Automatic Transaxle - Overhaul [JA5A-EL]: Diagnosis Mazda MPV II рестайлинг

DRIVE PLATE INSPECTION

1. Measure the facing thickness in three places and calculate the average value. If not within the specification, replace the drive plates. Thickness Minimum: 1.7 mm {0.067 in}

Scheme 325

1. Measure the free length of the spring and inspect for deformation. If not within the specification, replace the spring and retainer.

REVERSE CLUTCH PISTON INSPECTION

Scheme 326

1. Verify that there is no air leakage when applying compressed air through the oil hole opposite the return spring.
2. Verify that there is airflow when applying compressed air through the oil hole on the return spring side. Replace the coasting clutch piston if it is damaged or malfunctioning. Air Pressure 390 kPa {4.0 kgf/cm 2 , 57 psi} max.

Scheme 327

Scheme 328

Scheme 329

Scheme 330

1. Apply a coat of ATF to new O-rings, then install them to reverse and high clutch pistons.
2. Apply a coat of ATF to inside of reverse clutch piston, then install the high clutch piston into the reverse clutch piston while rotating the piston by hand.
3. Apply a coat of ATF to inside of drum, then install the reverse clutch piston into drum while rotating the piston by hand. NOTE: After installing required parts to the piston, ensure that the piston rotates smoothly by hand. If not, the O-ring may be caught.
4. Install the return spring.
5. Install the spring retainer as follows. Position the spring retainer. CAUTION: Depress the spring retainer only enough to remove the snap ring. Overpressing will damage the retainer component edges. Install the SSTs in clutch drum as shown. Install the snap ring. Remove the SSTs . CAUTION: Depress the spring retainer only enough to install the snap ring. Overpressing will damage the retainer component edges.
6. Install the plates and driven plates in the order as shown.
7. Install the retaining plate.
8. Install the snap ring.

1. Measure the facing thickness in three places and calculate the average value. If not within the specification, replace the drive plates. Thickness Minimum: 1.7 mm {0.067 in}

SPRING & RETAINER INSPECTION

1. Measure the free length of the spring and inspect for deformation. If not within the specification, replace the spring and retainer.

Scheme 331

Scheme 332

Scheme 333

1. Apply a coat of ATF to new seal ring and new O-ring, then install them onto piston.
2. Apply a coat of ATF to inside of the drum, then install the piston while rotating it by hand.
3. Apply a coat of ATF to a new O-ring, then install it to the cancel force cover.
4. Position the return spring and cancel force cover.
5. Install the SSTs in the clutch drum as shown.
6. Install the snap ring.
7. Remove the SSTs .
8. Install the dished plate, drive plates, and driven plates in the order as shown.
9. Install the retaining plate.
10. Install the snap ring.

1. Measure the facing thickness in three places and calculate the average value. If not within the specification, replace the drive plates. Thickness Minimum: 1.7 mm {0.067 in}

Scheme 334

1. Measure the spring free length. If not within the specification, replace the spring.

CLUTCH PISTON INSPECTION

Scheme 335

1. Verify that there is no air leakage when applying compressed air through the oil hole opposite the return spring.
2. Verify that there is airflow when applying compressed air through the oil hole on the return spring side. Replace the 3-4 clutch piston if it is damaged or malfunctioning. Air Pressure 390 kPa {4.0 kgf/cm 2 , 57 psi} max.

Scheme 336

Scheme 337

Scheme 338

1. Apply a coat of ATF to new O-rings, then install them to the piston.
2. Apply a coat of ATF to inside of the clutch drum, then install the piston while rotating it by hand.
3. Install the return spring.
4. Position the spring retainer.
5. Install the SSTs in the clutch drum as shown.
6. Install the snap ring.
7. Remove the SSTs .
8. Install the drive plates and driven plates in the order as shown in the figure.
9. Install the retaining plate.
10. Install the snap ring.
11. Place the direct clutch upside down, then install the one-way clutch and retainer.
12. Install the snap ring.

1. Measure the facing thickness in three places, and determine the average of the three readings. If not within the specification, replace the drive plates. Thickness Minimum: 1.7 mm {0.067 in}

Scheme 339

Scheme 340

1. Measure the free length of each spring and inspect for deformation. If not within the specifications, replace the spring and retainer.