Progress has not stood still for a long time: the former low-speed, but noisy diesel engines began to work quieter, and their power, and, accordingly, their dynamics increased. Moreover, a noticeable breakthrough in this direction happened when turbocharging began to be installed on diesel power plants. Today, many cars equipped with diesel engines have a turbine in their design. However, not all owners of cars with such units know how to properly operate a turbodiesel engine so that it lasts as long as possible. We have prepared eight simple tips that will help current or potential owners of machines with similar units to avoid miscalculations in the operation of the turbine.
Council number 1. Keep the oil level under control.
All engines in general, and the turbocharged diesel engine we are considering in particular, are not recommended for oil starvation. After all, oil in such a unit plays a special role, lubricating the plain and rolling bearings of the turbocharger. When the engine oil level drops, the bearings do not receive the right amount of lubrication, which leads to their rapid wear and failure.
Therefore, we recommend that you check the oil level in the crankcase as often as possible and, if a deficiency of lubrication is detected, you need to immediately top up the amount. In addition, it is necessary to find out the reason why the oil level in the system drops (this may be contamination or leakage of the oil system, failure of the oil pump, etc.) and eliminate it immediately.
Council number 2. Use only high quality engine oil.
Once you have purchased a car with a turbodiesel engine, do not skimp on refueling it with high-quality and manufacturer-recommended engine oil. Here, as in the well-known saying: save on fish, get a bad yushka. Above, we have already indicated what role engine oil plays for a turbine, so pouring any kind of oil into the engine means dooming the turbocharger of the power plant of your car to a slow death in advance. It is important to remember that the oils recommended for turbocharged units are different in composition from conventional oils due to the fact that when working in a turbine they are exposed to much higher temperatures and loads than in an atmospheric engine. Another important aspect: it is highly not recommended to mix different ratios, for example, add 5w-30 oil to the engine if 10w-40 has already been filled there.
Council number 3. Monitor the quality of diesel fuel.
A diesel engine turbine is sensitive not only to the quality of the engine oil, but also to the quality of the fuel you feed your car with. When using low quality fuel, clogging of the engine fuel system is likely, which, in turn, affects the loss of engine power, which is why, in order to fill this gap in speed, it is forced to work at the power limit. And this can lead to a reduction in its service life.
Council number 4. Avoid overgassing when starting a turbocharged engine.
This advice should be followed, first of all, by those owners of cars who do not have a Start & Stop engine start / stop system installed. The fact is that when starting the engine, the oil channels are not yet filled with engine oil, when you press the accelerator pedal, you give a load to the turbine, which rotates with little or no oil, as a result of which its components (bronze-graphite sliding and rolling bearings) wear out quickly, which eventually leads to failure of the turbocharger.
Therefore, we strongly recommend that you apply gas smoothly, and for some time (within 5 minutes maximum) after starting, let the engine idle, and then start moving at low speeds, gradually increasing the load. Let's make a reservation that this is important for engines that are not equipped with the Start & Stop system.
Council number 5. Keep the speed at medium speed while driving.
The engine turbine is a unit that constantly operates at high loads, so it is impossible to drive a car with such a unit for a long time at low revs. In general, it is recommended to let the engine turbine run at extremely high speed several times a week: in this way, you will activate the cleaning process of the turbocharger boost system, which will later help extend the life of the unit. It is important to avoid "twisting" the turbine, that is, a long drive at high speeds. At the same time, the turbocharger rotor experiences increased loads, which leads to an imbalance in its operation and, as a result, failure of its components.
Therefore, when driving a car with this type of engine, it is best to stick to medium speeds.
Council number 6. Do not turn off the engine immediately after stopping the vehicle.
This advice is especially important for motorists whose turbodiesel engines are not equipped with a Start & Stop system. The fact is that when the engine stops immediately, the turbine impellers still continue to rotate, but the oil that lubricates them is no longer enough, which leads to overheating of the turbocharger components (rotor and bearings). And this, in turn, leads to increased wear of these parts of the turbine.
Therefore, after stopping, let the engine idle for a short (no more than 5 minutes) time. During this time, the turbine will cool down and can be deactivated.
Council number 7. Avoid prolonged idling of the engine.
For a turbocharged engine, idling for 20-30 minutes is like death. The fact is that with this mode of engine operation, coking (in other words, clogging) of the turbine, namely the oil outlet tube, the drive for changing the geometry of the turbine, can occur. Also, during prolonged idling, engine oil can be sucked into the engine cylinders, which can lead to failure of the components of the cylinder-piston group.
