What is the internal problem of the abnormal noise of the diesel generator valve?

The abnormal noise of the diesel generator is one of the symptoms of the malfunction. Today, Hansa continues to talk about abnormal noise with everyone. The generator valve abnormal noise corresponds to which internal problems.
(1) The abnormal sound of exhaust valve leakage can be heard at the muffler of the exhaust pipe, such as the “click” sound when the tire is seriously leaking. Valve leakage can be heard at the upper air filter of the carburetor, and its sound is like a "whistle" sound when a young child whistles. The reason is that the working face of the valve and the seat ring is seriously worn or ablated. Grooves and spots appear and cannot be tightly closed. Some are because the valve stem and the catheter gap is too large or the valve stem is bent, so that the valve head can not be centered and skewed, resulting in leakage. If the elasticity of the valve spring is weakened or broken, the valve cannot be closely fitted to the working surface of the seat ring, which may also cause air leakage. From the aspect of assembly, if the gap between the valve stem and the catheter is too small, the thermal expansion of the valve stem is stuck during operation, or the valve clearance is adjusted too small, the valve stem is extended by heat and the valve is opened by the tappet or rocker arm. The valve will not completely close and leak.
(2) The abnormal sound when the valve spring breaks varies depending on the valve placement method. After the side-mounted valve spring is broken, a "click" sound is emitted during operation, and the valve chamber cover can be heard more clearly if it is removed. After the overhead valve spring breaks, the valve automatically sinks, colliding with the piston, and a "dangdang" knock. If the latter fails to extinguish in time, it will cause top pistons, broken links, and even more serious losses.
(3) Excessive valve carbon deposit can also cause abnormal noise, because of excessive carbon deposition, carbon layer is fiery, piston temperature is high, the clearance between piston ring groove and piston pin hole increases, thus giving off a kind of “喋喋” Abnormal sound. This fault is often accompanied by an organic temperature that is too high, the engine is not easily turned off, or it cannot be turned off. The reason for this is that the proportion of oil in the mixed oil exceeds the standard or that a large amount of oil in the sump penetrates into the combustion chamber. The specific reasons should be further identified and eliminated.
In addition, Hansa would like to remind everyone that in some cases, abnormal noises occur because people do not clean the diesel generators. Therefore, in routine maintenance, do not neglect the corners of the generators for cleaning details.

53cm Nonwoven Wallpaper

53Cm Nonwoven Wallpaper,Home Decor Nonwoven Wallpaper,European Retro Wallpaper,Waterproof Non-Woven Wallpaper

JIANGSU ARTSTYLE DECORATION MATERIALS CO..LTD , https://www.jsadpvcwallpaper.com