Mazda Automatic Transaxle JA5A-EL. Manual - part 28

 

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Mazda Automatic Transaxle JA5A-EL. Manual - part 28

 

 

AUTOMATIC TRANSAXLE 

K1–17

K1

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.

End Of Sie

REVERSE CLUTCH AND HIGH CLUTCH PREINSPECTION

AME571419500A01

Clutch Operation

1. Set the reverse clutch and high clutch component onto the end cover.

Warning

•••• Using compressed air can cause dirt and other particles to fly out, causing injury to the eyes. 

Wear protective eye wear whenever using compressed air.

Caution

•••• Applying compressed air to the assembled clutch pack for longer than 3 seconds at a time will 

damage the seal. Do not apply compressed air for more than the aforementioned time when 

testing the system.

Note

• Regarding the position of the hole into which air is blown, refer to item “Oil pressure circuit” of this manual.

AMU0517A143

AMU0517A051

K1–18

AUTOMATIC TRANSAXLE 

2. Inspect the clutch operation by applying 

compressed air through the fluid passages 

shown.

• If not as specified, replace parts where 

necessary. 

Air pressure

390 kPa {4.0 kgf/cm

2

, 57 psi} max.

Clutch Clearance

1. Using a thickness gauge, measure clearance 

between the retaining plate and the snap ring.

• If not as specified, replace parts where 

necessary. 

Clearance

Reverse clutch: 0.5—0.8 mm 

{0.020—0.031 in}

High clutch: 0.8—1.1 mm {0.031—0.043 in}

Retaining plate thickness (Reverse clutch)

mm {in}

Retaining plate thickness (High clutch)

mm {in}

End Of Sie

AMU0517A062

AMU0517A063

3.6 {0.142}

3.8 {0.150}

4.0 {0.157}

4.2 {0.165}

—

—

3.0 {0.118}

3.2 {0.126}

3.4 {0.134}

3.6 {0.142}

—

—

AMU0517A064

AMU0517A065

AUTOMATIC TRANSAXLE 

K1–19

K1

REVERSE CLUTCH AND HIGH CLUTCH DISASSEMBLY

AME571419500A02

1. Disassemble in the order indicated in the table.

.

AMU0517A053

1

Snap ring

2

Retaining plate

3

Drive plate

4

Driven plate

5

Snap ring

6

Retaining plate

7

Drive plate

8

Driven plate

9

Snap ring 

(See 

K1–20 Snap Ring Disassembly Note

)

10

Spring retainer

11

Return spring

12

High clutch piston

(See 

K1–20 Reverse Clutch Piston and High Clutch 

Piston Disassembly Note

)

13

O-ring

14

O-ring

15

Reverse clutch piston

(See 

K1–20 Reverse Clutch Piston and High Clutch 

Piston Disassembly Note

)

16

O-ring

17

O-ring

18

Clutch drum

K1–20

AUTOMATIC TRANSAXLE 

Snap Ring Disassembly Note

Caution

•••• Depress the spring retainer only enough to remove the snap ring. Overpressing will damage the 

retainer component edges.

1. Install the SSTs in the clutch drum as shown.

2. Compress the spring and retainer.

3. Remove the snap ring.

4. Remove the SSTs.

Reverse Clutch Piston and High Clutch Piston Disassembly Note

1. Remove the clutch piston as follows:

(1) Assemble the clutch drum to the end cover.

(2) Using an air gun, blow air into circuit as 

shown in the figure to blow out the piston.

Note

• Regarding the position of the hole into which 

air is blown, refer to item “Oil pressure 

circuit” of this manual.

2. Remove the O-rings from the piston.

End Of Sie

REVERSE CLUTCH AND HIGH CLUTCH INSPECTION

AME571419500A03

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}

Spring and Retainer Inspection

1. Measure the free length of the spring and inspect for deformation.

• If not within the specification, replace the spring and retainer.

Specification

Reverse Clutch Piston Inspection

Warning

•••• Using compressed air can cause dirt and other particles to fly out, causing injury to the eyes. 

Wear protective eye wear whenever using compressed air.

AMU0517A165

AMU0517A057

Outer 

diameter 

(mm {in})

Free length 

(mm {in})

No. of 

coils

Wire thickness x 

wire width

(mm {in})

73.0 {2.87}

27.0 {1.06}

14

1.1 {0.043} x 

5.5 {0.217}

 

 

 

 

 

 

 

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