Automatic Transaxle Diagnosis & Overhaul: Adjustments Kia Optima I

BRAKE REACTION PLATE END PLAY ADJUSTMENT

Replace the pressure plate of the low-reverse brake with the special tool, and then install the brake disc, brake plate and snap ring as shown in the figure. Install the reaction plate and the used snap ring. Move the special tool to measure the end play, and then replace the snap ring to adjust the end play to standard value.

Standard value : 0 - 0.16 mm

Scheme 24

SECOND BRAKE END PLAY ADJUSTMENT

Replace the pressure plate of the second brake with the special tool, and then install the brake disc and brake plate as shown in the figure. Install the return spring, second brake piston and snap ring.

Scheme 25

Standard value : 0.79 - 1.25 mm

Scheme 26

LOW-REVERSE BRAKE END PLAY ADJUSTMENT

Reverse the transmission. Measure the axial play.

Standard value : 1.65 - 2.11 mm

Scheme 27

UNDERDRIVE SUN GEAR END PLAY ADJUSTMENT

Install the used thrust race #8, and then the rear cover. Measure end play of the underdrive sun gear. Replace thrust race #8 to adjust the play to the standard value.

Standard value : 0.25 - 0.45 mm

Scheme 28

Installing the underdrive clutch hub makes it easy to measure the end play of the underdrive sun gear.

DIFFERENTIAL CASE PRELOAD ADJUSTMENT

Place a solder (approx. 10 mm in length, 3 mm in diameter) on the torque converter housing as shown in the figure.

Scheme 29

Install the torque converter housing to the transmission case without applying sealant. Tighten its mounting bolts to the specified torque. Loosen the bolts, and remove the solder, use a micrometer to measure the thickness (T) of the pressed solder. Select a-spare which thickness is within the following value.

Standard value : (T+0.045 mm) to (T+0.105 mm)

Scheme 30

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Scheme 32

Scheme 33

Scheme 34

CHECK TRANSAXLE RANGE SWITCH AND CONTROL CABLE ADJUSTMENT

1. Set the selector lever to the "N" position.
2. Loosen the control cable to manual control lever coupling nut to free the cable and lever.
3. Set the manual control lever to the neutral position.
4. Loosen the transaxle range switch body mounting bolts and then turn the transaxle range switch body so the hole in the end of the manual control lever and the hole (cross section A-A in the figure) in the flange of the transaxle range switch body flange are aligned.
5. Tighten the transaxle range switch body mounting bolts to the specified torque. Be careful at this time that the position of the switch body is not changed.
6. Gently push the transmission control cable in the direction of the arrow, and then tighten the adjusting nut.
7. Check that the selector lever is in the "N" position.
8. Check that each range on the transmission side operates and functions correctly for each position of the selector lever.