Hyundai Matrix (2008+). Condensation in the engine

Condensate is a liquid that has changed from a gas to a liquid state. Water in the engine will inevitably damage it - it will start to rust. And in winter, at low temperatures, the water turns into ice, which makes the engine freeze. This can cause the cooling system pipes or the cylinder head to simply burst. Therefore, the appearance of condensation must be treated with due attention.

Condensation in the engine may appear as a deposit or a small amount of whitish foam forming on the oil filler cap. This is a sign that there is water in the system. Its presence can alert the motorist, since similar signs can signal certain problems. Excessive foam formation may indicate a damaged gasket in the cylinder head, or antifreeze entering the oil system. With such problems, the engine often overheats. But if there is a little foam, in such cases, as a rule, you should not worry.

Why does this foam form in the engine? It remains on the engine after it has cooled down and is the result of oil and water mixing. As a rule, after a short time after starting the engine, this deposit will be washed off from the valve cover, but it may remain on the oil filler neck. Does this indicate the need to change the oil? No. The amount of water in it is not so significant as to affect its quality.

In addition to the engine, condensation can form in other automotive systems. For example, in a muffler, it appears from a sharp temperature drop. If water appears in a gas tank, the first thought can often be that it got there with gasoline. But this is not the only reason - if you leave the car warm, condensation can also appear. Special fluids - water removers from the tank will help to cope with this problem. They transform water in such a way that it turns into easily combustible compounds. It is enough to use them only once a year. Condensation may also appear in the body due to temperature changes. The most optimal solution in this situation would be to use special corrosion protection.

After the trip, the air in the crankcase cools down and its volume decreases. As a result, additional humid atmospheric air is sucked into the crankcase. As it cools further, moisture condenses on the walls of the engine.
Condensation accumulation is facilitated by short trips when the engine does not have time to fully warm up.

WHY EMULSION APPEARS IN THE ENGINE

A white substance with a yellow tint on the dipstick, under the oil filler cap, indicates an admixture of foreign liquid in the engine oil. But where exactly does the emulsion come from in the engine and why does it happen mainly in cold weather? Let's consider the main causes and methods of troubleshooting.

Emulsions are formed by two immiscible liquids. In most cases, one of the phases of the emulsion is water. In other words, when engine oil and water are mixed in the engine, you will find a white-yellow coating in the sump, on the dipstick, and the oil filler cap. There are only 2 reasons for the appearance of an emulsion in the engine:

Ingress of coolant into the oil, of which water is a component. Antifreeze leakage manifests itself not only as an emulsion, but also in a decrease in the amount of coolant in the tank, an increase in the oil level in the sump;
In no case, do not continue to operate the car if you find emulsion on the dipstick. In this state, the oil loses its lubricity. It is no less dangerous to get engine oil into the cooling system, which is why there is a high probability of engine overheating.

Condensation on the oil filler cap during the winter season.

WHITE COVERED OIL FILLER LID

Many drivers are seriously scared when they see a white emulsion on the inside of the lid. But in most cases, their fears are unjustified, since plaque occurs due to the peculiarities of the engine's operation in the frosty season.

The ingress of moisture into the crankcase ventilation system is a natural process. But when operating the car in the warm season, it manages to evaporate. With the onset of frost, moisture actively condenses on all cooled surfaces. When the engine warms up, this moisture completely evaporates from the surface of the heated parts. But since the oil filler cap does not always have time to heat up in cold weather, condensation accumulates on its inside. Water droplets, mixing with oil vapors, forms a yellow emulsion.

In other words, the main reason for the emulsion on the cover is the short runs of the car, during which all the engine parts do not have time to warm up thoroughly. That is why the owners most often notice such a raid in winter, late autumn and early spring. If you find emulsion on the oil filler cap, but the oil is in good condition on the dipstick, do not worry. It is enough to wipe the cover and periodically observe the condition of the oil in the engine.

To reduce the amount of emulsion, periodically drive your car more than a few kilometers from home to work and back. At the same time, we strongly advise against warming up the engine at idle for a long time.

HOW CAN ANTIFREEZE GET INTO THE OIL?

