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Engine overhaul in Moscow

Engine overhaul has become more important than ever. Companies spend a huge amount of human and production resources to improve this unit. But the paradox is that the reliability of modern engines decreases every year. And if earlier motors required major overhauls after running almost half a million kilometers, now they can hardly overcome the first hundred without serious investments. And the cost of a new unit can sometimes be comparable to the price tag of the car itself. What to do if the car is immobilized, MFC LFA specialists will tell you .

Read about the real reasons that lead to engine overhaul

Procedure for engine overhaul

When preparing the engine compartment for uninstalling the unit, it is necessary to disconnect all electronic connections, drain all fluids without exception, and separate the engine from the gearbox, cooling system, and intake and exhaust manifolds. During repairs, it is important to remove all factory sealant and use special means to clean all surfaces from carbon deposits and oil stains.

A repair can be called high-quality only if the engine is completely disassembled and all disposable small items are subsequently replaced. By the way, all screws that have been removed without exception must be thrown into the trash and screwed in new ones . Together with them, carry out the same procedure with gaskets and seals. This approach will avoid possible oil leaks.

You should not ignore the injectors, be sure to clean the system or completely overhaul it using repair kits. In addition to the mandatory procedures for checking the cylinder walls for scuffing, the condition of the crankshaft journals and the flatness of the block head, the entire timing belt kit is changed . In other words, during a major overhaul, it is important to thoroughly examine every corner of the engine and replace not only the piston group, but also almost all removable parts, taking into account the nuances of each individual engine model.

Cracked cylinder head

Overheating of the engine can cause the cylinder head or cylinder block to crack. Often, the above problems arise on aluminum engines, which also suffer from tearing of liners from the block and are susceptible to corrosion. Installation of additional attachments, including turbochargers, entails excessive loads. And due to an insufficiently efficient cooling system, the motor overheats, which leads to its rapid demise, including during the warranty period.

Computer engine diagnostics in Moscow

The yellow engine icon (correctly called check engine) came on on the car's dashboard. The first step is to do computer diagnostics by connecting special equipment for scanning errors into the OBD 2 connector. Many customers have long managed to acquire simple analogues purchased on Aliexpress, but they can only point in the direction. Electrician diagnostician MFC LFA has more serious equipment, including branded programmers, including Lexia, Star Diagnosis, MaxiDiag, VAG-COM and others. Thanks to them, it is possible to identify deviations in the performance of components and assemblies in real time.

You can diagnose the engine for malfunctions yourself: read about independently determining the causes of engine breakdowns

Should you be afraid if the check engine light is on?

A light on the dashboard indicating an engine malfunction often plunges the car owner into shock. On the one hand, such a reaction is quite appropriate, since a fully functional car will not light up the check engine indicator. By the way, people also call it “check” or “Jackie Chan”, and in English it is written “check engine” and is translated as “check engine”. However, problems in this case may arise not only with the engine, but also with the transmission. There is simply no separate warning on the boxes. As described above, the operating readings of the units are read by sensors in which a tolerance is programmed for the values.

Engine error light on: reasons

✅ a lambda probe or oxygen sensor may itself become unusable, or report problems with the mixture in the combustion chamber; ✅the catalyst becomes clogged and reports a malfunction with the exhaust system; ✅mass air flow sensor detects a problem in the intake system; ✅indication can also come from bad spark plugs and high-voltage wires; ✅ a violation in the fuel system or its depressurization due to a gas tank cap that is not completely tightened; ✅engine input speed sensor calls for checking the automatic transmission

for the correct operation of its various components.

However, it is worth noting that such reasons can also be a consequence of much more serious problems with the engine and transmission. On the contrary, the yellow light also lights up when low-quality lubricants and flammable substances enter the system. This is especially true for gasoline. Usually after some time, up to several days, such a check-engine goes out by itself. However, to be sure, you should still contact a professional and check your assumptions.

Run-in after major overhaul

If the repair is carried out professionally and all operating rules are followed, then after capitalization the engine can reach the original resources provided by the manufacturer and operate uninterruptedly for many years.

After completing the overhaul, the car owner must perform a break-in:

• warm up the engine immediately before driving;
• alternate acceleration with smooth braking;
• drive only at low speeds;
• stop traveling in high gear;
• It is not recommended to drive for a long time at the same speed and speed;
• Avoid carrying heavy loads and towing.

Is it worth buying a contract engine instead of repairing an old one?

Most people are not prepared for such a hard-on-the-wallet situation, and the desire to save money makes the choice in favor of a used engine. Disassemblies and private sellers call them beautifully - contract motor, assuring the minimum mileage of the unit. Moreover, for a twenty-year-old car, according to them, it will hardly be more than 100,000 km, certified by fake documents and photos. Warranty - no more than a month - air.

MFC LFA specialists have no desire to convince anyone, but just think about all this and use common sense.

If I have dissuaded you from buying a contract for three kopecks, and sometimes not for three, then read on about the overhaul of the internal combustion engine. There are also many pitfalls here. Such work should be entrusted exclusively to trusted companies with many years of experience and responsible craftsmen. After all, when disassembling a motor, amateurs can damage a large number of expensive attachments, break threads, damage internal elements, puncture fragile plastic and make a mess.

In addition, all stages of work must be performed in strict sequence. The same applies to assembling the unit, in which it is extremely important to know the exact tightening force of the bolts with a torque wrench. In addition, incorrectly aligned timing marks can lead to another major overhaul. Now let's talk about its proper implementation.

Why is it profitable to contact us for engine repairs?

CityGlush mechanics are certified and have a minimum professional experience of 8 years. We repair cars of all manufacturers and brands, take on cars in any condition and perform tasks of any complexity. You can also order original spare parts from us.

The cost of diagnostics and repair of internal combustion engines with replacement of consumables and components is fixed and is indicated in the price list. Our work is 100% transparent - you always know exactly what you are paying for. We work with the client directly - no intermediaries, overpayments or additional markups. Hence - the best prices in Moscow and Moscow Region.

If you need an engine repair service or require qualified advice, call us, request a call back, or come to any of the CityGlush car services. We work every day and are ready to offer the most favorable conditions.

How to properly break in an engine after repair

A very important point for trouble-free operation of the engine after a major overhaul is its operation for the first 1,500 km. MFC LFA specialists recommend:

• Before each trip, check the oil to avoid post-repair leaks in case of installation of defective spare parts;
• do not turn the engine above 2500 rpm and do not accelerate over 100 km/h;
• Do not accelerate sharply or perform engine braking;
• use all kinds of additives;
• refuel at unverified gas stations;
• minimize engine idling;
• after 1,500 km. It is imperative to change the oil and oil filter;
• During this period, the final grinding of the piston group, valves and shrinkage of rubber gaskets takes place.

Signs that major repairs are needed

The following signs may indicate the need for major repairs ahead of schedule:

1. Increased oil consumption.

1. Black smoke from the exhaust pipe.

1. Presence of carbon deposits on the spark plugs.

1. Uneven engine operation at idle speed.

1. Increased fuel consumption.

1. Decrease in operating power of the power unit.

1. Extraneous noises (“knocks”) when the engine is running.

1. "Shots" from the exhaust pipe.

1. The engine began to overheat for no reason.

1. There are noticeable interruptions in engine operation.

If one of these reasons is identified, you should immediately contact a car service for a full diagnosis. Once experts figure out where the problem is coming from, they can begin to fix it.

If you ignore the presence of signs of malfunction, after a while you can get a more serious problem, the solution of which will require much more time and money.

What is needed for a major overhaul

When performing engine overhauls, attention must be paid to each engine component. To do this you will need a whole list of spare parts:

• repair half rings;
• generator and timing belts;
• air and oil filter;
• spark plugs in the required kit;
• vacuum hose;
• rings, pistons and pins included;
• liners (connecting rod and main);
• antifreeze, gearbox oil;
• oil seals.

The list of spare parts may be expanded or shortened. This depends on the amount of work being done, the complexity of the engine repair, and the need to replace a specific spare part. In certain situations, you can avoid repairing a specific unit due to the excellent quality of the parts. It all depends on the degree of wear. This will all tell you what equipment you need to use in your work.

It is impossible to talk about the specific cost of the spare part. It will vary depending on the manufacturer, supplier and distributor. In addition, prices fluctuate depending on the market rate. For foreign cars, it is best to purchase used spare parts that will be of decent quality. The price will be almost halved.

It is worth paying attention that when carrying out repairs at a service station, craftsmen can recommend their own spare parts for installation, having their own supply network, offering a complete list. This will avoid expenses in case of necessary refurbishment. But the cost of spare parts will be slightly higher than on the market. If you purchase them yourself, there will be cases of waiting for delivery. This will also lead to payment for storing the car at the service station.

Important! Before purchasing any spare part for major repairs, you should consult with a specialist who will carry out the repair work. Since he encounters this every day, he will be able to suggest what and how best to choose. This will help avoid overfitting.