2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Engine overheating is a nuisance that wastes time and money to fix this problem. A coolant leak is the simplest and most common cause.
It is necessary to check the fluid level in the system in a timely manner, if a shortage is detected, all joints should be inspected by going through the cooling system circuit.
The second reason is the failure of the thermostat, it may not allow hot liquid to pass into the radiator. If after 10 minutes of operation the radiator turns out to be cold, you need to remove the thermostat and put it in hot water (80 degrees), at this temperature it should open (the thermostat does not work, a replacement is needed).
The third reason is clogging of the cooling system or the radiator itself. This may be caused by scale build-up on the pipes (from using hard water containing various s alts in its composition) or foreign objects entering the system.
The formation of scale reduces the cooling of the engine, which in this case overheats, the viscosity of the oil decreases, which leads to poor lubrication of parts. Detonation begins, fuel consumption increases. Pour soft water (rain, distilled, from mountain rivers). Sea or unpaved - hard. To soften, add trisodium phosphate or soda ash. There are many products on the market to fix this problem.
If scale builds up, flush the entire system with any descaling agent.
It happens that the thermostat and coolant are normal, but the engine is warming up. In this case, it may be that the hose leading to the pump is not hermetically fixed (it is necessary to replace the clamp with a narrower one in order to more tightly press the hose to the fitting). This breakdown is typical for cars Moskvich 2140.
The Cossacks have poor cooling by oncoming air. In this case, install various deflectors, air intakes, fans.
In some machines, the very principle of cooling is based on the movement of the coolant in a large and small circle. While the engine is cold, the fluid circulates in a small circle. When warming up, the thermostat opens and circulation begins in the big one (through the radiator). The thermostat may not open, and liquid access to the large circle will be closed. Overheating of the VAZ 2108, 2109, 2199 engine can occur precisely for this reason. To check the operation of the thermostat, you need to warm up the engine to 90 degrees and touch the pipe leading to the radiator. If the thermostat is not working, the nozzle will be cold.
Engine overheating can occur from contamination of the outer surface of the cylinders. To clean them, you need to remove the carburetor and cut the casing that covers them.
Overheating may occurengine due to a malfunction of the water pump, failure of the drive (when the belt breaks).
This is a serious problem that can cause the engine to seize on the road. Cylinder heads will warp, deformation of parts will occur due to excess heat. If the engine overheats, the consequences can become irreversible as a result of ordinary carelessness. You should check the cooling system before the trip, not on the road.
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