Signs of backlash
If while driving on your car, you began to point out such unpleasant phenomena as the knocks, excessive vibration, accidental deviation from the path, this may be the result of backlash in the steering. According to the rules of the road, the total clearance vehicle in good condition shall not exceed 10 degrees. But smaller values create some inconvenience and discomfort. Even the smallest backlash tends to grow into a large. Agree, not on a virtually flat road constantly turn the steering wheel left and right. With a large backlash is already called to catch the road."
The reasons for the backlash and detection methods
The main causes of looseness in the steering can be divided into four. They arise as a result of wear of parts during prolonged operation of the vehicle. For example, over time, the joints steering rods of the front wheels are formed and increases the gaps. Their presence and size can be defined visually or tactilely, probing fingers of the details that these joints are connected. In this case, someone needs to dramatically spin the wheel left, then right. Both parts should move synchronously. Alone test, moving hands to the tie rod in the longitudinal direction. There is no backlash if it moves with the bipod. Even with a small clearance hinge needs to be replaced.
The second reason is the increased wear or misalignment. engages the roller and "worm". With a sharp turning steering in the steering mechanism is bugged knock. Also, the defect is detected when shaking the hands of the Pitman arm of the steering gear. Action: adjust or replace parts.
The knock and squeak when turning the wheels, and with rocking of the pendulum arm up and down talking about the wear on the bushings or axle that the idler arm. Try to tighten the nut on the axle. Worn parts require replacement.
Finally, the fourth reason – the loose bracket of an idler arm or Carter. You just need to tighten the appropriate nuts and bolts.
It remains to add that with proper vehicle operation and care of the steering components: periodic lubrication, timely detection and elimination of emerging backlash – all of the mechanisms will last a long time and will not require contingencies to replace them.