Micro pump for oil change with clean hands: testing it in action. All about the pump for pumping oil from the engine: do it yourself Pump for pumping oil from the engine through the dipstick

Ka every car owner who at least occasionally opens the hood of his iron horse faced his planned maintenance, and the most pragmatic wondered why such an uncomplicated procedure as changing the engine oil costs as much as 500 rubles (on average). After all, for this all that is needed, raise the car on a lift, unscrew the drain bolt, change the sealing ring and oil filter, return the car to the ground and fill it with fresh oil. All this can be done by yourself, but in most cases there is no equipped place for this.

In my case, I change the oil every 5000 kilometers and, given the fact that I quite often travel long distances, I have to carry out this operation every six weeks. And with the help of arithmetic, you can calculate that for a year I give 4 thousand rubles to someone in the pocket.

And now there was a solution to the problem, and this solution was this little black and yellow little device.

Let's start in order.

After a short wandering around "Ali" I came across a product of interest to me, without hesitation and not really choosing a seller, I ordered a pump for pumping oil from the engine.

After about 3 weeks of tracking the movement of my order, I discovered that my order had arrived and was at the pick-up point of some transport company. I immediately had a doubt and a question arose, why my order did not go to the Russian mail and do I need to pay extra for courier delivery... But after I called this transport company and clarified everything, all doubts disappeared and was pleasantly surprised, since I don't need to pay extra for delivery, and moreover, my order will be delivered home and handed over to me.

After receiving the order, it was immediately unpacked, and a slightly tattered cardboard package appeared to my eyes. On the box were images of the device itself, its characteristics and methods of use were indicated, all the inscriptions, as always, are on English language... I want to note that although the box was shaken by fate, everything that was in it was intact.

The box itself contained:

Soft transparent silicone hose for draining the pumped-out oil;

Rigid plastic translucent hose, by means of which the oil is pumped out directly from the engine crankcase;

The device itself is in a plastic bag with wires for connecting to the car battery;

Small bag with 2 clamps to securely fix the hoses to the device;

Instructions in English (which in most cases no one even opens).

The pump itself has a sticker indicating the direction of movement of the pumped-out liquid and the time of its continuous operation. On the back there is an on and off button. Soft inserts are fitted at the bottom to reduce vibration. The case itself is made quite well, does not play or creak.

The pump runs on battery, to which it connects with the included crocodiles of red and black colors (tap to "+", black to "-"). The pump inlet and outlet are made of aluminum and are sealed with rubber plugs.

The assembly is very simple and fast.

A solid translucent hose is connected to a fitting that sucks in waste oil, and a soft hose is connected to the opposite. After the hoses are put on, they are secured with clamps. The whole device is ready to use.

After checking the pump in action, I was pleased with it. This little stray pretty quickly pumped out all the oil from the engine crankcase, never "stalling".

The big advantage of using this device is that you do not need to spend money on services, you can do everything yourself, in a short period of time.

There is only one question left, how to change the oil filter without removing the engine protection.

Your conditions

The oil in the engine loses its properties over time, so it is necessary every 10,000-15,000 km of run. The easiest way to do this is in a car service, but you can also save money by doing the work yourself. To the happy owners of a garage with a viewing hole, in order to drain the oil, you just need to unscrew the drain plug in the engine sump. Anyone who does not have access to such a pit can use a pump to pump oil through the dipstick hole.

We note right away: such a device will help you out only if you can reach the oil filter, the replacement of which is necessary when filling with new oil, from above. If you can replace the filter in your car only from the bottom, the pump for pumping out the oil will not make your job much easier. After all, you still have to crawl under the car.

Before starting work

Secondly, the electric pump does not run dry, so you need to remove the plugs on the holes for the tubes and pour 40-50 ml of oil into the device using a syringe.

Third, the dipstick tube is 6 mm in diameter, while the dipstick tube may be smaller on some machines. Simply put, not every engine will be able to connect an electric pump. Among them, for example, a 1.8-liter engine, on which we originally wanted to carry out all the work.

Paradoxically, thanks to this, our experiment became only "cleaner": we decided to drain the oil using an electric pump on the same car, which we had some time ago. This is the Chevrolet Aveo.

Pure experiment

Having inserted a tube into the hole for the dipstick, we connect it to the pump. On the other hand, we fix the second tube - to drain the oil. We lower its second end into a 5-liter plastic bottle from under drinking water (a transparent container allows you to control the volume of the drained working fluid). We make sure that the pump is turned off, after that we connect the terminals of the device to the car battery, observing the polarity.

We turn on the pump and start pumping out. The oil rises through a tube inserted into the dipstick hole, passes through the device, and flows out of the second tube into a plastic container.

After a few minutes, the sound made by the oil pump engine changed as the engine became easier to operate. This means that the oil has run out. We will verify this by moving the tube inserted into the dipstick hole. If the sound of the pump does not change, turn off the device.

Examination

To understand how efficiently the electric pump has coped with its task, we lift the car onto a lift and unscrew the drain plug in the pallet. The oil flows out quite intensively. During our last experiment, when we used a vacuum unit for similar work, this was not the case.

The conclusion is obvious: it is not worth it by yourself using an electric pump. And although the device is interesting, it clearly needs improvement.

What's left

Until the end of draining the oil from the engine, we replaced the oil filter and refilled with fresh oil. The result of the experiment did not satisfy us -.

Despite the fact that the experiment with an electric pump questioned the effectiveness of this device, it is possible to change the oil in the engine in the garage without an inspection hole. If you use a vacuum unit for this. It costs twice as much as an electric pump (2600 rubles versus 1300-1350), but it has two significant advantages over it: a vacuum unit that pumps out oil almost completely is more efficient and versatile, since it allows it to be drained from the engine even through a narrow oil hole. probe.

Text: Tatiana Turbal

On the website of a popular Chinese online store, in the description of a 12-volt water pump for arranging fountains in aquariums and country decorative mini-pools, we accidentally came across a curious review of a Russian car owner who used this pump as a system for pumping oil from the crankcase of his Fiat Bravo!

The pump is designed for water, but the cunning citizen quickly realized that if you connect thin hoses and wires with a pair of "crocodiles" to it to power the device from car battery, then you get a super-budget system for changing the oil in the engine or gearbox! Similar pumps, complete with tubes and wires, designated as specialized for pumping oil, cost from 2,000 rubles or more in a Chinese online store, so in this case it turns out to be an ultra-economical option.

This decision is, of course, not relevant for everyone - after all, what is the use of pumping oil through the dipstick, if then you still need to climb under the "belly" of the car in order to unscrew the filter? However, there are a lot of cars in which the modification of the engine and the layout of the engine compartment allows you to easily unscrew the oil filter from above from under the hood: from Grants to Focus and from the "Volgov" old man ZMZ-402 to "Shkodovsky" 1.2 MPI with replaceable paper elements in glasses. Well, the only ones of a kind - Volkswagen engines CAXA, CFNA, etc., in which the filter is located almost vertically at the level of the block head, as a result of which it is even easier to unscrew it than to add water to the washer reservoir. Plus, the filter is removed completely clean and empty, without a drop of oil.

Let's check how convenient and feasible the proposed solution is? Our goal is to determine the efficiency of the pump, is it sufficient when working with thick oil instead of water, and most importantly - how durable is its design? After all, if, in the interval between oil changes, the residues of working out in the pump destroy its plastic from the inside, then there is no point in such a "handicraft" ...

Pump design

The design of the pump surprised and disappointed. There was a feeling that the cunning citizen, who threw the idea to the masses, did not disassemble it before using it as an "oil pump" ... The principle of operation of the Chinese handicraft is practically the same as that of pumps high pressure washing installations"A la karcher", but not on the basis of metal plungers-pistons, but on the basis of silicone elastic membranes. An eccentric is installed on the shaft of the electric motor, which, rotating, alternately lifts the pumping diaphragms located in a circle. One-way course fluids provide check valves made of the same transparent silicone.

This design of the pumping unit of the pump has raised doubts. Of course, it sucks water without problems, but oil can quickly corrode or soften and deform rubber membranes and valves, rendering the gadget unusable. Therefore, after clarifying the design features of the pump, the foreground of the experiment was not the test of the ability to pump engine oil, which, in general, is obvious, but the ability of the device to remain operational after that!

Downloading oil!

