Pic. 3.1. Types of clutches installed on Corolla Verso cars
The new Corolla Verso has a clutch with the following specifications.
A dry single plate clutch is used. Clutch specifications correspond to all engines that are equipped with the Corolla Verso model.
On models with C251 and E358 manual transmissions, the clutch master cylinder body and piston are made of plastic instead of aluminum.
A special clutch pedal linkage, used on models with a 1CD-FTV engine, allows you to reduce the effort on the pedals.
A hydraulic damper is installed in the clutch hydraulic drive on models with a 1CD-FTV engine to reduce the level of vibration transmitted to the clutch pedal.
To reduce transmission noise and vibration on models with the 1CD-FTV engine, a torsional vibration damper on the flywheel was used for the first time.
To reduce clutch pedal vibrations, a hydraulic damper is now installed on models with a 1CD-FTV engine.
The clutch mechanism used on C251A multimodal manual transmission models has the following features.
Maintenance recommendation
When replacing the clutch on models with a C251A multimodal manual transmission, only a dedicated basket and driven plate can be installed. Before disassembling and assembling the clutch mechanism, as well as when replacing the basket, driven disk, clutch release bearing, fork, lever or drive parts, return the multimodal manual transmission to its original position.
Clutch Master Cylinder
Pic. 3.2. Clutch Master Cylinder
The clutch master cylinder body and piston are made of plastic. The inner surface of the cylinder, mating with the piston, and the attachment point of the hydraulic drive tube are made in the form of steel embedded parts. This design provides high strength and low weight of the clutch master cylinder housing.
Maintenance recommendation
The master cylinder cannot be dismantled, so it must be replaced as an assembly.
Hydraulic damper
Pic. 3.3. hydraulic damper
A hydraulic damper is installed in the clutch hydraulic drive of cars with a 1CD-FTV engine between the main and working cylinders. This solution allows to reduce the vibration of the clutch pedal, as well as to increase the smoothness and information content of the drive as a whole (pic. 3.3).
The hydraulic damper, consisting of two valves directed in opposite directions, minimizes the transmission of flow pulsations to the clutch pedal resulting from fluctuations in engine speed.
Table 3.1. Clutch specifications for inspection and adjustment work
Table 3.2. Rated tightening torques
Table 3.3. Corolla Verso clutch features
* Multimodal manual transmission (hereinafter - M-MT).