CAUTION:
The low/reverse clutch wave spring is fitted in this position for measurement purposes only.
NOTE:
The number of clutch plates will vary per application.
CAUTION:
The low one-way clutch thrust plate is fitted in the position for measurement purposes only.
NOTE:
One tooth of the low/reverse clutch pressure plate is notched for identification.
NOTE:
Remove seal sizer from forward/coast/direct clutch cylinder.
NOTE:
Position the low one-way clutch retaining ring as shown.
NOTE:
Installation of the reverse/overdrive ring gear assembly at this time is for measurement purposes only.
NOTE:
Lubricate the filter recirculating regulator exhaust seal before installation.
WARNING:
wear gloves as protection from sharp chain and sprocket teeth. Failure to follow these instructions may result in personal injury.
NOTE:
Plastic washers should be placed between the bolts heads and the special tool.
NOTE:
Check for correct alignment of the lube tube on the converter housing.
NOTE:
Tighten the bolts in the indicated sequence.
NOTE:
Note the number of grooves on the intermediate and overdrive servo apply rod.
NOTE:
Struts on the special tool fit into the servo cover retaining ring groove.
CAUTION:
Do not use cleaning solvent to clean the rubber sealing surfaces of the servo piston or servo cover cap. Failure to follow this instruction may result in damage to the sealing surfaces.
NOTE:
Check for damage in the area where the servo piston connects to the servo rod.
NOTE:
If the lip of the servo piston is brittle install a new servo piston.
WARNING:
Servo return spring force is very high. Failure to follow these instructions may result in personal injury.
CAUTION:
Use only snap ring pliers to install the retaining ring. Failure to follow this instruction may result in damage to the case.
CAUTION:
If the case is stamped with a WG, install a wide groove snap ring. Failure to follow this instruction may result in damage to the servo.
NOTE:
If the servo cover will not seat deep enough in the bore to install the servo cover retaining ring, use a blunt punch or small hammer and gently tap the cover around the outer edge until the servo cover retaining ring can be installed.
CAUTION:
Do not check the coast clutch since the piston may be forced out of the forward clutch piston.
NOTE:
If any leaks occur make sure that the special tool is correctly seated.
CAUTION:
Do not pull wires or damage the solenoid body electrical connector. Damage to the connector and terminals may result.
CAUTION:
Handle main control valve body with care to prevent manual valve damage.
NOTE:
Tighten the bolts in the sequence shown. Bolts 1, 7 and 9 are longer than the others.
NOTE:
Tighten the bolts in the indicated sequence.
NOTE:
Make sure the torque converter seal garter spring does not become dislodged during fitting. If the garter spring does become dislodged, install a new torque converter seal.
NOTE:
Check for correct rotation of the pump drive shaft.