Industry News

How to solve the engine tempering and blasting

Date: 2017-07-11   Page view: 27886

The small engine blast abnormal sound when it turns off,It is likely that your petrol engine has taken place blast phenomenon.

Another possible cause is the engine tempering, but the temper sound is relatively small, and is generally due to engine design and carburetor problems.

So, why the engine will produce tempering? If you encounter such a situation how to solve  themselves?


What is tempering and blasting?

Tempering means that the carburetor sounds when the engine is running or off, puffing, exploding.  

In general,In the cylinder,the piston after the work done, it should be discharged from the exhaust pipe after the exhaust gas, but because of a fault, the exhaust valve has been closed, the exhaust can not be discharged, or too late to discharge emissions.

Then the exhaust will be from the cylinder head of the individual tanks, and crankcase, as well as carburetor, throttle and other places to discharge, that is, we often say "pour", that engine tempering.


Blasting refers to the engine after the flame out of the silence inside the explosion. Is the mixture into the exhaust pipe after the exhaust in the Mars or in the exhaust pipe under high temperature and high pressure phenomenon, combustible mixture of rapid combustion, the formation of a high-pressure gas outward punch, resulting in blasting phenomenon (that is, in a limited space Internal explosion). It makes the engine fuel consumption increases, power down, and even make the exhaust pipe burst.


Note: the carburetor in the tempering and silencer blasting phenomenon will not damage the engine!

The cause of the tempering of the small engine and how to solve it?

Common causes of tempering:

♦ The engine speed reduce is too fast


♦ The ethanol content in gasoline is high


♦ Combustible mixture is too thin


♦ Exceeds the engine's normal operating temperature


♦ The carburetor itself is designed and may cause a temper (this can not be corrected)


Can be taken to temper the solution:

♦ Slowly lower engine speed

♦ Follow small engine fuel recommendations or switch to gasoline with low or low ethanol content


♦ Check or clean the carburetor for optimum performance


♦ Check the engine for ventilation and heat dissipation, eliminating external factors that may cause the engine to overheat.

What is the cause of the small engine and how to solve it?

Common causes of blasting:

♦ Turn off the engine at high speeds, causing the combustible mixture to ignite at a high temperature silencer


♦ Alcohol-containing gasoline is more likely to ignite and may cause blasting


♦ Carburetor mixture is too thick


♦ The type of muffler for small engines and the cause of the manufacturing process


♦ Anti-backflush solenoid valve is not working properly


Can take the blasting solution:

♦ Allow the engine to cool down at an appropriate speed (15-30 seconds)


♦ Use other petrol that does not contain ethanol or ethanol


♦ Check or clean the carburetor to obtain a suitable mixture


♦ For the updated design of the muffler and other devices, please contact the equipment manufacturer


♦ Check that the anti-burn solenoid valve is working properly