- Cause of malfunction
Remedy
Clutch does not fully disengage (clutch "drives"):
- Increased free travel of the clutch pedal (over 55 mm)
Adjust as described in "Removal and installation of clutch discs UAZ-3151 »
- Deformed driven disk
Repair or replace disc
- Air got into the hydraulic drive system
Bleed the system
- Parts of the driven disk are destroyed
Replace disc
- The hub of the driven disk is stuck on the splines of the input shaft
Remove the cause of the jam (burrs, dirt, nicks, etc.)
- Do not lie in the same plane parallel to the plane of the flywheel, the release levers of the pressure plate
Disassemble the clutch and adjust the release levers
- Increased gaps in the clutch drive
Replace worn parts
- The full travel of the clutch pedal has not been adjusted
Adjust
Clutch does not fully engage when the pedal is released (clutch slips):
- There is no free play of the clutch pedal
Adjust the clutch release actuator
- The mechanism for moving the pressure plate is stuck
Remove the cause of the jam or replace the disc
- Reduced force or broken pressure springs
Replace pressure springs
- Oiling discs (friction surfaces)
Rinse the rims and pads with gasoline and wipe them dry
- Clutch overheating due to prolonged slipping
Let the clutch cool down
- Clogging of the compensation hole of the clutch release master cylinder
Clean the compensation hole and change the fluid if it is dirty
Unsmooth clutch engagement (with jerks and vibrations):
- Lubrication and sticking of discs (friction surfaces)
Replace friction linings or wash them in gasoline and sand with fine sandpaper to remove protruding bumps. Clean the surfaces of the flywheel and pressure plate with the same sandpaper. Eliminate the cause of oiling.
- Wear of friction linings to rivets
Replace friction linings
- Do not lie in the same plane parallel to the plane of the flywheel, the release springs of the pressure plate
Disassemble the clutch and adjust the release levers
Clutch noise (when depressing the pedal):
- Clutch bearing worn or out of lubrication
Lubricate the bearing. If the noise persists, replace the bearing
Clutch pedal not holding up:
- Broken release spring
Replace the spring