Possible faults of the Niva Chevrolet clutch
Cause of fault
Remedy
Incomplete disengagement of the clutch (clutch "leads")
- Warping of the driven disk (end runout more than 0.5 mm)
Straighten the disk or replace with a new one
- Loose rivets or breakage of the friction linings of the driven disk
Replace the driven disk assembly
- Seizure of the driven disk hub on the splines of the input shaft
Clean the splines, wash with White Spirit.
If the splines are worn, replace the input shaft or driven disk
- Air in the clutch hydraulic system
Bleed the system, article - "How to bleed the clutch"
The stroke of the slave cylinder must be at least 24 mm
- Fluid leaking from the hydraulic system through connections or damaged pipes
Tighten the connections, replace damaged parts, bleed the hydraulic system
- Fluid leaking from the master cylinder or slave cylinder of the clutch release drive
Replace the sealing elements or replace the cylinders as a whole, bleed the system, article - "How to replace the clutch cylinders"
- Skewing or warping of the pressure plate
Replace the clutch housing with the pressure plate as an assembly, article - "How to replace the clutch"
- The runout of the petals of the pressure spring is more than 0.8 mm
Replace the clutch housing with the pressure plate assembly
Incomplete clutch engagement (clutch "slips")
- Increased wear or burning of the friction linings of the driven disk
Replace the driven disk assembly
Oiling of the friction linings of the driven disk, flywheel and pressure plate surfaces
Thoroughly wash the surfaces with white spirit, eliminate the causes of oiling of the disks
- The compensation hole of the master cylinder is clogged
Flush the cylinder, clean the compensation hole, bleed the system
Damage or jamming of the clutch release drive
Eliminate the causes of jamming
Replace damaged parts
Jerking during clutch operation
- Seizure of the driven disk hub on the splines of the input shaft
Clean the splines, wash with white spirit
If the splines are worn, replace the input shaft or driven disk
- Oiling of the friction linings of the driven disk, flywheel surfaces and pressure plate
Thoroughly wash the oiled surfaces with white spirit, eliminate the causes of oiling of the disks
- Seizure in the clutch release drive mechanism
Replace damaged parts, eliminate the causes causing seizure
- Loosening of the rivets of the friction linings of the driven disk
Replace the driven disk in assembly
Damaged or warped pressure plate surface
Replace clutch housing with pressure plate assembly
Increased noise when disengaging clutch
- Wear, damage or grease leakage from clutch release bearing
Replace clutch release sleeve with bearing assembly
- Wear of front bearing of gearbox input shaft
Replace bearing
Increased noise when engaging clutch
- Damper spring breakage or decreased elasticity
Replace driven disk assembly