Breakdown of the cylinder head gasket. It is extremely rare that the cause of a malfunction is in a manufacturing defect of the gasket. More often, a loose fit of the cylinder head to the BC becomes a consequence of engine overheating. Weakening zones of the gasket appear due to deformation of the cylinder head, BC. It is in such places that antifreeze breaks out from the engine cooling jacket into the oil circulation channel. Also, the reason for the leakage of the mating surfaces can be the use of extended bolts, poor-quality milling / grinding of the mating surfaces, incorrect order and tightening torque of the cylinder head bolts.
Erosion of the cylinder block. Poor quality coolant can eat up cylinder blocks and cylinder heads. The consequence of this aggressive behavior is craters near the coolant circulation channels. If the erosion zone spreads in the direction of the oil circulation channel, then over time this will lead to a weakening of the cylinder head gasket and the formation of an emulsion in the engine.
Crack between the oil and antifreeze channels. The cause of microcracks, through which mixing occurs when the engine heats up, most often in engine overheating.
Heat exchanger gasket leaks. The unit is designed to effectively cool the oil and maintain the thermal balance of the engine. On some cars, this kind of oil cooler is a real headache. First of all, we are talking about the owners of Opel, in particular, car models with Z18XER engines. The problem of emulsion on the dipstick in the coolant reservoir on such motors is a common design defect in the heat exchanger.

HOW TO DETERMINE WHY ANTIFREEZE GETS INTO THE OIL?

Quite rarely, the mixing of coolant with oil occurs unilaterally. It is more likely that if you find emulsion on the dipstick and under the valve cover, you will find traces of oil in the expansion tank.

When looking for the cause of the emulsion in the engine, we recommend going the path of least resistance, starting with readily available units. If an oil heat exchanger is installed on the car, inspect its housing for antifreeze leaks, oil misting. These symptoms can serve as an indirect indication that the cause of the malfunction is precisely in the cooler.

If you find a white emulsion on the dipstick and antifreeze leak at the initial stage of the onset of the problem, you can limit yourself to flushing the engine by changing the oil n times. For such purposes, even cheap mineral-based products can be used. But even so, it is important to know how not to buy counterfeit.

If the entire filling volume of the engine oil has turned into an emulsion, you cannot do without completely disassembling the engine. At the same time, be sure to blow through the lubrication channels of the crankshaft journals, oil nozzles of the piston group. The emulsion can clog the channels, which will lead to the unfortunate consequences of oil starvation.

DEFECTIVE BC, BLOCK HEAD AND GASKET

After removing the cylinder head, carefully inspect the gasket and mating surfaces. The zones of weakening, which cause the mixing of oil and antifreeze, are usually clearly visible on the old gasket.

If the gasket does not cause any complaints, most likely a microcrack has formed in the cylinder head or BC. In the article on replacing the cylinder block, we talked about how you can check the BC at home using kerosene. If possible, we recommend using professional help. As practice shows, only a check on a pressure test bench can reliably determine the fact of leaking liners, oil circulation channels, coolant.

How to deal with emulsion?

Do not warm up the engine at idle speed for a long time. Firstly, at idle, the crankcase ventilation system is little involved, and secondly, warming up at idle is very slow. It is necessary to start driving after a short warm-up (as, incidentally, the operating manuals advise). If you suspect a breakdown of the cylinder head gasket and the ingress of gases or antifreeze into the oil system, then for this you should look at the radiator of a heated car for bubbling, as well as the crankcase of a heated engine for a significant emulsion in the crankcase. On the valve cover, the emulsion disappears when the engine has been running under load for a sufficient time - i.e. driving without frequent stops, for example, on a suburban highway at speeds above 80 km / h.

If an abundant emulsion is found on the oil dipstick, then this is an occasion to take a closer look at the state of the engine, warm it up well and make diagnostics aimed at finding possible problems.

Also, an increased formation of emulsion will be if the crankcase ventilation system is clogged or the outlet of crankcase gases is not forced, but simply a hose hanging down from the engine cover. Attention: making artisanal changes to the crankcase ventilation system, namely hanging the hose into the atmosphere, significantly reduces the service life of the engine oil due to its contamination with both fuel vapor and water and deposits of tar and other fuel combustion products. Therefore, if you did it all the same, then you should shorten the interval between oil changes.

servicing Kia and Hyundai

Why visit us:

Car service "Auto-Mig".

We perform absolutely everything in terms of repairing Kia and Hyundai cars. Our employees have vast experience and a large number of satisfied customers, all work is in line with the manufacturer's recommendations. In view of this, trusting us, you seem to be giving the repair to the manufacturer.

Our service provides high-quality repair services for your car, offering the most reasonable prices in terms of price / quality ratio, so those who turn to Us never return with the problem they came with, choosing from now on "Auto-Mig" constantly. We strive to provide the best possible repair safety for whatever we do.

Serving with us, you already in advance give the technical transport to serve much longer without breakdowns.

"Auto-Mig" is a guarantee of reliability and stability of your car in any conditions.

It is worth noting that modern Korean cars are not old copies of the Japanese, these are first-class cars of different class, and are repaired in a special way, they already have their own history and you can repair it with high quality using only professionally thought-out technologies.

