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Pump Assembly: Assembly

Fig 1: Installing Pump Driven Gear
G04321434Courtesy of MAZDA MOTORS CORP.
NOTE:
  • The identification dot on the pump driven gear must face downward.
  1. Install the pump driven gear.
    Fig 2: Installing Pump Drive Gear Assembly
    G04321435Courtesy of MAZDA MOTORS CORP.
  2. Install the pump drive gear assembly.
    1. Install the pump drive gear.
    2. Install the pump drive gear insert.
      Fig 3: Measuring Clearance Between Gear And Pump Body Face Using Special Tool
      G04321436Courtesy of MAZDA MOTORS CORP.
  3. Using the special tool, measure the clearance between each gear and the pump body face.
    • If the clearance exceeds specification, install a new pump assembly.
      Fig 4: Installing Special Tool
      G04321437Courtesy of MAZDA MOTORS CORP.
  4. Install the special tool.
    Fig 5: Aligning Pump Support Assembly
    G04321438Courtesy of MAZDA MOTORS CORP.
  5. Align the pump support assembly. Fill the pump gear cavity with clean automatic transaxle fluid to the top of the gears. Align the pump guide screws.
    1. Install the pump body.
    2. Install the pump body separator plate.
    3. Install the pump body separator plate gasket onto the pump body.
    4. Install the pump support.
      Fig 6: Installing Six Pump Support Bolts
      G04321439Courtesy of MAZDA MOTORS CORP.
      NOTE:
      • Install the four pump support bolts in the pump support holes, and remove the special tool. Then install the last two bolts.
  6. Install the six pump support bolts.
    Fig 7: Installing Pump Seal On Pump Body
    G04321440Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • Make sure that the white stripe on the pump seal is visible around the pump body circumference.
  7. Install the pump seal on the pump body.
    Fig 8: Installing Seven Pump Support Seal Rings
    G04321441Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • Make sure the pump support seal rings are overlapped correctly.
  8. Install the seven pump support seal rings.
    Fig 9: Measuring Pump Rotational Torque With Torque Specifications
    G04321442Courtesy of MAZDA MOTORS CORP.
  9. Measure the pump rotational torque.
    1. Install the pump drive shaft.
    2. Measure the pump rotational torque.
    3. Remove the pump drive shaft.
    4. If rotational torque exceeds the specification, disassemble and inspect the pump assembly for contamination or incorrect end clearance.
      Fig 10: Installing No.1 Pump Support Thrust Bearing
      G04321443Courtesy of MAZDA MOTORS CORP.
  10. Install the No.1 pump support thrust bearing.
    • Lubricate the seal rings with clean automatic transaxle fluid.
  11. Install the forward/coast/direct clutch cylinder and reverse clutch drum on the pump support.
    Fig 11: Checking Reverse Clutch Drum
    G04321444Courtesy of MAZDA MOTORS CORP.
    WARNING:
    • Air pressure must not exceed 138 kPa (20 psi). Wear safety glasses when using compressed air. Failure to follow these instructions can result in personal injury.
    NOTE:
    • With each application of air, you should hear the clutch pack apply. A hissing or high-pitched squeal indicates that a seal is damaged or torn. Inspect to find the source and repair as necessary.
  12. Check the following passages of the forward/coast/direct clutch cylinder and reverse clutch drum with moisture-free compressed air, regulated to 276 kPa (40 psi).
    1. Reverse clutch passage.
    2. Forward clutch passage.
    3. Direct clutch passage.
    4. Coast clutch passage.
    5. Converter bypass (located on the bottom).
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