General information
Models equipped with RT are equipped with a hydraulically operated diaphragm clutch. The clutch disc is clamped between the diaphragm pressure plate and the engine flywheel by pressure created by a spring. The splined hub of the clutch disc rotates on the transmission input shaft; the pressure plate cover is bolted to the engine flywheel.
When the clutch pedal is depressed, fluid pressure is created in the master cylinder, which forces the plunger out of the slave cylinder, moving the engagement lever and release bearing. As the release bearing presses on the petals of the pressure plate, the pressure on the clutch disc is relieved, thereby disengaging the engine from the transmission.
The models covered by this manual use two different types of clutch discs, depending on the type of flywheel. On models with a conventional disc-type flywheel, the clutch disc has solid springs and damper springs. The spring springs - located between the friction surfaces of the disc - soften the shock when the clutch is engaged; damping springs - help dampen engine pulsation as it rotates. On models with two-piece flywheels, the damping springs are built into the flywheel.