oil temp and pressure gauge for air cooled engine

• 2023-01-04

The normal operating temperature of automobile engines varies slightly due to different engine structures and types. The normal operating temperature of an ordinary four stroke water-cooled naturally aspirated engine is about 80~90 ℃; The turbocharged gasoline engine, which is now widely used, has a relatively high degree of enhancement, so its normal operating temperature is slightly higher, generally between 950 C and 105 ° C;

The normal operating temperature of highly intensified turbocharged diesel engines used in trucks is generally between 85 ° C and 95 ° C. Some diesel engines with thermal management systems can operate at 105 ° C. Many drivers who drive such vehicles for the first time think that the engine is boiling when they look at the water temperature gauge; If the engine is air-cooled, the temperature will be higher, generally between 120 ℃ and 150 ℃, which will vary slightly depending on the model. For example, the temperature of air-cooled gasoline engines for small displacement motorcycles can be as high as 150 ℃, while the temperature of air-cooled diesel engines for trucks is generally kept at about 120 ℃. The temperature of the engine oil will be a little higher than the water temperature, generally between 100~110 ℃. In order to maintain the temperature of the oil

An oil radiator is installed on the surface to cool the oil and prevent the oil temperature from being too high.In order to maintain the engine at normal operating temperature, the engine is equipped with a complete cooling system and a cooling intensity regulating device. During use, attention should be paid to keeping the cooling system intact and functioning normally. In particular, there are a lot of them. The operating temperature of the engine is more than 100 ° C, and if ordinary water is used, it will boil and lose its cooling capacity. Therefore, qualified coolant must be used.

The engine operates at normal operating temperature, and the fit clearance between all parts is in the best state. The temperature of the combustion chamber is about 500~600 ° C. In this state, the fuel combustion state is the best, and the thermal efficiency and all aspects of the engine performance are in the best state. If temperature, If it is too low, the viscosity of the lubricating oil will increase and the engine wear will increase. Some data show that 80% of the engine wear is started at low temperature When the engine is running, the combustion state of the fuel is not good, and the thermal efficiency of the engine is low. If the engine temperature is too high, the viscosity of the lubricating oil will drop, the lubrication will be poor, and the clearance between the parts will be reduced or even disappear, eventually causing serious mechanical failures such as cylinder scuffing and bushing melting.