If you still keep the engine idling for a long time, then we advise you to keep the crankshaft speed at 1200-1600 rpm.
Tip #8. Perform vehicle maintenance on time.
Stick to the manufacturer's recommended timing and filters, both oil and air. Remember that a turbocharged engine tends to have shorter service intervals than a naturally aspirated engine, as the turbine operates at higher loads than a conventional diesel unit and therefore needs fresh oil and filters more often.
Following these simple tips will save car owners from costly turbine repairs.
Features of the operation of diesel engines in winter are due to the presence of frost, in which the fuel behaves capriciously, which is why some parts malfunction. The reason is that diesel fuel at low temperatures has a very detrimental effect on the engine itself and fuel equipment, because it thickens. This article describes what features a diesel engine has and how to operate it in winter.
Features of the operation of diesel engines - the main whims
The main advantage in a diesel engine is its fuel efficiency. It is carried out due to the high pressure inside the combustion chamber, which is not the case with a gasoline engine, in which ignition occurs due to the supply of a spark using a spark plug. Also, the difference between these engines is that air is supplied to the gasoline engine separately from the fuel, and the fuel-air mixture enters the diesel engine. Another advantage is the durability of the diesel. The high torque that the engine generates makes it possible for the car to work in difficult conditions, which is why diesel is used in trucks and SUVs.
The main disadvantage of all diesel cars is that they need proper operation of the diesel engine, because it is very capricious and the fuel requirements are very high, especially in winter. Diesel fuel contains a substance such as paraffin, and at positive temperatures this does not affect the functioning of the machine, but when it starts to get colder, the fuel becomes cloudy, and the filters become clogged with paraffin threads. As a result, we cannot start the car.
The weak point is fuel equipment, and its minus is the price of spare parts and repairs. Due to low-quality fuel, the injection pump (high pressure fuel pump) and injectors mainly suffer.
Rules for the operation of diesel engines - without which a car cannot cope in winter?
For those who have recently joined the ranks of diesel car owners, it is important to immediately decide how to properly operate a diesel engine. First of all, you need to pay attention to the condition and quality. It is worth filling in only the oils recommended by the manufacturer, and do it as often as possible, for example, every 8-9 thousand kilometers. Turbines, which are now installed in many diesel engines, are especially sensitive to oil. It is also worth after the trip to let the turbine cool down, for this it is necessary that the engine idles for about two minutes. And it is better to set a timer that will turn off the engine at a certain time.
The rules for the operation of diesel engines also include careful maintenance of fuel equipment, since the cost of high-pressure fuel pumps is high. To avoid damage to these components and assemblies in the car, you should change the fuel filter more often, as well as drain the water from the sediment filter. It is worth monitoring the quality of fuel and trying to refuel at proven gas stations. Do not use a diesel for aggressive driving, this engine does not like it when there is a gear change at high speeds. Switching to the next gear should be done at medium or slightly lower speeds.
The operation of a diesel engine in winter is difficult at a temperature of minus 25 degrees Celsius. During this period, it is imperative to use winter or arctic diesel fuel.. In winter fuel, the interval of use is allowed from 0 degrees to minus 25 ° C, and in the second - up to minus 35 ° C. Our recommendations for diesel engine operation in winter are aimed at improving the response of the car to your requirements.
In order for the car to be in service all year round, it should be placed in a warm garage. In this case, the engine start will be at a high level, because the paraffin contained in the fuel will not crystallize. During this coldest period, you should more carefully monitor the fuel equipment, avoid contamination of the main filters. It is also worth changing the engine oil in a timely manner according to the coming season (by the winter, we drain the summer oil and fill the engine with winter oil). Listening or not is your choice, but with good care, the motor will last you longer.
Since diesel contaminates the oil in the lubrication system faster than a gasoline engine, most car manufacturers require more frequent oil and filter changes.Special diesel oils are widely available today and, judging by the reviews, are quite effective. However, any high-quality carbureted engine oil will also work for a diesel, as long as it is changed at regular intervals.
Read the label on the can, where the manufacturer usually gives instructions for diesels. If you do not find anything on this label, then look at the label on the container in which the jars were packed.
