Subaru 2002 Impreza Service Manual page 278

OUTLINE
Clutch
1. Outline
A: NON-TURBO MODEL
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The clutch control operates the release fork using the hydraulic pressure generated in the mas-
ter cylinder when the pedal is depressed. This ensures smooth and reliable clutch control with
minimum frictional resistance.
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The clutch itself is a push type clutch. When the clutch pedal is depressed, the self-aligning re-
lease bearing is caused to slide on a guide pressing the center of the diaphragm spring. The
warped diaphragm spring disengages the pressure plate from the clutch disc.
The clutch using a diaphragm spring has the advantage of little variation in push load even when
the clutch disc facing is worn.
The diaphragm spring is located inside the clutch cover.
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The clutch has a clutch disc between the flywheel and the pressure plate.
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Inside the clutch cover, there is a diaphragm spring and a pressure plate combined with each
other by means of strap plates, which also serve to prevent the pressure plate from turning.
B: TURBO MODEL
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The turbo model adopts a hydraulic control which is appropriate for increased clutch load.
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The clutch control system operates the release fork using the hydraulic pressure that is gener-
ated in the master cylinder when the clutch pedal is depressed.
0
The clutch itself is a pull type clutch. When the clutch pedal is depressed, the self-aligning re-
lease bearing is caused to slide on a guide pulling the center of the diaphragm spring. The warped
diaphragm spring disengages the pressure plate from the clutch disc.
The clutch using a diaphragm spring has the advantage of little variation in push load even when
the clutch disc facing is worn.
The diaphragm spring is located inside the clutch cover.
0
The clutch has a clutch disc between the flywheel and the pressure plate.
0
Inside the clutch cover, there is a diaphragm spring and a pressure plate combined with each
other by means of strap plates, which also serve to prevent the pressure plate from turning with
respect to the clutch cover.
CL-2