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Home >> Mazda >> 2004 >> B4000 Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission [Service, Removal & Installation] >> Reverse Servo Assembly Removal/Installation >> Installation Note

Installation Note

  1. Clean and inspect the reverse servo piston bore and the reverse band servo piston and rod.
  2. Install the reverse band servo piston and rod into the servo bore along with a reverse servo return spring.
    Fig 1: Installing Reverse Band Servo Piston & Rod
    G01938307Courtesy of MAZDA MOTORS CORP.
  3. Install SST  :
    1. Install a new reverse servo separator plate cover gasket.
    2. Tighten the three screws.
    Fig 2: Installing SST
    G01938308Courtesy of MAZDA MOTORS CORP.
  4. Tighten the servo gauge adjusting screw.
    Fig 3: Tightening Servo Gauge Adjusting Screw
    G01938309Courtesy of MAZDA MOTORS CORP.
  5. Install dial indicator with bracketry on the transmission case.
    1. Position the indicator on the piston pad.
    2. Set the dial indicator to zero.
    Fig 4: Installing Dial Indicator With Bracketry On Transmission Case
    G01938310Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • If the piston travel in this step is 3-5.6 mm (0.120-0.220 in), it is within specification. If the piston travel is greater than 5.6 mm (0.220 in), use the next longer piston and rod. If the piston travel is less than 3 mm (0.120 in), use the next shorter piston and rod.
  6. Back out the servo gauge adjusting screw until it bottoms out on the tool. Record the distance the servo piston traveled.
    Fig 5: Backing Out Servo Gauge Adjusting Screw
    G01938311Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Make sure the test spring is removed after this step.
  7. Use the above procedure to check the piston travel with the newly selected reverse band servo piston and rod (if required) to make sure that the piston travel is 3-5.6 mm (0.120-0.220 in). Remove the servo gauge and the reverse band servo return spring.
    • Grooves are located on reverse servo rod.
    Fig 6: Groove - Length Table
    G01938312Courtesy of MAZDA MOTORS CORP.
    Fig 7: Checking Piston Travel
    G01938313Courtesy of MAZDA MOTORS CORP.
  8. Install the selected reverse band servo piston and rod.
    1. Install the reverse band servo piston and rod assembly.
    2. Install a new reverse servo separator plate cover gasket.
    3. Install the reverse band servo cover.
      • Loosely install the reverse servo piston cover bolts.
      Fig 8: Installing Selected Reverse Band Servo Piston & Rod
      G01938314Courtesy of MAZDA MOTORS CORP.
    4. Tighten the servo cover bolts in the sequence shown.
    Fig 9: Servo Cover Bolts Tightening Sequence
    G01938315Courtesy of MAZDA MOTORS CORP.
  9. Install the (1) oil strainer.
  10. Install the (2) bolt.
    Fig 10: Installing Oil Strainer
    G01938316Courtesy of MAZDA MOTORS CORP.
  11. Position a new oil pan gasket on the transmission fluid pan.
  12. Install and align the oil pan.
    • Loosely install the 18 oil pan bolts.
    Fig 11: Installing & Aligning Oil Pan
    G01938317Courtesy of MAZDA MOTORS CORP.
  13. Tighten the oil pan bolts.
    • Use a crisscross sequence to tighten the oil pan bolts.
    Fig 12: Tightening Oil Pan Bolts
    G01938318Courtesy of MAZDA MOTORS CORP.
  14. Lower the vehicle.
    NOTE:
    • When the battery has been disconnected and reconnected, some abnormal drive symptoms can occur while the vehicle relearns its adaptive strategy. The customer needs to be notified that they may experience slightly different upshifts either soft or firm and this is a temporary condition and will eventually return to normal operating condition.
  15. Connect the negative battery cable.
  16. Fill the transmission to the proper fluid level and check for proper transmission operation.
    • Use equivalent.
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