Mazda 323/626/929/GLC/MX-6/RX-7 1978-1989

Transmission

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REMOVAL & INSTALLATION



GLC and 626
  1. Disconnect the negative battery cable.
  2.  
  3. Drain the transmission.
  4.  
  5. Remove the heat insulator.
  6.  
  7. Disconnect the exhaust pipe.
  8.  
  9. Disconnect the driveshaft at the rear axle flange.
  10.  
  11. Remove the driveshaft.
  12.  
  13. Disconnect the speedometer cable.
  14.  
  15. Disconnect the shift rod.
  16.  
  17. Remove all vacuum hoses.
  18.  
  19. Disconnect all wiring.
  20.  
  21. Disconnect the oil cooler lines.
  22.  
  23. Remove the access cover from the lower end of the converter housing.
  24.  
  25. Matchmark the drive plate and torque converter for realignment, then remove the converter bolts.
  26.  
  27. Support the transmission with a jack and remove the crossmember.
  28.  
  29. Remove the converter housing-to-engine bolts.
  30.  
  31. Remove the filler tube.
  32.  
  33. Separate the flexplate and the converter.
  34.  
  35. Remove the transmission and converter as an assembly.
  36.  

To install:
  1. Raise the transmission into the vehicle, then align the matchmarks on the torque converter and the drive plate. Install the drive plate bolts and tighten them evenly.
  2.  
  3. Install the filler tube.
  4.  
  5. Install the converter-to-housing bolts and tighten them evenly.
  6.  
  7. Install the crossmember and remove the transmission jack.
  8.  
  9. Attach the access cover to the lower end of the converter housing.
  10.  
  11. Connect the oil cooler lines, vacuum hoses, shift rod and speedometer cable.
  12.  
  13. Install the driveshaft and connect the exhaust pipe.
  14.  
  15. Install the heat insulator and fill the transmission to the proper level with Type F fluid. Adjust the shift control linkage and the neutral safety switch as required.
  16.  

929

To remove and install the drive plate bolts, a special angle wrench/adapter (No. 49-0877-45) is required. This wrench has a cutout in the center to accept the drive of a torque wrench.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the transmission oil level gauge.
  4.  
  5. Raise and support the vehicle safely. Disconnect the shift rod from the selector lever. Remove the front exhaust pipe. Remove the heat insulator.
  6.  
  7. Matchmark the driveshaft companion and yoke flanges, then remove the driveshaft.
  8.  
  9. Unbolt and remove the starter. Disconnect the speedometer cable.
  10.  
  11. Label and disconnect the inhibitor switch connector, the turbine sensor connector, the lock-up solenoid connector and the solenoid valve connector from the wiring harness.
  12.  
  13. Remove the oil vacuum pipes, then plug the ends. Remove the undercover.
  14.  
  15. Support the transmission with a suitable jack and unbolt the crossmember.
  16.  
  17. Matchmark the drive plate and torque converter for realignment, then remove the converter bolts.
  18.  
  19. Using the special tool, remove the torque converter housing-to-engine bolts and separate the transmission from the drive plate. Push the wiring harness bracket off to the side. Remove the transmission from the vehicle.
  20.  

To install:
  1. Raise the transmission into the vehicle, then align the matchmarks on the torque converter and the drive plate. Install the torque converter housing-to-engine bolts and torque them down in an alternate pattern to 27-38 ft. lbs. (37-51 Nm). Attach the wiring harness to the transmission and torque the bracket bolt to 23-34 ft. lbs. (31-46 Nm). Install the drive plate bolts and snug them first. Using the special tool, finally tighten them evenly to 25-36 ft. lbs. (34-49 Nm).
  2.  
  3. Attach the crossmember to the frame and torque the bolts to 29-42 ft. lbs. (39-60 Nm). Remove the transmission jack and install the under cover.
  4.  
  5. Install the vacuum and oil pipes.
  6.  
  7. Engage all the wiring multi-connectors to the wiring harness.
  8.  
  9. Connect the speedometer cable and install the starter.
  10.  
  11. Align the driveshaft yoke and companion flanges, then connect the driveshaft. Torque the driveshaft bolts to 27-38 ft. lbs. (37-51 Nm).
  12.  
  13. Connect the exhaust pipe using a new gasket. Torque the through-bolt to 12-17 ft. lbs. (16-23 Nm) and the nuts to 23-34 ft. lbs. (31-46 Nm). Install the heat insulator.
  14.  
  15. Connect the shift rod to the selector lever using a new spring clip.
  16.  
  17. Fill the transmission to the proper level and replace the oil level gauge. Connect the negative battery cable.
  18.  

1979-85 RX-7

To remove and install the drive plate bolts, a special angle wrench/adapter (No. 49-0877-45) is required. This wrench has a cutout in the center to accept the drive of a torque wrench.

