Car Engine: Parts, Work, Problems. Part 2
So the most common problems with car engine:
Pistons. In the previous article we mentioned about the rings separating the combustion chamber from the crankcase. From time to time these rings tend to wear out. As the result of this fuel, air and oil can get mixed and oil becomes diluted. Diluted oil loses its lubricating abilities and can not protect the engine properly. So engine’s parts get worn earlier. Also worn rings alow oil get into the combustion chambers which results in oil burning. So, grayish white smoke coming out of your tail pipe shows that the rings are worn down and need to be replaced. But if the smoke disappears after start-up you should pay your attention to the valvetrain.
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Unfortunately, nothing lasts forever and once any car even the best one starts having problems. However, while some cars may provide you with few hundred thousands miles of trouble-free driving, others cause headaches from the very beginning. Why is it so?
Speaking about the performance the engine tuning is meant. The aim of engine tuning is aimed to increase the torque, the power output, and the engine responsiveness, besides the engine economy and reliability. In order to make the engine tuning, the engine itself should be strong, sometimes even much stronger compared with the standard one, and it should sustain extra power. To make your car’s engine more competitive and reliable, first make sure that the suspension, the transmission, and the brakes are compatible with the torque and the power output. The most common wish of drivers is increasing the engine power output.
Diesel cars seem to enjoy a new wave of popularity in the USA. There are a number of reasons for that, the most important of which are the rising prices of gas. Owners of diesel cars swear that they have more fuel savings and better mileage than owners of gas-powered cars. Are there any technological reasons which make a diesel engine be more efficient over a gasoline one? Let us have a look at the diesel engine, examine how it functions, and compare it with a more conventional gasoline engine. 