To pump oil through the dipstick hole, you will have to choose a suitable plastic tube. This task is not to say that difficult, but, to some extent, creative. The tube should go through a narrow opening and be thin enough to not resist the flow of oil. In our case, we got a television antenna cable. Russian production, from the shell of which we pulled out the central core and the inner braid, holding the tail in a vise.

A real experiment confirmed the efficiency of the pump - about three and a half liters of oil from the WV Polo engine are vigorously pumped out in about five or six minutes; the motor heats up during this time, but not critical. Control unscrewing the sump plug showed that no more than half a glass of oil was not drained. In general, an uncritical amount, which can also be reduced by pouring 200 grams of pure fresh oil into the oil filler neck after bubbles have escaped from the pump.

Is the pump durable?

Leaving the pump unclean after changing the oil is fraught with danger. The lubricant can corrode or dissolve the rubber filling of the pumping unit while you roll your 10,000 km, waiting for the next replacement ... Therefore, we carried out a control measurement of the pump's performance on water (which showed that the pump pumps three liters of water in about two minutes), after which rinsed it thoroughly and measured its performance again after a month to make sure it did not deteriorate and its efficiency did not decrease.

The standard procedure for changing the oil in a car engine requires an inspection pit, overpass or lift. In a car service, such a service costs about 1000-1500, while it is not always possible to see the process with your own eyes, which means that there is a risk that the wrong oil will get into the engine. To save money and nerves and not look for a special platform for changing the oil in the usual way, you can change it yourself through the dipstick tube; for this, a compact device is used in the type of action similar to a conventional pump.

1 Oil change through the dipstick - how does it work?

To replace lubricating fluid a special device is used directly through the dipstick tube. It is a vacuum pump with special pipes and transition elements. There are many models on the market that vary in speed, tank capacity, design and durability. Such a gadget can be manual and electric, may have additional tubes and "chips", due to which the work on pumping is faster. Regardless of type, size and cost, almost all of them consist of the following parts:

• a hose or tube for pumping oil;
• main liquid tank;
• a special pump for evacuating and forcing air.

The tank has two holes, into one of which the main tube is inserted, and into the other the entrance from vacuum pump... After that, the procedure for pumping out the spent liquid is carried out. To do this, you need to get oil dipstick and insert the end of the hose into its tube so that it reaches the bottom of the crankcase. After that, an electric or manual pump is used, with the help of which air is injected and a pressure difference is created.

Then the pump is removed, the check valve fixes the required pressure, due to which the oil gradually begins to flow from the sump to the tank. Electric pumps have special stops that are configured to stop the device when the required amount of lubricant is reached.

If there are no such systems, then the tank has a translucent appearance so that the car owner can see how much fluid has been received. The process itself takes from 15 minutes to half an hour, it all depends on the type of oil used, its viscosity properties, the degree of pollution and the power of the installation itself.

Before carrying out such a procedure, it is necessary to fix the car on the most level surface and let the engine run for several minutes. This will allow the oil inside to warm up to operating temperatures, sediment will rise from the bottom, and during the pumping process, its maximum amount will flow into the tank along with the main liquid.

2 Pros and cons of changing the oil pump

Among the main advantages of changing the oil through the dipstick tube in the engine is the absence of the need to drive the car to inspection pit or a lift, unscrew it once again drain plugs from the pallet, remove the crankcase protection, which is on many car models, select suitable containers, etc.

This method is relevant for those car models in which the oil filter is located in the engine compartment, so that it can be reached and unscrewed by hand.

This is especially true for many car models, including the popular Lada Granta, Ford Focus, Volga 3110, almost all Skodas with gasoline MPI engines, some VW CFNA engines, on which the filter is located directly near the cylinder head. If it is located at the bottom, near the crankcase, then you will have to drive the car onto a platform or a lifting device in any case, and without replacing the filter, the whole process becomes meaningless.

With all the advantages and convenience of this method, it also has disadvantages, which are often argued about among motorists and specialists. The fact is that when using low-quality oil, as well as in the case of its serious contamination due to a long drive or mismatch in viscosity and type, combustion products of additives and other deposits that form as a result of intensive engine operation settle to the bottom of the sump.

