Fig. 13.9. Front suspension wishbone: 1 – front bushing, located horizontally and with positive track adjustment; 2 – rear bushing, located vertically; 3 – outer ball joint
Both bushings and the ball joint of the front wishbone of the independent suspension do not require maintenance (Fig. 13.9). The outer ball joint is installed in a plastic insert filled with grease. Despite this, it is necessary to constantly check the play of the wishbones of the independent suspension with a tire iron, since the dirt and moisture that penetrates leave their traces and acts as an abrasive paste, causing the ball joints to break and the bushings to become rusty.
SEQUENCE OF WORKS
1. Turn the steering wheel completely.
2. Check the ball joints on the left and right for damage. Use a crowbar to check the play of the joint.
3. Check the condition of both bushings in the same way. Remember that the bushings have a certain elasticity. If the mount moves freely, without significant resistance, then the bushings are worn out and need to be replaced.
Experienced mechanics with the necessary equipment and tools can perform the replacement themselves. However, you should not undertake repairs if the work is not limited to replacing the bushing or ball joint: in this case, remove the wishbone and the front suspension beam. After the repair, visit a car repair shop for optical measurement of the wheel alignment angles of your car. The service center will perform this work quickly and efficiently.