SECTION 308-00: Manual Transmission/Transaxle and Clutch - General Information
1998 Contour/Mystique Workshop Manual
DESCRIPTION AND OPERATION
Manual Transaxle and Clutch
Manual Transaxle and Clutch - General Information
This section covers general procedures for diagnosis and testing the clutch system. For additional information, refer to Section 308-01 . For specified clutch system service procedures. For additional information, refer to Section 308-02 . For a complete description of the manual transaxle. For additional information, refer to Section 308-03 .
The clutch system includes:
- Flywheel.
- Clutch disc.
- Clutch pressure plate.
- Clutch master cylinder.
- Clutch slave cylinder.
- Clutch release fork.
- Clutch release hub and bearing.
The clutch master cylinder transmits fluid pressure to the slave cylinder, which in turn moves the clutch release fork and the clutch release hub and bearing.
The clutch master cylinder uses brake fluid and shares a common reservoir with the brake master cylinder
The clutch is a single plate, dry-friction disc with a diaphragm-style spring clutch pressure plate. The clutch disc has a hub which is splined to the input shaft. The clutch disc has friction material where it contacts the flywheel and the clutch pressure plate. Torsion springs on the clutch disc help absorb the engine torque pulses. The clutch pressure plate applies pressure to the clutch disc, holding it tightly against the surface of the flywheel.
In the engaged position, the diaphragm spring holds the clutch pressure plate against the clutch disc, so that engine torque is transmitted to the input shaft. When the clutch pedal is depressed, the clutch release hub and bearing pushes the diaphragm spring center toward the flywheel. The diaphragm spring pivots at the fulcrum, relieving the load on the clutch pressure plate. Steel spring straps riveted to the clutch pressure plate cover pull the clutch pressure plate from the clutch disc, disengaging the engine torque from the transaxle and enabling the gears to be changed.
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Inspection and Verification - MTX-75
The following checks should be carried out before repairing or replacing the transaxle:
Poor gear shifting
- Check the operation of the clutch: Lay a block of wood approx. 25 mm thick under the clutch pedal and depress the clutch pedal as far as the stop. If 1st or 2nd gear can be selected with no problem with the engine running and the parking brake applied, the clutch is OK. If the gear cannot be selected, repair the clutch.
- Check the selector mechanism:
- The free play in the gearshift lever must be no more than 15 mm.
- If the gearshift lever free play is too great, check the gearshift cables and replace them if necessary.
- If the gearshift lever free play is OK, adjust the gearshift linkage. For additional information, refer to Section 308-06 .
- Check the transaxle fluid level and top up with Automatic Transmission Fluid ESD-M2C186-A if necessary.
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