Mazda 5. Manual — part 34
05–17–56
AUTOMATIC TRANSAXLE
10. Apply ATF to new seal rings and install them onto
the oil pump cover.
Seal ring inner diameter
47.1 mm {1.854 in}
End Of Sie
FORWARD CLUTCH DISASSEMBLY/ASSEMBLY
B3E051719500A01
1. Perform the preinspection before disassembly.
(See 05–17–124 Forward Clutch Preinspection.)
2. Disassemble in the order indicated in the table.
3. Assemble in the reverse order of disassembly.
Snap Ring Disassembly Note
1. Install the SST to the forward clutch.
Caution
OIL PUMP HOUSING
SEAL RING
OIL PUMP COVER
B3E0517A107
1
Forward clutch hub
2
Snap ring
3
Retaining plate
4
Drive and driven plate
5
Snap ring
(See 05–17–56 Snap Ring Disassembly Note.)
6
Seal plate
7
Springs and retainer component
8
Forward clutch piston
(See 05–17–57 Forward Clutch Piston
Disassembly Note.)
9
Forward clutch drum and turbine shaft
ATF
ATF
ATF
SELECTIVE
SST
R
9
8
7
5
4
3
1
2
6
B3E0517A108
AUTOMATIC TRANSAXLE
05–17–57
05
• Depress the seal plate only enough to remove the snap ring. Overpressing will damage the seal
plate assembly edges.
2. Compress the seal plate.
3. Remove the snap ring.
4. Remove the SST, then remove the seal plate and
spring and retainer component.
Forward Clutch Piston Disassembly Note
1. Set the forward clutch drum and turbine shaft onto the oil pump.
2. Remove the forward clutch piston by applying
compressed air through the fluid passage.
Air pressure
392 kPa {4.0 kgf/cm
2
, 57 psi} max.
Assembly Procedure
1. Measure the facing thickness in three places, and calculate the average value.
Standard
1.60 mm {0.063 in}
Minimum
1.45 mm {0.057 in}
• If not within the specification, replace the drive plates.
2. Measure the spring free length.
Spring free length
Standard: 17.2 mm {0.677 in}
Minimum: 15.2 mm {0.598 in}
• If not within the specification, replace the
spring and retainer component.
49 B019 012
SEAL PLATE
PRESS
B3E0517A109
FORWARD CLUTCH
PISTON
FORWARD CLUTCH FLUID PASSAGE
B3E0517A110
B3E0517A111
05–17–58
AUTOMATIC TRANSAXLE
3. Verify that there is airflow when applying
compressed air through the fluid passage.
Air pressure
392 kPa {4.0 kgf/cm
2
, 57 psi} max.
4. Replace the forward clutch drum and turbine shaft
if damaged or malfunctioning.
Caution
• Installing the forward clutch piston may
damage its seal. Carefully install the
forward clutch piston by pushing evenly
around the circumference.
5. Apply ATF to the circumference of the forward
clutch piston seal, and install the piston into the
forward clutch drum and turbine shaft.
6. Install the spring and retainer component.
7. Apply ATF to the seal plate, and install it onto the
forward clutch drum.
8. Install the SST to the forward clutch drum and
turbine shaft as shown.
Caution
• Depress the seal plate only enough to
remove the snap ring. Overpressing will
damage the seal plate assembly edges.
9. Compress the seal plate.
10. Install the snap ring.
11. Remove the SST.
12. Install the drive and driven plates in the following
order.
Driven—Drive—Driven—Drive—Driven—Drive—
Driven—Drive
13. Install the retaining plate.
B3E0517A112
FORWARD CLUTCH PISTON
FORWARD CLUTCH DRUM
AND TURBINE SHAFT
B3E0517A113
SEAL PLATE
SPRING AND
RETAINER
COMPONENT
B3E0517A114
49 B019 012
SEAL PLATE
PRESS
B3E0517A109
AUTOMATIC TRANSAXLE
05–17–59
05
14. Install the snap ring.
15. Measure the forward clutch clearance.
(1) Install the forward clutch in the oil pump, and
set the dial gauge.
(2) Secure the forward clutch by lightly pressing
down with a press or similar tool.
(3) Apply compressed air to the part indicated in
the figure and let the forward clutch piston
stroke three times.
Air pressure
392—441 kPa {4.0—4.5 kgf/cm
2
, 57—63 psi}
(4) Apply compressed air and operate the
forward clutch piston. Read the value when
the indicator of the dial gauge stops.
(5) Release the compressed air and read the dial
gauge when the forward clutch piston is not
operating.
(6) Calculate the forward clutch clearance
according to the following formula:
Step (4) value— Step (5) value= Forward clutch clearance.
(7) Measure the clearances at four locations (90
° apart) by following the steps (3) to (6).
Verify that the average value is within the
specification below:
Forward clutch clearance
1.50—1.80 mm {0.059—0.071 in}
• If not as specified, remove the snap ring
and measure its thickness.
(8) Add the thickness to the average value
calculated in step (7), and select the snap ring
whose range includes the value.
SNAP RING
RETAINING PLATE
DRIVE AND
DRIVEN PLATE
B3E0517A115
PRESS
DIAL GAUGE
RETAINING PLATE
B3E0517A116
FORWARD CLUTCH
FLUID PASSAGE
B3E0517A117
SNAP RING
RETAINING PLATE
CLEARANCE
B3E0517A118
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