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 The failure of the cooling water in the radiator to leak through the radiator, water pump, cylinder liner, and other components of a diesel engine is known as leakage. The exterior leaking of a diesel engine and the internal leakage of a diesel engine are two different types of leakage. Body or cylinder head cracks and leaks, water tank cracks, and leaks, body, and water tank blisters leaks, water plugging water leaks, and water tank bolts are all common causes of external leakage. water leaks can be used to tighten bolts, and welding It is possible to solve the procedure of mending and applying sealant. Diesel Engine Internal Water Leakage The Cylinder Liner Seal Leaks The cylinder liner of a diesel engine has two or three sealing rings. The following are the causes of the leak and possible solutions: ① The sealing ring's diameter is significantly different or has other faults, causing the sealing ring to leak water. Replacement of qualified sealing rings is required. ② Be carefu...

  The Shutdown Solenoid Valve is not Closed Tightly Reason: The shutdown solenoid valve is not closed tightly, which is one of the key reasons for the diesel engine's trouble installation. The power to the solenoid of the solenoid valve is cut off when the key is switched off, the solenoid valve should be closed, and the fuel passage going to the cylinder head is sealed; if the shutdown solenoid valve is not tightly closed, there will be fuel leakage. The diesel engine does not stall because a small amount of gasoline continues to flow to the cylinder head oil channels. The shutdown solenoid valve is not tightly closed for a variety of reasons, including processing issues and fuel cleanliness. Impurities in the gasoline will invade the solenoid valve, pad the valve plate, or make its movement stuck, resulting in a loose closing; impurities may also directly infiltrate during the maintenance process without paying attention to the cleanliness of the oil circuit. When the solenoid va...

 The speed of the engine, the load carried by the engine, the temperature of the engine, and the working circulating oil pipe of the engine are all factors that influence the incidence of anomalous noise faults in Komatsu engines. As a result, you can narrow down the origin of abnormal noise in a Komatsu engine by looking at the location of the abnormal noise. Landtopmall is a store that integrates various engine parts such as excavators and diesel engines. There are many high-quality parts in our store, such as gasket sets for Yanmar 4tnv98t , main bearings 17311-22310 , etc. If you need it, welcome come and see. The Cause of Abnormal Noise of Komatsu Engine "Relationship Between Engine Speed" The engine makes an unnatural noise when it is idle or running at a low pace. The gap between the piston and the cylinder wall of the Komatsu engine is too large, or the piston pin is assembled too tightly, or the gap between the tappet and the Komatsu engine's guiding hole is too ...

 Many flaws with the vehicle became apparent as the seasons changed. How to adjust the valve is the most often asked question. So, today, let's talk about the valve. What is Engine Valve Clearance? The valve will expand as the temperature rises when the engine is operating. If the valve and its transmission parts have no or a small gap in the cold state, the thermal expansion of the valve and its transmission parts will inevitably cause the valve to not close tightly in the hot state, causing the engine to be in the compression stroke and leakage during the work process, reducing power and making it difficult to start in severe cases. To avoid this problem, space is normally left in the valve and its transmission mechanism when the engine is cold constructed to compensate for the valve's expansion after heating. The gate gap is the name given to this space. In our Landtopmall, there is a Yanmar 4tnv88 valve clearance . Why Should the Valve Clearance be Adjusted? Because the va...

 Regular excavator maintenance, as we all know, is designed to reduce machine failures, extend machine life, reduce machine downtime, increase job efficiency, and lower operating expenses. But do you truly know how to keep it up to date? Do you know what the most common misunderstandings about excavators are? Let's look at some of the common misunderstandings concerning excavators in the following information. Do Not Check the Plunger Stroke Allowance When fixing and debugging the fuel injection pump, check the stroke margin first to see if the fuel injection pump can still be changed. The following approaches should be employed during the inspection, depending on the varied structures of the fuel injection pump: Rotate the camshaft, push the plunger to the top dead center, remove the oil outlet valve and valve seat, and use a depth vernier to measure the distance. After the plunger has been pushed to the top dead center, pull up the plunger spring seat with a screwdriver and lift ...

 A pair of movable fittings, the valve, and the valve guide. The valve's job is to manage the opening and closing of the intake and exhaust passageways in order to accomplish the ventilation task; the valve guide controls the valve's movement, prevents the valve head from skewing, and ensures that the valve and the valve seat work together closely. The matching gap widens due to frequent movement and friction between the valve and the valve guide, causing the valve stem to wobble in the guide, generating partial valve headwear and causing the valve to close loosely. At the same time, an excessive fit-gap will not only cause poor heat dissipation of the valve but also accelerate the ablation of the valve; another hazard is that the oil can enter the cylinder from the valve guide along the valve stem, resulting in increased oil consumption, exhaust smoke, accumulation The increase in carbon accelerates the wear of diesel engine cylinder liners and pistons. Common Defects 1. Incre...

 The difference between these two kinds of abnormal sounds is still very big. The most obvious difference is that the engine sound is in the middle and lower part of the engine, while the valve sound is in the upper part of the engine. When there is a lack of car oil or no car oil, the engine crankshaft will abruptly report dead while the car engine is operating, indicating that the car engine is being pulled; when the engine has car oil, the car engine is being pulled. If the car engine is running for a long time, it will make a rattling sound that will blend in with the sound of the oil, and the larger the accelerator pedal, the louder it will be. The engine has two types of bearing pads: crank bearing pads and connecting rod bearing pads. The main bearing of the crankshaft, often known as "huge tile," is the scientific name for the crankshaft bush. The crankcase is characterized by a heavy "boring" metal percussion sound. The sound is rhythmic and gets louder as ...