Possible gimbal malfunctions, their causes and methods of elimination (VAZ-21213, 1994-2006)

Cause of malfunction	Elimination Method
1. Loosening the bolts and nuts securing the flexible coupling and universal joint flanges.	1. Tighten the nuts to the torques given in the appendix.
2. Increased circumferential clearance in the spline connection of the front or rear cardan shafts.	2. Check the size of the gap on the average diameter of the spline; if it is more than 0.30 mm, replace worn parts.
3. Wear of cardan joints.	3. Repair joints with replacement of worn parts.

Cause of malfunction	Elimination Method
1. Deformation of the front or rear driveshafts.	1. Straighten on a press or replace shafts.
2. Imbalance of cardan shafts.	2. Check and balance the shafts (see «Shaft balancing»).
3. Wear or damage to the centering sleeve of the flexible coupling flange of the intermediate cardan shaft.	3. Replace the coupling flange bushing.
4. Wear of cardan joints.	4. Repair joints with replacement of worn parts.
5. Weakening of the gland cage of the splined connection of the front or rear propeller shafts.	5. Press the stuffing box and crimp its clip, if the lubricant leaks, replace the stuffing box.
6. Insufficient lubrication of splines.	6. Lubricate spline connections with Fiol-1 or Fiol-2U grease through grease fittings.

Cause of malfunction	Elimination Method
1. Loosening of the gland cage of the splined connection of the front or rear propeller shafts.	1. Press the stuffing box and crimp the clip, replace the worn stuffing box.
2. Damage to the protective cover of the hinge of equal angular velocities of the intermediate shaft.	2. Disassemble the hinge, replace the grease and the protective cover. If parts are damaged, replace the hinge assembly.