Replacement of constant velocity joint protective boots (Fiesta 4)

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The service life of the protective covers of the constant velocity joints of the drive shafts usually does not exceed the service life of the shafts, since they are all subject to intense external influences. Repair kits can be purchased in the retail network, which an experienced mechanic can easily replace.



SEQUENCE OF WORKS

1. Remove the drive shaft from the vehicle.

2. Remove the clamps securing the damaged or leaking constant velocity joint. Move the damaged protective cover to the center of the drive shaft.

3. Remove excess grease from the constant velocity joint.

4. Remove the CV joint retaining ring. If necessary, use special pliers to remove retaining rings. Remove the outer CV joint from the drive shaft, or use a hammer as a last resort.

5. Install the new protective cover onto the drive shaft.

6. If the inner joint protective boot is damaged, loosen the clamps and remove the protective boot from the drive shaft.

7. Before installing the new protective boot, fill the cleaned ball joint with new grease, which is included in the repair kit.

8. Press the drive shaft into the ball joint until the retaining ring snaps into place.



9. Carefully pull the new protective boot over the constant velocity joint and install it on the mounting surfaces, which must be perfectly clean.

10. Install new mounting clamps from the repair kit and tighten them by hand so that the retainer fits into the nearest hole.

11. When tightening the clamps, primarily from the wheel hub side, make sure that the protruding free part of the clamp tension band is pressed as much as possible against the shaft. Otherwise, when it rotates, the protruding part of the clamp tension band may come into contact with surrounding parts, which will lead to weakening of the clamp tightening and its depressurization.



PRACTICAL ADVICE

Distribution of lubricant in the protective boot of the constant velocity joint

Before finally tightening the clamps of the protective covers, evenly distribute the new grease under the cover. To do this, squeeze the corrugated cover and at the same time carefully turn the hinge - the grease will be evenly distributed in the cover and hinge. Then lift the lower edge of the protective cover with a screwdriver and squeeze it a little to remove excess air from under the cover. Make sure that the cover is installed on the wheel drive shaft without transverse folds.






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