Hold the cardan shaft from turning with a band clamp, unscrew the mounting bolts (arrows, see fig. 10.5) and remove the universal joint flange from the flexible coupling. Fix the front section of the rear drive shaft to the vehicle body with a wire clamp.
Unscrew the fastening nuts of the CV joint of the rear section of the cardan shaft from the final drive flange (GP) rear axle (arrows, fig. 10.26). Install a screwdriver into the grooves and press the CV joint from the rear axle GP flange.
Fix the rear section of the shaft with a wire clamp to the vehicle body. Close the CV joint with a cover to protect it from contamination.
Attention! Do not allow the cardan shaft to fall, due to the possibility of damage, first of all, the cuff of the CV joint (arrow, see fig. 10.7).
Fix the central bearing with a support and unscrew the nuts securing the bearing of the intermediate support (arrow, see fig. 10.6) to the car body.
Sink the cardan shaft in the area of the support bearing (6, see fig. 10.23) down and pull it out of the centering element of the PK flange. Remove the propeller shaft from the car body.
The installation of the propeller shaft of the rear wheel drive should be carried out in the reverse order, while it is necessary.
The propeller shaft is balanced as an assembly and can only be replaced as a whole. Before installation, the assembly must be balanced and the condition of the hinges checked at the workshop.
Replenish grease type Olistamoly 2LN 584/LO in the cavity of the CV joint. Extend the CV joint to the stop (1, fig. 10.27).
Attention! It is strictly forbidden to push back, (towards the engine) SHRUS during assembly, because grease can squeeze out the o-ring and break the tightness of the CV joint.
Degrease the sealing surfaces of the CV joint and the flange of the GP drive gear. Replace seal (2) and put the cardan shaft with the CV joint extended on the flange of the drive gear of the GPU. Install new self-locking nuts.
Alternately tighten any two opposite nuts in order to evenly insert the CV joint into the flange of the main gear drive gear. Tighten these nuts to the torque given below. Tighten remaining nuts to torque:
- flat (M10) 64 Nm (6.4 kgf·m);
- corrugated (M8) 43 Nm (4.3 kgf·m);
- corrugated (M10) 70 Nm (7.0 kgf·m).
Check centering element (4, fig. 10.28), replace the damaged element. Lubricate the centering element with grease type «Molykote Longterm 2PLUS» or «Optimjl Olistamoly 2».
Tighten new intermediate support nuts to 21 Nm (2.1 kgf·m).
Tighten the new self-locking nuts of the bolts securing the flexible coupling to the cardan shaft and to the output flange of the PK to torque:
- M10 (8.8) 48 Nm (4.8 kgf·m);
- M10 (10.9) 64 Nm (6.4 kgf·m);
- M12 (10.9) 100 Nm (10.0 kgf·m).