Maintenance method Because the intercooler is installed in the front, the heat sink channel of the intercooler is often blocked by leaves and mud (hydraulic oil overflow in the steering oil tank), so that the heat dissipation of the intercooler is blocked, so it should be cleaned regularly. The method of cleaning is to use a water gun with not too high pressure to wash slowly from top to bottom or from bottom to bottom at an Angle perpendicular to the plane of the intercooler, but it must not be tilted to prevent damage to the intercooler.
1, external cleaning (car cleaning method)
Because the intercooler device is in the front, the intercooler heat sink channel is often blocked by leaves, sludge (hydraulic oil spilled in the steering tank), etc., so that the heat dissipation of the intercooler is blocked, so it should be cleaned regularly. The cleaning method is to use a water gun with not too high pressure to vertical Angle of the intercooler plane, top-down or bottom-up slow flushing, but must not be inclined to prevent damage to the intercooler.
2, internal cleaning, inspection (disassembly cleaning method)
The internal pipeline of the intercooler is often accompanied by mud, gum and other dirt, which not only Narrows the air flow channel, but also reduces the cooling heat exchange capacity, so it is also necessary to protect and clean. Generally every year or engine overhaul, welding repair tank together, should be cleaned and inspected inside the intercooler.
Cleaning method: Add an aqueous solution containing 2% soda ash (temperature should be 70-80 ° C) to the intercooler, fill it up, wait 15 minutes to see if the intercooler has leakage. If any, it should be dismantled, welded and repaired (same as repairing the water tank); If there is no leakage, shake back and forth, repeat several times, pour out the lotion, and then fill the clean water solution containing 2% soda ash for washing, until more clean, and then add clean hot water (80-90 ℃) to clean until the discharged water is clean. If the outside of the intercooler is stained with oil, it can also be cleaned with alkali water. The method is: soak the oil in lye and remove it with a brush until it is clean. After cleaning, use compressed air to dry the water in the intercooler or natural cool dry, or do not connect the intercooler to the engine when the device is cooled, start the engine, and then connect the engine intake pipe when there is no water at the outlet of the intercooler. If it is found that the core of the intercooler is seriously dirty, the air filter and the intake pipes should be carefully checked where there is a leak, and the fault should be removed.
The biggest problem with turbochargers is that the distance between the intake of fresh air and the high-temperature exhaust is very close, and the temperature of the incoming fresh air will rise a lot after being compressed, so even if the supercharged engine does not have the effect of high exhaust temperature, it also needs to go through the intercooler to cool the intake. The compressed air temperature will increase, the simplest example is the air pump to inflate the tire, do not believe that friends can touch the air pump is inflating, will know how terrible the heat accumulated by air compression. In addition, we can know through chemical and physical knowledge that the lower the temperature of the air, the higher the oxygen content, some people may ask: what does this matter? You know, fuel incineration needs oxygen in the air, the more oxygen can let more fuel burn, and then the more power. Friends who want to know more can refer to the relevant introduction in the inspiratory system. The intercooler is an efficient heat sink whose main effect is to cool fresh air before it enters the engine. You can imagine that the intercooler is located in front of the cooling water tank, so it can be directly hit by the cold air blowing from the head on, and also sits behind the air filter, turbocharger or mechanical supercharger. In practice, most of the cars are equipped with intercoolers located in front of the cooling water tank, and the cooling effect is indeed better than some overhead layout intercoolers, but this will more or less affect the airflow blown to the cooling water tank, so in some extreme cases, such as on the track, it is necessary to upgrade the cooling water tank to control the engine temperature.
Intercooler is an important part of turbocharged engine, its function is to improve the efficiency of engine air exchange. In general, the intercooler takes about two years to clean. There are two ways to clean the intercooler, one is to use a high-pressure water gun for cleaning, and the other is to use a chemical way for cleaning. High-pressure water gun cleaning can be carried out directly, while chemical cleaning requires the intercooler to be disassembled and then soaked in a chemical solution. The intercooler is installed between the engine turbo and the engine intake manifold and is required regardless of the type of turbo used in the vehicle. It should be noted that the intercooler is not equipped on the naturally aspirated engine. In order to ensure the normal operation of the intercooler, regular cleaning is very necessary.
