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

Releasing Torque Converter Clutch

1. Since torque converter clutch solenoid pressure (10) isn't applied to the valve, the valve is positioned on the left side by spring force. At this time, the torque converter pressure flows through oil passage (46) to oil passage (48) and is applied to the torque converter clutch releasing pressure passage of the torque converter. As a result, the torque converter is released.

Locking Torque Converter Clutch

1. Torque converter clutch solenoid output pressure (10) is applied to the valve and moves the valve to the right. At this time, oil passages (46) and (48) are blocked and the torque converter pressure that was applied to the torque converter clutch releasing passage is drained from drain port (X). Also, the torque converter pressure flows through oil passage (46) to oil passage (47) and is applied to the torque converter clutch locking passage. As a result, the torque converter clutch is locked.

Scheme 278

1. Torque converter clutch solenoid output pressure (10) is gradually pressurized and is applied to the left end of the valve. Thus, the valve move gradually to the right and drain port (X) opens.
2. When drain port (X) begins to open, torque converter pressure (48) that was applied to the torque converter clutch release passage of the torque converter will gradually depressurize. Because of the balance between torque converter clutch solenoid output pressure (10) that was applied to the left of the valve, and spring force that was applied to the right of the valve, torque converter pressure (48) that was applied to the torque converter clutch release passage of the torque converter is controlled.
3. The torque converter that is applied to torque converter clutch release passage (48) is depressurized as torque converter clutch solenoid output pressure (10) becomes higher. Thus, smooth torque converter clutch takes place by gradual pressurization of torque converter clutch solenoid output pressure (10).

TORQUE CONVERTER INSPECTION

1. Inspect the outer surface of the torque converter for damage or cracks, and replace it if necessary.
2. Inspect for rust and damage on the pilot hub of the torque converter or on the boss. If there is any, remove the rust completely.

Scheme 279

Scheme 280

1. Disassemble in the order indicated in the figure.

Scheme 281

1. Remove mounting bolts evenly in the pattern shown and remove the oil pump cover from the oil pump housing.

Scheme 282

1. Mark the outer and inner rotors without scratching or denting them, then remove them from the oil pump housing.

Scheme 283

Scheme 284

Scheme 285

1. Check frictional surfaces of the inner rotor, outer rotor, and oil pump housing for damage or abnormal wear.
2. Check bushings for damage or abnormal wear.
3. Check other parts for external.
4. Measure the inner diameter of the oil pump housing A . Specification A Maximum: 42.045 mm {1.6553 in} If not as specified, replace the oil pump housing.
5. Measure the rotor side clearances. Install outer and inner rotors to the oil pump housing. Using straightedge and thickness gauge, measure height difference (side clearance) between the oil pump end surface and the rotor upper surface. If not as specified, replace the oil pump. Clearance Outer Rotor: 0.02-0.04 mm {0.0008-0.0015 in} Inner Rotor: 0.02-0.05 mm {0.0008-0.0019 in}
6. Using thickness gauge, measure the clearance between the outer rotor and the inner rotor. Oil Clearance Standard: 0.02-0.15 mm {0.0008-0.0059 in} If not as specified, replace the oil pump component where necessary.

Scheme 286

Scheme 287

Scheme 288

1. Install the new oil seal to the oil pump housing using the SSTs .
2. Apply ATF to the outer and inner rotors.
3. Align the marks and install the outer and inner rotors.
4. Install the outer and inner rotors to the oil pump housing.
5. Install the bolts securing the oil pump housing as shown in the figure. Tightening Torque 6.9-11.0 N.m {0.7-1.1 kgf.m, 5.1-7.9 ft.lbf}
6. Install a new O-ring to the oil pump housing.

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS