Sequence of work
The time shown is 15 minutes.
1. Apply the vehicle's parking brake and start the engine.
2. Engage 3rd gear, slowly release the clutch pedal and lightly depress the accelerator pedal. With a good clutch, the engine should stall. If the engine still continues to run, then the automatic clearance adjustment is at the extreme limit. In this case, the clutch disc needs to be replaced.
Clutch slips
Clutch slip is especially noticeable when driving in top gear, when maximum power is required from the engine and when the engine is loaded «scrolls», that is, it develops noticeably higher revolutions than it corresponds to the speed of movement. When starting, clutch wear is less noticeable. The reason for this may be, in addition to wear or oiling of the driven disk, wear on the flywheel and rubbing surfaces of the pressure disk, or weak clutch pressure. As a result, it may be necessary to replace not only the driven, but also the pressure plate. Clutch testing should be carried out at the workshop during routine maintenance using a special calibration tool.
Clutch disengagement
The time shown is 15 minutes.
1. Start the engine, warm it up and bring it to idle speed.
2. Fully depress the clutch pedal, wait approximately 3 seconds and engage reverse gear. If extraneous sounds are present, this means that the driven disk is not fully released, and the clutch is not completely disengaged.
If the gear change is accompanied by creaking or crackling sounds, the clutch is most likely not fully disengaging. To check, carry out the test described below with the inclusion of an unsynchronized reverse gear. This test eliminates the possibility that the cause of extraneous sounds is a malfunction of the gearbox.