  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the inhibitor switch connector.
  4.  
  5. Apply the parking brake and block the wheels.
  6.  
  7. Remove the converter housing upper cover.
  8.  
  9. Disconnect the vacuum sensing tube from the vacuum diaphragm.
  10.  
  11. Remove the air cleaner assembly and the converter housing side cover.
  12.  
  13. Remove the bolts attaching the transmission to the rear end of the engine. Raise and support the vehicle safely.
  14.  
  15. Remove the front, the rear and the converter under covers.
  16.  
  17. Remove the air pipe and the converter brackets.
  18.  
  19. Remove the rear of the exhaust pipe and the pellet converter assembly.
  20.  
  21. Remove the front exhaust pipe and the monolith converter assembly.
  22.  
  23. Remove the floor under covers.
  24.  
  25. Remove the driveshaft, then install the turning holder tool 49-0259-440 into the rear of the extension housing, to prevent the fluid from leaking from the housing.
  26.  
  27. Disconnect the starter wiring connectors.
  28.  
  29. Remove the starter and the lower converter housing cover.
  30.  
  31. For reinstallation purposes, place an alignment mark on the drive plate and the torque converter.
  32.  
  33. Remove the bolts securing the torque converter to the drive plate.
  34.  
  35. Remove the bolts that attach the transmission to the rear of the engine.
  36.  
  37. Properly support both the engine and the transmission assemblies.
  38.  
  39. Disconnect the speedometer cable and the selector rod at the selector lever.
  40.  
  41. Remove the nuts that attach the transmission support to the body.
  42.  
  43. Using a transmission removal jack, lower the transmission slightly and remove the fluid coolant tubes.
  44.  
  45. Slide the transmission rearward, until the input shaft clears the eccentric shaft, then remove the transmission/torque converter assembly from under the vehicle.
  46.  

To install:
  1. Position the transmission under the vehicle and slide the unit forward until the input shaft engages the eccentric shaft. Make sure that the matchmarks on the torque converter and drive plate are aligned. Connect the fluid tubes to the transmission.
  2.  
  3. Install the transmission support-to-body nuts and tighten them evenly.
  4.  
  5. Connect the shift rod to the selector lever and connect the speedometer cable to the transmission.
  6.  
  7. Remove the transmission jack and install the converter-to-drive plate bolts. Torque the bolts to 25-36 ft. lbs. (34-49 Nm) using the special tool.
  8.  
  9. Install the lower converter housing cover and the starter.
  10.  
  11. Connect the driveshaft and install the floor under covers.
  12.  
  13. Connect the monolith converter and exhaust pipe assemblies using new gaskets.
  14.  
  15. Connect the pellet converter and rear exhaust pipe section using new gaskets. Install the converter brackets and the air pipe. Install the undercovers (front, rear and converter).
  16.  
  17. Lower the vehicle and install the transmission-to-rear engine bolts. Torque the bolts to 23-34 ft. lbs. (31-46 Nm).
  18.  
  19. Install the converter housing side cover and the air cleaner assembly.
  20.  
  21. Connect the vacuum sensing tube to the diaphragm. Install the converter housing upper cover.
  22.  
  23. Connect the inhibitor switch connector and the negative battery cable.
  24.  
  25. Fill the transmission to the proper level. Adjust the inhibitor switch and shift linkage as required.
  26.  

1986-89 RX-7

To remove and install the drive plate bolts, a special angle wrench/adapter (No. 49-0877-45) is required. This wrench has a cutout in the center to accept the drive of a torque wrench.

  1. Disconnect the negative battery cable. Raise and safely support the vehicle.
  2.  
  3. Remove the exhaust pipe with the heat insulator.
  4.  
  5. Matchmark and disconnect the driveshaft. Install the turning holder tool 49-0259-440 into the rear of the extension housing, to prevent the fluid from leaking from the housing.
  6.  
  7. Remove the vacuum and oil pipes, then plug the ends.
  8.  
  9. Remove the starter bracket and starter.
  10.  
  11. Disconnect the speedometer cable.
  12.  
  13. Disconnect the shift rod from the transmission.
  14.  
  15. Remove the oil level gauge and filler pipe.
  16.  
  17. Disengage the harness multi-connector.
  18.  
  19. Remove the service hole coupler.
  20.  
  21. Support the transmission with a jack and remove the transmission mounting bolts. Slide the transmission rearward, until the input shaft clears the eccentric shaft, then remove the transmission/torque converter assembly from under the vehicle.
  22.  

To install:
  1. Position the transmission under the vehicle and slide the unit forward until the input shaft engages the eccentric shaft. Make sure that the matchmarks on the torque converter and drive plate are aligned. Install the transmission-to-engine bolts and torque them to 23-34 ft. lbs. (31-46 Nm).
  2.  
  3. Install the service hole coupler and engage the harness multi-connector.
  4.  
  5. Install the filler pipe and oil level gauge.
  6.  
  7. Connect the shift rod to the control lever on the transmission.
  8.  
  9. Connect the speedometer cable.
  10.  
  11. Install the starter and starter bracket.
  12.  
  13. Connect the vacuum and oil pipes.
  14.  
  15. Remove the holding tool and connect the driveshaft flanges and torque the bolts to 36-43 ft. lbs. (49-58 Nm).
  16.  
  17. Install the exhaust pipe and heat insulator.
  18.  
  19. Connect the negative battery cable. Fill the transmission to the proper level. Adjust the inhibitor switch and shift linkage as required.
  20.  

 
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