For engines with an overhead camshaft, the toothed belt must be replaced at the indicated intervals. Otherwise, it is possible that the piston will hit the valves when the belt suddenly breaks. Eliminating the consequences of the latter will require considerable financial costs from you. In practice, there have already been cases of belt breaks with a range of up to 48 thousand km, but this happened as a result of oil or water getting on them due to depressurization of the lubrication and cooling systems, respectively.
However, if you decide to drive without changing the belt after a run of 58 thousand km, then your unwillingness to take the time to change the belt in a timely manner can turn out to be much more time and money for you in the future.
To replace the fuel filter, buy the best one available to you. Some filters may look good on the outside, but "poorly perform their direct duties."
Don't forget to also change the O-ring on the filter housing. We also note that on a diesel engine it is equally difficult to prevent both fuel leakage and air infiltration into the fuel system, which greatly disrupt engine operation.
If air enters the fuel lines, it may be necessary to remove it from there through a special valve using a small hand pump, usually mounted for this purpose on the high pressure fuel pump.
Many modern diesel engines have self-bleeding air supply systems. You just need to spin the engine with a starter, and the air will be removed.
It is difficult to prevent moisture from condensing in the fuel filter, so for some diesels, a warning light is provided on the instrument panel to indicate the presence of water in the fuel system.
Usually, when changing the oil, it is only necessary to check the condition of the filter. However, if the vehicle is used in difficult conditions, such as high humidity and large differences between day and night temperatures, check the condition of the filters more often.
All diesels smoke in the cold, but this should not be excessive. One of the most common reasons for this is a failure in the injection timing of the high pressure pump, which is easily corrected by re-adjusting the injection timing according to the marks on the crankshaft and pump.
This work is very similar to adjusting the initial ignition timing on a gasoline engine. The operation can be done with the engine not running, but it is better to purchase for this purpose a special lamp for setting the injection timing on diesel engines, which is fastened with a clip on the fuel supply pipe of the nozzle and flashes under the action of the pushes of the fuel passing through the pipe.
Another reason is fuel leakage through injectors with a loosely closed fuel supply channel, which can lead to overflow of the cylinder with fuel and, as a result, to excessive smoking during start-up.
Other than a general cleaning of the injectors and replacing worn out ones after about 110 thousand km, there is little that can be done at home to check their operation. Is it possible to remove them and give them to check on some control equipment.
New injectors are not cheap, but you can save a lot of money by going to a diesel repair shop and having your injectors calibrated for a very reasonable price. The price for the service depends on the location of the station and the availability of spare parts stores around it.
However, you can extend the life of your injectors by keeping the diesel intake air and fuel filters clean, and thereby counteract injector fouling. For these purposes, special cleaners should be periodically poured into the fuel tank in a small amount.
If you monitor the high pressure fuel pump, it will function for a long time and work properly. However, we want to warn you that replacing it is a rather expensive undertaking.
Poor starting and low throttle response of a diesel engine can be caused by many things: poor quality spark plugs, clogged fuel line channels leading to a drop in fuel supply pressure, malfunctioning fuel lines, and even improper installation of injectors.
It is easy to identify poorly performing spark plugs by how long the preheat indicator light does not go out.
Talk to diesel car owners and you will see that none of them want to think about driving a gasoline car again. Perhaps your turn has come, if the diesel fully meets your needs.
In Russia, diesel cars have been sold for a long time. Their popularity is growing due to economical fuel consumption. Diesel engines are considered unpretentious and reliable, so many car owners do not worry too much about their condition. Much more often they check the suspension. But everything depends on the motor: safety, driving performance, and fuel consumption.
Any competent specialist knows that a short diagnosis of diesel engines at a good car service will prevent dangerous breakdowns. This service is inexpensive, but its importance should not be underestimated. Every engine has parts that wear out over time. You can quickly replace them. But if you ignore these measures, then such treatment of the motor can turn out to be deplorable.
Diesel engine: subtleties of care
Experts advise owners of diesel cars to carefully monitor the quality of fuel. It is advisable to refuel only at certified gas stations. It's no secret that a diesel engine needs more serious maintenance than its gasoline counterpart. This is especially noticeable in winter, when, due to negative temperatures, the diesel engine becomes denser and problems with starting may occur.
It is best to choose a good auto repair shop and drive there regularly so that knowledgeable mechanics monitor the condition of your engine and carefully replace worn parts.