The frequency of cleaning the intercooler is determined according to the use of the vehicle. If the vehicle is frequently driven in a dusty environment during use, or if it is driven in bad weather conditions for a long time, the intercooler may accumulate dust and dirt faster. Therefore, it is recommended to increase the frequency of cleaning in these cases. In addition, if the surface of the intercooler is found to have abnormal noise or high temperature, it also needs to be cleaned in time. Cleaning the intercooler can improve the performance of the engine and extend the service life of the engine.
The air-cooled intercooler is installed with the radiator of the water tank, installed in front of the engine, and cooled by the suction fan and the surface wind of the car. If the cooling of the intercooler is poor, it will lead to insufficient engine power and increased fuel consumption. Therefore, the intercooler should be checked and maintained regularly, the main contents are:
● External cleaning
Because the intercooler is installed in the front, the intercooler heat sink channel is often blocked by leaves, mud (hydraulic oil overflow in the steering tank), so that the heat dissipation of the intercooler is blocked, so it should be cleaned regularly. The method of cleaning is to use a water gun with not too high pressure to vertical Angle of the intercooler plane, top-down or bottom-up slow flushing, but must not be inclined to prevent damage to the intercooler.
● Internal cleaning and inspection
The internal pipeline of the intercooler is often accompanied by mud, gum and other dirt, which not only Narrows the air flow channel, but also reduces the cooling heat exchange capacity, so it must also be maintained and cleaned. In general, every year or when the engine is overhauled and the tank is welded, the interior of the intercooler should be cleaned and inspected.
Cleaning method: Add an aqueous solution containing 2% soda ash (temperature should be 70-80 ° C) to the intercooler, fill it up, wait 15 minutes to see if the intercooler has leakage. If any, it should be dismantled, welded and repaired (same as repairing the water tank); If there is no leakage, shake back and forth, repeat several times, pour out the lotion, and then fill in a clean water solution containing 2% soda ash for washing until it is relatively clean, and then add clean hot water (80-90 ° C) to clean until the released water is clean. If the outside of the intercooler is stained with oil, it can also be cleaned with alkali water. The method is: soak the oil in lye and remove it with a brush until it is clean. After cleaning, dry the water in the intercooler with compressed air or dry it naturally, or start the engine without connecting the intercooler and the engine connection pipe when installing the intercooler, and then connect the engine intake pipe when there is no water at the air outlet of the intercooler. If it is found that the core of the intercooler is seriously dirty, the air filter and the intake pipes should be carefully checked where there is a leak, and the fault should be removed.
The intercooler is installed in front of the engine, and is cooled by the suction fan and the surface air of the car. If the intercooler is poorly cooled, it will lead to insufficient engine power and increased fuel consumption. Therefore, the intercooler should be checked and maintained regularly.
External cleaning: Because the intercooler is installed in the front, the heat sink channel of the intercooler is often blocked by mud (overflow hydraulic oil in the steering oil tank), so that the heat dissipation of the intercooler is blocked, so it should be cleaned regularly. Wash method Use a water gun with a low pressure to wash slowly from top to bottom or bottom up at an Angle perpendicular to the plane of the intercooler, but must not be tilted to prevent damage to the intercooler.
If there is oil outside the intercooler, it can be cleaned with alkali water. Warm reminder: After cleaning the intercooler must be completely dried or blow-dry before installation.
Internal cleaning: The interior of the intercooler is usually attached to stolen goods such as sludge, so it also needs to be cleaned and maintained, generally cleaned once a year, or when repairing the engine or water tank. The cleaning method is to rinse with alkali water.