Flushing the cooling system

Seasoned motorists know that most of the road damage that may require costly repairs associated with the faults in the cooling system will result in overheating of the engine. Typically, the cooling system is remembered only upon the occurrence of critical situations. In the best case, car owners are trying to maintain a normal level of fluid in it, and if they measure and the density of the liquid, it is quite perfect. But the entire cooling system requires attention.

The Main causes of failure of the cooling system are:

- loss of tightness due to destruction of the seals in the water pump due to the presence in liquids of various particle;

- the deterioration of heat transfer due to contamination of the mixture with lime scale deposits and rust.

In the process of operation of any vehicle in that case, if the cooling system is filled with water, on the walls of the cooling jacket gradually formed scale, becoming an obstacle to efficient transfer of heat coming from the engine to the water through the pipes of the radiator. In addition to this, there is a clogging of the passage tubes that slow the circulation of coolant, which can serve as the most likely cause of severe overheating of the engine. Flushing the cooling system should be carried out twice a year, so its effectiveness is not reduced. Ways flushing, there are several. If we are dealing with a small scale deposition, the system can be flushed with plain water, while we should also flush the radiator and cooling jacket.

Flushing the engine cooling system

You have to remove the thermostat, then the pressure to send the opposite of normal circulation of the water in the radiator, entering it through the lower pipe, and removing through the top. In the cooling jacket of the engine water introduced through the upper pipe, and released through the bottom. Good results you can achieve with simultaneous input into the system the mixture of water with compressed air. Flushing the cooling system should be carried out until the dirty liquid will not cease to exit. If you have a large amount of limescale in the system, its removal is carried out using a large amount of water with the addition of different solutions. At the moment they can be called a huge amount.

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You Can use a solution which consists of 200 grams of bichromate in 10 liters of water that must be poured into the cooling system for 7-10 hours, and a solution consisting of 500-600 grams of inhibited hydrochloric acid in a mixture of 20 grams of hexamine per 10 liters of water should be poured for two hours. After the indicated time has passed, the engine needs to put on 10-20 minutes, then drain the solution. After this procedure, you must flush the cooling system with water 3-4 times. To neutralize the remnants of hydrochloric acid, you can pour the soda ash solution is based 700 grams per 10 liters of water. After the scum is softened, it can be removed by rinsing, as previously proposed.

Flushing the car cooling system operated by a non-freezing liquid is carried out after 2 years of operation or 60 thousand kilometers. This is done in the following way. First, the fluid must be drained using the drain holes in the lower radiator tank and the engine block, then you need to pour the water, start the engine until it is warmed up the lower radiator tank, and then drain the water when operating at idle and low speed engine. After stopping the engine it is cooled, then back fill with clean water, and again rinsed the cooling system. Then the water merges again with the running at idle, the engine. And after it has cooled completely, you pour fresh coolant.

As you can see, flushing the cooling system is quite simple, but requires owner attentiveness and timely.