Heart of your car - about engine

Dodane: 10-08-2016 10:38
Heart of your car - about engine oil for Porsche

Why choose an authorized repair service car?

Although most people decide to order auto repair shop in the ordinary, it is not missing and those who prefer to do the servicing of the vehicle at an authorized site. Why opt for the second option? Despite the fact that we have to expect a much higher repair costs, however, this choice is often a good solution to this situation due to the fact that such a service is often the only place where you can fix a new car. These services also provide genuine auto parts, which can be much more favorable for our car than the alternatives. Moreover, an authorized service center we can expect a professional car diagnosis at a very high level.


This oil film

In the crankcase of a vehicle engine, motor oil lubricates rotating or sliding surfaces between the crankshaft journal bearings (main bearings and big-end bearings), and rods connecting the pistons to the crankshaft. The oil collects in an oil pan, or sump, at the bottom of the crankcase. In some small engines such as lawn mower engines, dippers on the bottoms of connecting rods dip into the oil at the bottom and splash it around the crankcase as needed to lubricate parts inside. In modern vehicle engines, the oil pump takes oil from the oil pan and sends it through the oil filter into oil galleries, from which the oil lubricates the main bearings holding the crankshaft up at the main journals and camshaft bearings operating the valves. In typical modern vehicles, oil pressure-fed from the oil galleries to the main bearings enters holes in the main journals of the crankshaft. From these holes in the main journals, the oil moves through passageways inside the crankshaft to exit holes in the rod journals to lubricate the rod bearings and connecting rods. Some simpler designs relied on these rapidly moving parts to splash and lubricate the contacting surfaces between the piston rings and interior surfaces of the cylinders. However, in modern designs, there are also passageways through the rods which carry oil from the rod bearings to the rod-piston connections and lubricate the contacting surfaces between the piston rings and interior surfaces of the cylinders. This oil film also serves as a seal between the piston rings and cylinder walls to separate the combustion chamber in the cylinder head from the crankcase. The oil then drips back down into the oil pan.45

Motor oil may also serve as a cooling agent. In some constructions oil is sprayed through a nozzle inside the crankcase onto the piston to provide cooling of specific parts that undergo high temperature strain. On the other hand, the thermal capacity of the oil pool has to be filled, i.e. the oil has to reach its designed temperature range before it can protect the engine under high load. This typically takes longer than heating the main cooling agent ? water or mixtures thereof ? up to its operating temperature. In order to inform the driver about the oil temperature, some older and most high performance or racing engines feature an oil thermometer.

Due to its high viscosity, motor oil is not always the preferred oil for certain applications. Some applications make use of lighter products such as WD-40, when a lighter oil is desired, or honing oil if the desired viscosity needs to be mid-range.6

Źródło: https://en.wikipedia.org/wiki/Motor_oil


When the car requires a comprehensive service ...

When the car appears even a minor fault, not worth it lightly. Certainly not repair itself, and with the passage of time may adversely affect other systems in the car. As a result, instead of a short service and low cost of such delays can cause the car will require a complete overhaul. Of course, this involves an increase of expenditure on spare parts, but also negatively affects our security. If our car requires thorough maintenance is necessary to bring him to a mechanic with extensive experience, who enjoys a good reputation among satisfied customers. Such a professional will be able to find the best solution and will restore the car to its former efficiency.