The Yuchai 4110 engine consumes a lot of water, which may be due to the high water temperature.
Remove the thermostat and the heavy car's water temperature can reach up to 50 degrees. With the thermostat on and the car empty at 70 kilometers per hour, the water temperature can reach 98 degrees. The upper part of the main water tank is hot and the lower part is cold. The upper and lower temperatures of the main water tank are basically the same. Likewise, Yuchai heavy duty engines are suitable for buses, trucks, construction machinery, etc. etc.
When another bulldozer started from cold, there was a popping sound and a puff of white smoke came out first. After the black smoke came out, the engine caught fire: this also happened when the accelerator was pressed. suddenly increased. The knocking noise, abnormal sound disappears oncethe accelerator stabilized; If the throttle is increased repeatedly and suddenly, there will always be a cylinder knocking noise. When the cylinder was disconnected for inspection, it was found that the abnormal noise was coming from cylinder VI. I suspect the injector needle is stuck. Disassembled and inspected, the result was normal.
When the VI cylinder head was removed, the cylinder gasket was found to be burning with black smoke. It turned out that the cylinder head bolts were very tight with a torque of 250 Nm, but the cylinder head and. The cylinder seal was not tight. The reason was that there was a water plug on the body which is higher than the upper plane of the body. Replace the cylinder gasket and make the height of the water cap lower than the upper plane of the engine body. The abnormal noise will disappear after reinstallation and the engine will work normally.
Remarks
1. A rectifier failure will not only result in no output voltage from the generator set, but also an undisplayed output frequency. Scientific and technological articles, diesel generator. At this point, the rectifier assembly must be replaced to quickly eliminate the fault. It should be noted that you must choose a matching model.
2. When the generator coil is burned out, there will be obvious glue smell. Use a multimeter to verify that the winding terminal resistance is zero and that the winding has been sintered and caused a short circuit or that the infinite resistance winding has been burned out. At this point, the coil winding needs to be repaired or replaced. The generator must be replaced directly.
3. If the output voltmeter indicates that the voltage is normal, but the electrical equipment is not receiving power, the generator output switch Dongguan is defective. After replacing the switch, the problem may occur. be eliminated.
Air Cooled Generator Set: Diesel engine is a generator for horizontal bar engine or parallel bar engine. One or more large fans are used to force exhaust air. to the generator body to dissipate heat. Generally, gasoline generators and small diesel generators are used:
Air-cooled generators must be installed in open cabins, which causes greater noise;
Air-cooled generator sets have a simple structure and low failure rate, good starting performance, less air required, low fan power consumption, low fuel consumption, no risk of freezing, overheating and boiling, easy maintenance;
The air-cooled generator set is suitable for tray or enrights where water is scarce or cold, there is no need to consider issues such as adding water, boiling point, freezing, etc. Due to the limitations of thermal load and mechanical load, the power is generally relatively low. The "Deutz" air-cooled unit does better.
2. Water-cooled generator set: Diesel engines are mainly four-cylinder, six-cylinder, twelve-cylinder and other large units. Water circulates between the inside and outside of the body, and heat is generated. the inside of the body is evacuated by the water tank and the fan. Water-cooled generator sets are mostly large-scale generator sets:
Water-cooled generator setsThe engine unit has a complex structure, is relatively difficult to manufacture, and has many environmental requirements. When used on trays, it is necessaryarea to consider reducing energy consumption and lowering the boiling point of cooling water. added to improve boiling point and freezing point; < /p>
The cooling effect of water-cooled generator sets is ideal for engines with the same technical parameters, water cooling is small, light and high. in energy density and has better heat transfer performance;
High-power generator sets are generally water-cooled generator sets. There are many brands of water-cooled generators, such as Mercedes-Benz. generator set, Cummins generator set, Perkins generator set, Yuchai generator set, Weichai generator set, etc.