The loss of power in a car can be associated with various factors, since all systems in it are interconnected. Therefore, it is necessary to find out why the engine does not develop speed immediately after it was noticed that pressing the accelerator pedal does not give the desired result.

The main reasons for such an event can be either in the poor quality of the fuel system or due to mechanical damage to parts.

Content

• 1 The most common causes of power reduction
• 2 All the fault of the fuel mixture
• 3 Lean mixture
• 4 Conclusion

The most common causes of power reduction

Early Ignition Diagram

1. Most often found in vehicles with reduced power is the wrong ignition setting. It works earlier when the piston has not reached the upper position. In this case, the energy of the explosion is consumed inefficiently, reducing the efficiency of the motor.
2. The second option is the wrong ignition settings - later. In such a situation, the mixture does not have time to completely burn, and the exhaust valves are already opening. Part of the power goes into the pipe.
3. Problems with the vacuum regulator ignition. A damaged diaphragm reduces its performance or simply stops working. In this case, the drop in the power characteristics of the car is also noticeable.
4. The culprit may be a centrifugal ignition timing regulator. Increased speeds extend the angle of advance, but when “jamming” weights such a process does not occur. The angle remains the same, and gas overruns begin. The reason lies in the stretching of the spring.
5. Landing valves should ensure the tightness of the combustion chamber. If not, then there will be a loss in power. This parameter is checked using the gauge and valve clearance settings. A larger gap reduces the tightness of the chamber, and a smaller one contributes to the burning of valves.
6. You can add to the list of popular reasons piston ring wear. For this reason, the level of compression in the combustion chamber also decreases, resulting in a drop in power.

All the fault of the fuel mixture

The reason why the engine is not gaining momentum, if the ignition control is correct, and the car is not that old, may be due to insufficient filling of the cylinders with the fuel mixture. The culprit in this situation would be the throttle. You will need to check the operation of its drive. The condition of the air filter can affect the formation of the fuel mixture. It is advisable to clean it or install a new one.

Ignition setting

The main negatives affecting the formation of the mixture include the following factors:

• excess carbon in the block cylinders;
• a large amount of deposited resins and coke in the inlet;
• octane fuel does not match the settings of the motor;
• The needle valve in the float chamber does not function.

See also: How to change the alternator belt on your own

Lean mixture

The fuel mixture may be too lean to gain power.

Carburetor flushing

There are several ways to quickly eliminate this problem.

1. Undesirable air leakage. May occur due to untwisting the carburetor mounts or wear of the gasket. If there is a suspicion of this fault, you can confirm or deny this. using soap suds. Joints are smeared, then the presence of a void or depression in the place of the “leakage” is checked.
2. Condensate freezing in the power system. This leads to blocking of channels. It is solved with the help of channel purging with a conventional compressor or pump. It is also necessary Check and flush the nozzles. If purging does not help, then cleaning with a thin copper wire is allowed.
3. The fuel pump may be clogged. Also needed check the wear of his lever. Cleaning or replacement of non-working parts is also carried out. Special attention should be paid to the air holes.
4. Damage to the fuel pump diaphragm can lead to the fact that the engine is not gaining momentum. Along with this, it is necessary to check the screen filter and the operability of the pump valves. Flushing or installing new pump elements will help.

Conclusion

Most problems affecting the set of car power, you can decide yourself without recourse to expensive professionals. However, if there is no confidence in the quality result of our own work, then it is better to turn to professionals.