Assembly Procedure

Verify that there is no air leakage when applying compressed air through the oil hole opposite the return spring.
Verify that there is air flow when applying compressed air through the oil hole on the return spring side.
Air Pressure
1. 390 kPa {4.0 kgf/cm ² , 57 psi} max.
Fig 1: Verifying Air Flow
Courtesy of MAZDA MOTORS CORP.
Replace the direct clutch component if damaged or malfunctioning.
Apply ATF to the new O-ring.
Install the O-ring to the direct clutch piston.
Install the direct clutch piston to the direct clutch hub.
Install the return spring and retainer component and snap ring to the direct clutch hub.
Install the SSTs .

CAUTION:

Depress the piston return spring only enough to install the snap ring. Overpressing will damage the retainer component edges.

Compress the spring and retainer component.
Install the snap ring.

Fig 2: Installing Snap Ring
Courtesy of MAZDA MOTORS CORP.
Remove the SSTs .
Install the drive and driven plates in the following order.

Fig 3: Installing Drive & Driven Plates
Courtesy of MAZDA MOTORS CORP.
Install the retaining plate.
Install the snap ring.
Install the direct clutch component onto the center support.
Using a dial indicator, measure the direct clutch piston stroke applying and releasing the compressed air as shown.
Air Pressure
1. 390 kPa {4.0 kgf/cm ² , 57 psi} max.
Piston Stroke
1. 1.60-1.64 mm {0.05-0.06 in}
Fig 4: Measuring Direct Clutch Piston Stroke
Courtesy of MAZDA MOTORS CORP.
If it is not within standard range, use 3.55 mm {0.14 in}, 3.75 mm {0.15 in}, or 4.0 mm {0.16 in} drive plate to adjust it to standard stroke.
Remove the direct clutch component.