The Changan Yidong XT front suspension is cast iron or stamped

1. The maintenance of the suspension system is mainly to check the installation and function of each component, and the components are required not to have defects such as looseness, deformation, excessive wear, excessive clearance, and weakened elasticity; In particular, the deformation of the suspension arm and the wear of the bushing and ball joint will make the wheel alignment inaccurate and prone to failure. The cost of maintenance varies greatly depending on the model, region, and level of repair shops, etc., and the specific situation shall prevail.

Second, the fault phenomenon.

1. The connecting pin (rod) of the shock absorber falls off or the rubber bushing (cushion) is worn and cracked.

2. The oil volume of the shock absorber is insufficient or there is air.

3. Poor sealing of shock absorber valves.

4. The piston and cylinder barrel of the shock absorber are worn excessively and loose.

3. Fault diagnosis and elimination.

1. Check whether the connecting pins (rods), rubber liners and connecting holes of the shock absorber are damaged, falling off or cracked, and if so, they should be repaired or replaced in time.

2. Check whether the shock absorber has oil leakage and obsolete oil leakage traces.

3. Press the bumper of the car hard, the hand is loose, if the body can have 2 or 3 jumps, it means that the shock absorber is good, otherwise, the fault is inside the shock absorber, and it should be removed for maintenance.

4. Wheel alignment: check the wheel alignment to make the positioning parameters within the specified range.

3. Miscellaneous. 1. Suspension springs.

Spring wear check: cracks, wear or damage.

Elasticity check. Spring installation: the installation position and direction are correct, and the clearance meets the regulations.

2. The vehicle is overloaded or overspeeding on uneven roads, or the speed is too fast when turning, and the load suddenly increases.

When the vehicle is used under the condition of long-term overload or uneven loading, the load of the suspension spring is not released according to the regulations when the vehicle is sealed.

If the maintenance is not timely, the lubrication between the suspension springs is poor or there is no lubrication at all, which reduces the relative displacement capacity between the suspension spring plates, resulting in a decrease in bearing capacity and breakage.

The U-bolt is loose, and the load is concentrated on the top few pieces of the leaf spring, which are prone to breakage.

The curvature of the new suspension spring blades replaced is different from the curvature of the original.

The car has too much emergency braking (especially in the case of good front braking and poor rear braking), or when going downhill with full load, the emergency braking is used to move the car load forward, and the front suspension spring is suddenly subjected to additional load, resulting in the suspension spring.

One or two pieces are broken.

3. Suspension rods.

Pry the fixing frames of each suspension arm, support bar, stabilizer bar and control bar, check the clearance in all directions, and re-tighten or transverse the bushing if it is too large.

For the strut suspension, you can use the hand to push and pull the top of the wheel to check whether the upper bracket is loose or damaged.

Check the suspension arms for deformation.

Check the installation connections.

Check the gap of the ball joint joint, if the gap is too large and the wear is serious, it should be replaced.

4. a shock absorber.

Check that the shock absorber should be free of oil leakage, deformation and damage, otherwise it should be replaced.

Check the installation of the shock absorber.

Check the working condition of the shock absorber: press the body with your hands.

Hello, this one is cast iron, it is welded up thank you.

1.Check the front suspension and front brake discs. 2.It shouldn't be a big deal. On the road, sometimes I get to a taxi for years.

The light weight of aluminum and the heavy weight of cast iron definitely have an impact on fuel consumption, but the hardness of the two is about the same, and many luxury cars now choose aluminum front overhang.

Generally, it is aluminum, and there are also cylinder blocks that are aluminum, and the cylinder head is iron.

Iron, I hope it can help you and I wish you a happy life! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】