Removing
Pic. 4.15. Front shock absorber components: 1 - bolt (anti-lock braking system wheel speed sensor); 2 - bolt (brake hose bracket); 3 - nut (Front stabilizer); 4 - bolt (lower shock absorber); 5 – dynamic damper; 6 - shock absorber fork; 7 - nut (upper shock absorber); 8 - front shock absorber and coil spring; 9 - piston rod nut; 10 - rubber support; 11 – compression stroke buffer; 12 - protective cover; 13 - cylindrical spring; 14 - front shock absorber
Components of a forward shock-absorber rack are shown on fig. 4.15.
Attention! Performing the following procedures without first removing the Anti-Lock Braking System Wheel Speed Sensor may cause an open circuit in the wiring harness if the harness is taut by mistake. Before performing the following operations, remove the anti-lock brake wheel speed sensor (from the side of the hub) and mount it in a suitable location where the sensor will not be damaged by mistake when performing maintenance.
Loosen the wheel speed sensor mounting bolt.
Loosen the brake hose bracket bolt.
Loosen the stabilizer bar nut and lower shock absorber bolt.
Remove the dynamic damper.
Loosen the damper fork bolt.
Loosen, but do not completely remove, the three nuts securing the top cover of the shock absorber strut.
Remove the shock absorber assembly and fix it on a special stand.
Cover the spring with a cloth and install special tools.
Pic. 4.16. Removing the damper rod nut
Compress the spring with the tool and unscrew the shock absorber rod nut (pic. 4.16).
Examination
Check the shock absorber for damage and oil leakage.
Check the rubber bush for signs of damage or wear.
Extend and retract the shock absorber rod at least three times. Verify that the drag force does not change and that there is no unusual noise.
If not, replace shock absorber.
Push in the damper rod and release it.
Pic. 4.17. Checking the free play of the shock absorber rod
Make sure the stem extends fully at normal speed (pic. 4.17).
Installation
Temporarily install the coil spring, boot, and rubber mount on the shock absorber so that the lower edge of the coil spring fits on the lug of the lower spring cup.
Pic. 4.18. Shock absorber component markings
Mark the coil spring, protective boot and rubber mount for proper installation as shown in fig. 4.18.
Align the marks on the coil spring and the protective boot. Wrap the coil spring and protective cover with a piece of cloth, then install the special tools.
Pic. 4.19. Coil spring compression
Compress the coil spring using special tools (pic. 4.19).
Install the damper so that the lower end of the coil spring fits on the lug of the lower spring cup.
Make sure that the marks on the shock absorber and the protective cover match.
Install the rubber support and piston rod nut, then remove the special tools.
Piston rod nut tightening torque: 39.2 - 52.9 Nm.
Pic. 4.20. Installation of threaded rods
Install the threaded studs at a 27-33°angle to the stabilizer link (center line), towards the inside of the car (pic. 4.20).
Pic. 4.21. Installing the damper fork
Install the shock absorber fork and align it with the marks along with the dynamic damper (pic. 4.21).
Tighten the fork bolt.
Install the rest of the components in the reverse order of removal.