1990-1997 of release
Repair and car operation
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. Engines
+ 3.2. Diesel engines
+ 3.3. Removal and a partition of engines
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. An exhaust system
+ 8. Systems of start, ignition
+ 9. Transmission
+ 10. Brake system
+ 11. Suspension brackets, a steering
+ 12. A body
+ 13. An electric equipment
- 14. A good advice
14.1.1. Changed numbers
14.1.2. Purchase of the old car or a mysterious set of figures and letters
14.2. Durability of the car
14.3. About parallelism of bridges of the car and the trailer
14.4. Preparation of the car for winter
14.5. It is not got – a good advice
14.6. From change of places "composed" varies nothing?
14.7. Visit to car-care centre
+ 14.8. The engine
+ 14.9. The conditioner
+ 14.11. Three in one – or how to save the catalyst
+ 14.12. The accumulator
14.13. The generator
14.15. "Automatic machine"
+ 14.16. Brake system
- 14.17. Wheels and tyres
14.17.2. Shinnye whims
While in service the car there is a deterioration of a protector of a tyre cover which can be divided on normal and abnormal. Deterioration is considered normal if the small resource of a protector is caused not by presence of any mechanical defects in the given vehicle, and grows out of service conditions.
Normal deterioration can be caused:
– A condition, a profile and road planning (on a mountain streamer deterioration twice above, than in normal conditions);
– In the speed and rigidity of a manner of driving;
– An ambient temperature and a climate;
– Capacity of the engine;
– Compatibility of type of the tyre with service conditions.
Abnormally fast deterioration is caused by defect or deviations from norm in a vehicle suspension bracket, system of a steering or brakes. This type of deterioration has an inclination passing on the one hand another. Abnormally fast deterioration is shown in a kind соскобленности which is looked through within all protector, and also in shape more or less appreciable wavy deterioration appearing on one of end faces протекторного of the block. It is caused by that wheel moving does not coincide with a plane of its rotation. If there was a non-uniform deterioration of the tyre, it is necessary to check up the following:
– Pressure in tyres;
– Correctness of installation of wheels;
– Adjustment, including the back bridge;
– To check up a mechanical condition of the car: bearings, plugs, springs, the ends of routeing draughts, pins.
The tyre with unilateral cone-shaped deterioration on an equal flat surface slides with withdrawal as it happens when on a plane the cone slides. Only symmetry of tyres on the right and at the left (let even strongly worn out) relieves of such withdrawal. In what an error? That replacement of one wheel by another was made without any system.
If wheels on the car did not interchange the position, the deterioration picture remains approximately symmetric concerning a median plane of a body, and the car is quite comprehensible heads.
The majority of automobile instructions contains instructions on in what terms and in what order it is necessary to interchange the position of wheels that their deterioration remained uniform enough. Tyres with the directed drawing of a protector (having on боковине to an arrow "a rotation direction") demand still большего attention. Here the replacement scheme under the instruction is absolutely unacceptable – it is possible to interchange the position of only forward and back wheels of one party (left, right). Otherwise tyres it should in addition перебортировать – who begins to do it?
As you can see, even use of identical tyres not always guarantees normal behaviour of the car on road. And different in a standard size, a design, protector drawing and so on? In these cases you can face various "unexpectedness".
We already repeatedly wrote about the factors having adverse influence on a tyre cover, and also how to prolong a life to the tyres. Now possibility personally to be convinced of it is given to you.
Run on the lowered wheel
Non-uniform deterioration (unilateral deterioration)
Non-uniform deterioration (deterioration a stain)
Non-uniform deterioration (edge deterioration)
Cut протекторной parts
Cut-otsloenie протекторной parts
Cuts from a disk
Attrition from a disk