Shock absorber strut — removal, installation and overhaul (Peugeot Eurovans 806)

Removal

Attention! The tilt position of the shock absorbers determines the camber angle of the wheels. For this reason, the upper shock absorber mounts cannot be swapped. There is a reference mark on the upper supports of the shock absorber struts (see illustration 2.0). If you look in the direction of movement(letter C with an arrow), then the upper support, designated in the illustration by the letter A, belongs to the left post, and the support designated by the letter B belongs to the right one.



1. Apply the parking brake and engage first gear.

2. Loosen the wheel nuts.

3. Loosen the hub nuts. This requires a replacement socket head.

4. Place the front of the car on jack stands so that the wheels hang freely under their own weight. Now you can remove the wheels and completely unscrew the hub nut.



5. Remove the brake pads (see the relevant chapter) and unscrew the caliper bolts. Secure the caliper itself to a wire

6. Disconnect the wire from the ABS wheel speed sensor.

7. Loosen the nuts of both bolts connecting the shock absorber strut and steering knuckle and press the steering knuckle down to release the strut. At the same time, secure the wheel drive axle shaft so that it does not fall or become disconnected from the gearbox (see illustration).



8. Remove the bolts securing the upper shock absorber strut support (see illustration). Ask an assistant to hold the stand so that it does not fall. After this, the rack must be removed by pushing it forward.

Please note: The shock absorber strut can be removed together with the wheel axle cable. In this case, it is necessary to disconnect the steering knuckle from the wishbone (see below).

Installation

The installation of the shock absorber is carried out in the reverse order of removal. We would like to remind you once again that in order to maintain wheel alignment, you must not swap the upper strut mounts.

If the shock absorber strut was removed together with the drive axle shaft, first replace the oil seal in the hole for the axle shaft end in the gearbox.

9. Insert the axle shaft end into the hole on the gearbox and push it all the way into the gearbox.

10. Place the shock absorber strut in the desired mounting position and secure its upper support to the mudguard by screwing in two mounting bolts. Tighten the bolts to a torque of 45 Nm.

If the wheel drive axle shaft was not removed together with the strut, then insert its tailpiece into the steering knuckle and hub (see the relevant chapter). After this, place the shock absorber strut in the required mounting position and secure it to the mudguard as indicated above.

11. Secure the lower part of the shock absorber to the steering knuckle and insert both mounting bolts.

12. Screw on the nuts and tighten them to a torque of 110 Nm.

13. Remove the caliper secured to the body with wire and connect it to the steering knuckle. Tighten both bolts.

14. Install the wheel and secure it with bolts.

15. Lower the vehicle and tighten the wheel bolts to 100 Nm.



16. Tighten the hub nut.

Bulkhead

The main work performed on the shock absorber strut is the replacement of the coil spring or the upper support. If the shock absorber is damaged, the entire strut must be replaced (see illustration 2.0a).



In order to disassemble the shock absorber strut, it is necessary to compress the spring in order to release the corresponding parts of the strut from the load. Illustration 2.0b shows the spring compression clamps used in workshops. If you don't have such clamps, you can use clamps with cam locks, which are identical in use to clamps.





17. Clamp the shock absorber strut in a vice and install the spring remover tool (see illustration).



18. Compress the shock absorber coil spring completely by tightening the clamp nuts until the spring ends are clear of the upper and lower cups.

19. Using a suitable socket head, unscrew the shock absorber rod nut, located in the middle of the upper support of the strut. Hold the shock absorber rod itself with a second socket wrench to prevent it from turning.

20. Remove all parts located above the upper end of the spring.

21. Remove the spring from the shock absorber together with the retaining clamp. Be careful not to damage the shock absorber rod. After this, remove all parts located on the shock absorber. The protective cuff is simply placed on the shock absorber rod and is easily removed. There is a rubber compression buffer under the cuff.

22. Check the condition of all parts and replace them if necessary. The height of the front of the car above the road surface may change due to the shock absorber spring weakening during long-term operation of the car. When purchasing a new spring, be sure to include the vehicle identification number and year of manufacture.



The assembly procedure for the shock absorber strut is as follows.

23. Install the compression buffer and protective cuff onto the shock absorber rod.

24. Clamp the stand vertically in a vice.

25. Place the spring clamped in the clamp onto the shock absorber rod. The lower end of the spring should fit into the seat.

26. Install all the parts located under the upper support of the strut, and place the upper support itself so that the upper end of the spring takes its seat.

27. Secure the shock absorber rod with a new nut and tighten it to a torque of 90 Nm. The shock absorber rod must be held to prevent it from turning while tightening the nut.

28. Release the clamp that holds the spring in a compressed position. Release the spring slowly, making sure that the ends of the spring remain in their seats.

29. Loosen the vice and remove the stand.