Inventory of common automotive pseudo failure

There are some errors in vehicle maintenance. These errors are gradually formed in the low level of car manufacturers, car repair process behind the lack of testing means era. In recent years, with the rapid development of science and technology, with the widespread use of new materials, new technologies, new processes, the design and manufacturing of the car greatly improve the level of car trouble without disassembly detection and diagnosis of technical maturity, car repair process is constantly update. Awareness, however, lags behind the development of science and technology there is a great impact on residual errors in vehicle maintenance
Bearing sliding bearing must be scraped. That the engine crankshaft bearings, rod bearings new ones bearing must be scraped, cut bearing can not guarantee a good contact surface, and even scraping bush as a leading technology in the auto repair. Hyundai Motor, especially small engines, its crankshaft bearings and rod bearings, bearing wear alloy coating is very thin, and never allow scraping only the size-matching. If there is no song of the proper size bearings available when necessary, the method of grinding the crankshaft hole basis, in order to achieve an appropriate fit clearance.
2 engine water temperature afraid the high not afraid. The water temperature is high and do everything possible to find out the reasons, and the low water temperature that is normal. In fact, modern automobile engine water temperature is low causing great harm to make the mixture does not burn fully power reduction, increased fuel consumption and result in poor lubrication can also cause excessive emissions.
3. Strong and big point of valve clearance than the small point. Valve clearance, the valve lift Hyo open enough so that inadequate or poor exhaust into the gas, precisely reduces engine power.