Before setting up the wheels you should to check your Car Owner's Manual for correct installation. This means the wheels should be installed with the required torque.
Incorrect wheel nuts or improperly tightened nuts can cause the wheel to become loose or come off. For the specified torque is typically used a torque wrench. The wheel nuts must be kept tightened to specification at all times.
To install the wheel properly you should:
- Clean any mud from the surface between the wheel and hub;
- Set the wheel on the axle and then tighten wheel nuts with your fingers;
- Using the wrench, tighten the nuts alternately, but not very strongly as it is shown below;
- Slowly lower the car to the ground contact;
- Using a torque wrench tighten all wheel nuts strongly in the specified order;
- Lower the car completely;
After the wheels are installed, you should retighten wheel nuts after the first 100km (60 miles) and check the nuts tightening when the vehicle has been driven for every 1,000 km (600 miles).
1. Do not use oil or grease on the wheel studs or nuts. This could cause the nuts to become loose.
2. Please, use this common tightening torque (ft-lb) recommended for thread diameter below as a reference only:
12mm = 70-80
14mm = 85-95
7/16" = 55-65
9/16" = 95-115
1/2" = 75-85
Wheels Vibration Problems
There are some common reasons of steering wheel vibration (but, it can be others):
- Tire is damaged;
- One or more lug nuts loose;
- Rim is damaged;
- Wheel is out of balance;
- Hub centric rings destroyed or missing;
- Uneven tread wear;
Do not ignore your steering wheel vibration, ask professional for inspection.
The tire wear is always irregular, because the load is different and depends on the position where you installed the tire (steer axle, drive axle or free rolling axle). To prevent abnormal vibrations, wearing and to ensure a longer life for your tires rotate tire and wheels periodically from one position to another as it is shown in the car tire rotation diagram below. Most car manufactures recommend rotate and balance auto tires every 7,500 miles (10,000 - 12,000 km, or every regular oil change).
Before installing the tires check them for unrelated objects.
The size of the tire for your car is determined by the manufacturer with all aspects of the operation, therefore you should not change their size, type, load and speed indexes when replacing the tires, without consulting with the expert.
You should to install the tires of the same type and size for all rims to proper steering control stability of the car.
The tire with a unidirectional tread pattern has to be set appropriately, as it is indicated by the arrow on the sidewall. It is not recommended to mount diagonal tires on the rear axle if on the front axle radial tires are installed.
Use the same type of valves for all wheels and install the new valve for each tire replaced.
To facilitate a good board fitting after tire was mounted; it should be inflated to 3.5 bar, and then deflated to the pressure level required.
Installation or replacement of the tires must be done only by professionals and with using proper equipment. Never include a Temporary Use Spare tire in the tire rotation!
Check regularly your tire-and-wheel balance and the vehicle alignment, as the most important factors having an effect on tire wear, fuel economy and safe driving.
The tire’s weight must be distributed equally around the rim’s circle. All heavy spots of the tire must be opposite-balanced by special lead weights to avoid intensive tire wearing at these spots and wheel vibration. You should always balance your tire-and-wheel assembly when:
- Tire and/or wheel have been replaced;
- Tires were rotated;
- Tire flat repaired;
- Wheels vibration problem;
When misalignment happens, tires do not run properly and as straight as they should be. Most of the tire experts recommend checking vehicle alignment:
- Every 10-15 thousand miles;
- At uneven tire wear;
- After wheels suspension repairing;
- If the vehicle takes the right or left, and the steering wheel changed his position when driving in a straight line;
- If the car does not keep the road when it hit the bumps;
We hope, these simple tips will help you to keep your tires alive for a long time and be safe when driving.