When you travel down the road in a straight line, without exerting any force on the steering wheel, the power steering system remains idle.
Yet the moment you turn your steering wheel, the system must instantly respond. The component known as the rotary valve has the important job of sensing any force applied to your steering wheel. Furthermore, the valve also directs the flow of hydraulic fluid to the appropriate side of the power steering system, depending on the direction of your turn. The rotary valve monitors steering position by means of an internal part called the torsion bar.
This thin metal transmits any torque exerted on the steering wheel to the rotary valve. The torsion bar not only tells the valve the direction of the turn but also how hard you are turning.
As the rotary valve ages, it may develop problems that affect the performance of your system. At first, you may notice that your system has begun leaking power steering fluid. As the internal damage grows worse, you will find it more and more difficult to accurately steer your car. Fluid won't flow to the correct side of the system nor with the appropriate amount of pressure. For more information about what it takes to keep your power steering system running strong, please contact Detroit's auto pros at Redford Auto Repair.
Detroit- W. Garden City- Ford Rd. Livona- 5 Mile Rd. Redford- Telegraph Rd. Redford- W. Redford- W 7 Mile Rd. Southfield- W. Taylor- Telegraph Rd. Westland- Wayne Rd. Woodhaven - West Rd. Blog Coupons. Providing Affordable Car Repairs Since As the worm rotates, the balls are rolled along the grooves and the nut is moved up or down on the worm.
The nut, being meshed with the sector, turns the sector shaft and so moves the pitman arm. The steering box is known as a recirculating-ball type because the balls can pass out of the nut at each end, but are directed back into the nut by ball-return guides.
In this way, the balls are recirculated. The steering column normally bolts to the underside of the dash. The column projects through the engine bay firewall and fastens to the steering rack or box. Bearings fit between the steering shaft and column.
They permit the shaft to rotate freely. The steering wheel is locked to the shaft by splines. A large nut holds the steering wheel on the shaft splines. Steering Damper The steering damper is basically a shock absorber mounted to the steering of a vehicle. It is mostly found on commercial vehicles with linkage steering systems, but can also be found on large cars.
The purpose of the steering damper is to remove sudden movements of the wheels caused by uneven road surfaces. Steering Knuckle The steering knuckle connects the front, and in some cases the rear, wheels to the vehicles.
It does this by supporting the CV joint or stub axle. In the case of a stub axle, the stub axle bolts to the steering knuckle and the wheel hub is mounted onto the stub axle. For a CV joint the steering knuckle has a hole through the centre where the CV joint is supported by bearings. The wheel hub then connects to the CV joint.
The steering knuckle then connects to the vehicles suspension and steering, hence connecting it to the vehicle itself. Steering Rack The steering rack is the main control rod of the rack and pinion steering system. The steering rack runs through the steering rack housing and is supported in the housing by bushings. The steering rack has a row of gear teeth where the pinion gear meets the steering rack. This connection causes the steering rack to move from side to side.
Connected to the ends of the steering rack are the steering racks ends , which transfer the linear motion to the wheels. For vehicles which have power steering, a piston arrangement will also be part of the steering rack. Steering Rack Ends Steering rack ends are ball socket on one end and a threaded rod at the other end. The end with the ball socket attaches to the end of the steering rack after it exits the steering rack housing.
This ball socket and the connection to the steering rack is protected by a rubber garter boot that attaches to the steering rack housing and the steering rack end. The other end of the steering rack end connects to a tie rod end. Steering Rack Housing The steering rack housing supports the components of a rack and pinion steering system.
The steering rack runs horizontal through the centre of the steering rack housing and is supported by bushes. The Input shaft, that is connected to the steering column, enters the steering rack housing at right angles to the steering rack.
As the input shaft has rotational motion its is supported by bearings in the steering rack housing. As the pinion gear is attached to the end of the input shaft, the steering rack housing is designed so the pinion gear and the gear teeth on the steering rack mesh easy. In vehicles with power steering the steering rack housing also houses the hydraulic valving for the power steering. Steering Rods Steering rods are steel bars that connect the different parts of the steering system.
There are two ways that the steering rods connect to the other components. First is by screwing onto the end of the rod, a locking nut is normally used to keep the component from unscrewing. The second way rods connect to the other components is through a eye in the rod.
Here the pin of a ball socket passes through the eye and a nut is fitted on the pin to keep it in place. Listed below are some of the names of the steering rods. This type of steering system is starting to appear on the Infiniti, Renault, Honda, Nissan, Mazda and other marques to give drivers new heights of driveability and responsiveness and keep us safer on the roads. Post-race wheel check. Read more. The complete front end assembly check. How often to check steering and suspension systems?
Bump steer: everything you need to know. Discover the what, why and how of car alignment. Bad driving habits that you need to break. Please review and accept our Privacy Policy before signing up for the newsletter. Find My Part. Products Light Vehicles Commercial Vehicles. Why MOOG. Where to buy. About Us. Contact Us. Select Language. Message Regarding Your Privacy. I accept Submit Submit. The function of a steering system When you rotate the steering wheel, the car responds.
The popular rack and pinion steering system In most cars, small trucks and SUVs on the road today, there is a rack and pinion steering system.
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