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Home >> Mazda >> 2002 >> MX-5 Miata Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Overhaul >> Automatic Transmission >> 4GR Case And 4GR Brake Disassembly/Assembly >> Assembly Procedure

Assembly Procedure

  1. Install seal ring to the 4GR case.
  2. Apply ATF to the new O-ring.
  3. Install the O-ring to the 4GR brake piston.
  4. Install the 4GR brake piston to the 4GR case.
  5. Install the spring, spring retainer, and snap ring.
  6. Install the bearing race to the 4GR case.
  7. Install the internal gear.
  8. Install the dished plate with the dished side facing upward.
    Fig 1: Installing Dished Plate
    G03186868Courtesy of MAZDA MOTORS CORP.
  9. Install the drive and driven plates in the following order.
    Fig 2: Installing Drive & Driven Plates
    G03186869Courtesy of MAZDA MOTORS CORP.
  10. Install the retaining plate.
  11. Install the snap ring.
  12. Measure the clearance between the snap ring and the retaining plate. Make several measurements and calculate the average value.

    Clearance 

    1. 0.56-1.62 mm {0.03-0.06 in} 

    Fig 3: Measuring Clearance Between Snap Ring & Retaining Plate
    G03186870Courtesy of MAZDA MOTORS CORP.
  13. If not as specified, replace the drive plate.
  14. Install the thrust washer to the internal gear.
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