There is practically no point in disassembling the hinge. This work is labor-intensive, and if the boot is torn, the dirt that has gotten into the hinge has already ruined the hinge parts. You cannot replace the hinge parts separately, so the best solution is to replace the hinge assembly and its mudguard. The appearance of traces of grease on the hinge indicates that the boot is torn.
If during operation traces of oil leakage were noticed at the points where the front wheel drive is connected to the gearbox, replace the inner joint oil seal (see "Replacing gearbox seals" in the subsection "Gearbox").
1. Remove the front wheel drive from the vehicle (see "Removal and installation front wheel drives" in the subsection "Front wheel drives").
2. To replace the inner constant velocity joint, clamp the drive shaft in a vice and remove the outer and inner clamps of the inner joint.
3. Slide the mudguard over the shaft and turn it inside out.
4. Using a drift, knock the inner joint off the shaft by applying force to the joint collar.
5. Note that there is a plastic plug installed on the inner end of the drive shaft.
6. Check the presence of grease in the new joint. It should contain 80 cm³ of SHRUS-4 grease. If you think there is not enough grease, add some — extra grease won't hurt.
7. When installing the hinge, tap it in with light blows of a hammer through a wooden spacer along the outer end of the shank along its axis until the hinge is fixed on the shaft. When installing the hinge, make sure that no dirt gets into it.
8. Install the mudguard onto the hinge housing and use a screwdriver to press the edge of the mudguard so that the air straightens the mudguard (equalize the pressure inside and outside the case).
9. When installing the inner joint cover, maintain the dimension from the end of the tailpiece to the small edge of the mudguard cover equal to 210 mm, and carefully tighten the clamps using special pliers.
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10. To replace the outer joint, remove its outer and inner clamps.
11. Slide the mudguard over the shaft and turn it inside out.
12. Using a punch, knock the outer CV joint off the shaft, applying force to the joint cage.
13. Install the outer joint in the same way as the inner joint. The difference is that 40 cm³ of SHRUS-4 grease must be put into the joint and there is no need to maintain the size when installing the mudguard.