Pay special attention to choosing an auto parts store. You should not buy Chinese spare parts from unknown manufacturers, even if the seller convinces you that they are "as good as original ones, but much cheaper." It is better to choose a store that works directly with trusted suppliers. In the absence of intermediaries, the cost of branded spare parts will be acceptable.
For each spare part, the seller must issue a guarantee from the manufacturer. The same applies to filters, which in a diesel engine need to be changed more often than in a gasoline one. Only in this case, you can safely drive tens of thousands of kilometers without fear that the new spare part will suddenly fail. With proper care, your diesel car will delight you with excellent driving performance.
Since diesel contaminates the oil in the lubrication system faster than gasoline
engine, most car manufacturers provide more frequent
oil and filter change.
Special diesel oils are widely available today and, judging by the reviews, are quite
Effective. However, any high quality carburetor engine oil
engines are also suitable for a diesel engine, if only it is changed through certain
intervals. Read the label on the can, where the manufacturer usually gives instructions on
regarding diesels. If you do not find anything on this label, then look at the label on
the container in which the jars were packed.
For engines with an overhead camshaft, the toothed belt must be replaced after
specified intervals. Otherwise, the collision of the piston with
valves when the belt suddenly breaks. Elimination of the consequences of the latter
will require a lot of money from you. In practice, there have already been cases of breakage
belts with a range of up to 48 thousand km, but this happened as a result of getting on them
oil or water due to depressurization of the lubrication and cooling systems, respectively.
However, if you decide to drive without changing the belt, after a run of 58 thousand km, then your
unwillingness to spend time on a timely replacement of the belt can turn around for you
much more time and money in the future.
To replace the fuel filter, buy the best one available to you. Some
filters may look good on the outside, but "bad to perform their direct
Do not forget to also change the O-ring on the filter housing.
We also note that on a diesel engine it is equally difficult to prevent both fuel leakage and
air leaks into the fuel system, which greatly disrupt the operation of the engine.
If air enters the fuel lines, it may need to be removed from there.
through a special valve using a small hand pump, usually mounted
for this purpose on the high pressure fuel pump. Many modern diesels
have power supply systems that are self-removing with air. You just need to turn the engine
starter and the air will be expelled.
It is difficult to avoid moisture condensation in the fuel filter, so
for some diesel engines, a signal lamp is provided on the instrument panel,
indicating the presence of water in the fuel system.
Usually, when changing the oil, it is only necessary to check the condition of the filter. However, in
when the vehicle is used in difficult conditions such as high humidity
and large differences between day and night temperatures, check the condition
filters should be done more often.
All diesels smoke in the cold, but this should not be excessive. One of the most
common reasons for this is a failure in the moment of fuel supply by the pump
high pressure, which is easily eliminated by re-adjusting the torque
injection on the marks on the crankshaft and pump. This work is very reminiscent of
adjustment of the initial ignition timing on a gasoline engine. Operation
can be done on a non-running engine, but it is better to purchase for these
purposes a special lamp for setting the injection timing on diesel engines, which is attached
clamp on the fuel supply pipe of the injector and flares up under the action of jolts
fuel passing through the tube.
Another reason is fuel leakage through injectors with loose seals.
fuel supply channel, which can lead to overflow of the cylinder with fuel and,
as a result, to excessive smoke at start-up. In addition to general cleaning of nozzles and
replacement of worn ones with a run of about 110 thousand km, little can be done even in
at home to check their work. Unless you take them off and check them out
on any control equipment.
New nozzles are not cheap, but you can save a lot of money by contacting
diesel repair station and calibrate the injectors to
acceptable price. The price of the service depends on the location of the station and the availability of
parts stores.
However, you can extend the life of your injectors by keeping the
diesel intake air and fuel filters, and thereby counteract
nozzle contamination. For these purposes, periodically pour into the fuel tank
a small amount of special cleaners.
If you monitor the high pressure fuel pump, it will last a long time and work properly
function. However, we want to warn you that replacing it is a rather expensive undertaking.
Poor starting and low throttle response of a diesel engine can be caused by many things:
low-quality starting plugs, clogging of fuel channels
lines, leading to a drop in fuel supply pressure, a malfunction
fuel lines and even improper installation of nozzles. Define bad
working spark plugs easily by how long the control light does not go out
preheating.
Talk to the owners of diesel cars, and you will see that none of them even think about
wants to get behind the wheel of a petrol car again. Perhaps it has come
your turn, if the diesel fully meets your needs.