Our auto technical center provides the following services:

• full diagnostics of internal combustion engines, gearboxes and electronics;
• diagnostics of individual nodes, directions;
• repair of any complexity;
• air conditioning service (troubleshooting, refueling);
• identification of incomprehensible breakdowns, due to which other service stations refuse and subsequent elimination.

We have the most advanced equipment to help you repair your vehicle the best, increasing the level of work done to the maximum.

We work on all Kia and Hyundai models, check the details by contacting any of our technical centers.

Repair of Kia in the AutoMig Car Service

(examples of work performed):

Repair Hyundai in the Auto-Mig Car Service

(examples of work performed):

Repair of commercial vehicles in our technical center:

Many Korean cars are used by firms - these are small trucks Porter and Bongo. And for passenger transportation, usually Stareks H-1 and Carnival. For these fleets, we also offer our cordial approach and maximum attention.

• We work by bank transfer
• We conclude contracts
• We provide all the necessary documents for accounting

Service of commercial vehicles

(examples of work performed):

Checking the car before buying

• We will help you buy a car without pitfalls. Checking the machine before buying will make sure it is in accordance with the technical condition declared by the seller.

And just a little more about our technical center:

Our specialists will repair the engine and suspension of almost any degree of complexity. We use official electronic catalogs and strictly follow the repair technology. When carrying out repair work, we use spare parts only from well-known manufacturers, which we purchase directly from importers, which ensures their low cost.

In the ‘AutoMig’ car service you can repair the brake system of your Kia or Hyundai using quality materials and using the manufacturer's technology.

Come, we will be happy to help you!

1. Place a temporary support under the engine.

2. Remove:

□ Ancillary drive belt (s).

□ Water pump pulley.

□ Right engine support and its bracket.

□ Bolt (1) and pulley (2) of the crankshaft

□ Covers (3) and (4) timing belt

3. Turn the crankshaft until the mark (5) is aligned with the reference mark.

4. Check the alignment of the hole (6) of the camshaft toothed pulley with the hole in the cylinder head.

5. Loosen the tensioner bolts (7) and (8).

6. Move the tensioner away from the belt, lightly tighten the bolt (8).

7. Remove the timing belt.

Note: If you intend to reinstall the belt, mark the direction of rotation.

Hyundai Getz Belt Installation

Clockwise only. Put on the belt

Direction of rotation labels.

1. Check the tensioner pulley for smooth rotation.

2. Check the alignment of marks (5) and (6) with the benchmarks.

3. Slip the belt counterclockwise, starting at the crankshaft and with no slack in the drive run.

4. Loosen the tensioner bolt (8).

5. Bring the tensioner to the belt, tension the belt.

6. Tighten the bolt (8), then the bolt (7) to 20 - 27 Nm.

7. Turn the crankshaft two turns.

8. Check the alignment of marks (5) and (6) with the benchmarks.

9. Press on the belt at the point indicated by the arrow with a force of 5 kg.

10. The belt should bend by a quarter of the bolt head width, pos. (nine).

11. Install the removed parts in the reverse order of removal.

12. Tighten the bolt (1) securing the crankshaft pulley to a torque of 140 - 150 Nm.

High-quality repair and diagnostics of cars and commercial vehicles. We work with individuals and organizations. We carry out diagnostics of the brake system and running gear, engine repair, car maintenance, body services and painting. The staff employs auto electricians with many years of experience. Motorists specialize in certain brands of cars.

Car service on Piskarevka - Energetikov Ave., building 59.

Located next to the metro station "Pl. Lenina". Covers car repairs in Kalininsky, Vyborgsky and Primorsky districts of St. Petersburg. Performs all work on the chassis, engine, suspension and installation of additional equipment. A new wheel alignment stand for cars and minibuses was installed. Doesn't do car painting and body repair. It is convenient to get there from the metro stations "Ozerki", "Prospekt Prosvescheniya", "Udelnaya" and "Pionerskaya". There is a cozy cafe in the building. To the ring road - 10 minutes.

Car service in Kupchino - st. Dimitrova, building 1

Initially, the service was only engaged in body repair and painting. Subsequently, several buildings were built, in which new two and four post lifts were installed. Large car wash for cars and commercial vehicles. A separate workshop for the diagnosis of diesel and gasoline injectors. Repair of steering racks, turbines and auto electricians is in progress. The repair of mechanical and automatic transmissions is widely presented. Within walking distance from the metro stations "Zvezdnaya", "Kupchino", "Obukhovo". Suitable for residents of Frunzensky and Kirovsky districts.

Buy belt, pump and timing rollers 1.8 l

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