After pumping out with the help of vacuum, heavy constituent sediments remain at the very bottom, and after new oil is poured into the engine, these deposits are mixed with the new composition, significantly reducing its resource and lubricating efficiency. Therefore, experts recommend, if possible, alternating both methods, making a replacement both through the dipstick and the classic way of completely draining the oil from the sump with the engine flushing procedure.

Remember that when using a high-quality and suitable type of oil, correctly replacing it every 8-10 thousand kilometers, no sediment will form at the bottom, of course, if certain elements in the engine system are serviceable and not worn out, especially parts of the cylinder-piston group.

The advantages of the do-it-yourself oil pumping method by creating a pressure difference also include the availability, mobility and compactness of the device. The replacement pump is inexpensive, reusable, fits in the trunk and can operate in a variety of climates. But to ensure long-term operation, it must be periodically cleaned of oil contamination, which is not always quick and not very convenient.

3 How to choose a quality device?

There are a huge number of models of domestic, European and Chinese production on the market, the cost of which varies from 500 to 12,000 rubles. There are more professional options found in various auto repair shops, as well as manual, electric, rotary, etc.

When choosing a factory-type electrical device, experts recommend paying attention to such parameters as:

• Power and performance. The best option for pumping out an average volume of oil (4-5 liters) for 10-15 minutes - 50-150 watts.
• Material and build quality. The main criterion is tightness: the higher it is, the more efficient the operation of the device. High-quality pumps and parts are made of stainless steel.
• Manufacturer and cost. You should not buy semi-professional models, they have high performance and speed, but they are expensive and are more suitable for installation in garages. Optimal price with the declared parameters of a more or less high-quality pump, 1500-2500 rubles.

It is worth noting that both manual and automatic pump types can be made by hand. The easiest and most proven way is to use a conventional electric pump (you can take a compressor to inflate the wheels) or use a more compact version of the device, for example, a small electric pump for decorative fountains and aquariums. It fits easily in the palm of your hand, has the required performance and is powered by an on-board network.

4 How to make a pump with your own hands - we use a proven method

The cost of such a mini-pump does not exceed 500-700 rubles when ordering via the Internet, or it will be slightly more expensive when purchased in a specialized store. A standard pumping device with tubes and wires will cost about 2,000-2,500 rubles. As a result, the savings are small, but, as you know, what is done with your own hands is much more pleasant.

Before you buy or make your own device for pumping oil through the dipstick, you should make sure once again that the complete set of the engine and the arrangement of other parts in the engine compartment allows you to unscrew or remove the oil filter without having to climb under the car.

The principle of operation of such a "water" pump is similar to the more expensive counterparts of the "Karcher" type, which are based on the technology of using high pressure. But, given the cost of this compact device, instead of metal pistons, it uses silicone diaphragms with an eccentric on the engine. The latter rotates during operation, lifting these very membranes to one side or the other. Check valves made of silicone material are installed nearby.

In addition to the device itself, you will need two more pipes for pumping oil, a suitable plastic or glass container (for 5-7 liters) and two wires with "crocodiles", with which the pump will be powered from the battery. The wiring can be used from any old electrical appliances, for example from a multimeter, etc. They must be connected to the corresponding terminals on the pump, carefully insulate the connection points and connected in series with the battery before starting work, remembering to observe the polarity.

The oil pumping tube is a little more difficult, since it must be thin so that it can freely pass into the narrow hole from the dipstick, and at the same time it has thin walls so as not to create unnecessary resistance when pumping warm oil. A versatile and proven option is to use tubes from the windshield wiper system of some old car. You can also use unnecessary television cable, from which all the cores and inner windings are pulled out, or other types of material, there are no limits to a creative approach to the issue.

One part of the tube is lowered into the prepared container, the other is carefully pushed into the hole in the engine. The wires are fed to the battery, the pipes and wiring at the inlet and outlet of the pump are checked for leaks, and the device is started. With the right materials, using this method, you can pump out 4-4.5 liters of oil in 10-15 minutes, without even getting your hands dirty.

Assembly diagrams and materials may vary, but the principle is the same. And to use this device many times, be sure to clean the pump after each pumping down. To do this, the inlet and outlet pipes must be lowered into a small container with gasoline and the pump must be turned on so that it works for several minutes, then instead of gasoline, use water with the addition of some effective detergent.