Exhaust manifold repair in Moscow at a low price in Ramflow

For minor defects, it is not necessary to replace the entire assembly with a new one. Malfunctions for which it is possible to repair the exhaust manifold at a GSAvto service station:

1. Curvature of the surface adjacent to the cylinder block by several millimeters.
2. Cracks and chips that do not affect structural strength.
3. Local burnouts of pipes.

Our service station specialists are able to restore more serious damage, even a completely split body. Each case is considered individually.

Prices

• Prices for the full range of exhaust manifold services are subject to agreement.
• Repair of cast iron exhaust manifold from 1500 rubles
• Gasket replacement from 1100 rubles

Do you need to make a high-quality exhaust manifold?
Come to our car service! Our specialists will produce a high-quality exhaust manifold

We work only with proven and reliable European brands

• Repair of connecting elements from 1000 rubles
• Repair of stainless steel exhaust manifold from 2000 rubles
• Manufacturing of exhaust manifold from 10,000 rubles

Why is there no specific price? All cars have different exhaust manifolds; there are a number of problems with this element of the exhaust system, the solution to which is assessed differently depending on the type of repair, energy costs and car brand

Manufacturing of exhaust manifolds in Moscow

Most often, if a car owner requests to manufacture or install an exhaust manifold, then he has a goal - to increase the power of the vehicle engine.
More detailed information and prices can be found below.

Don’t know where you can make a stainless steel exhaust manifold? Come to us!

Our craftsmen produce high-quality stainless steel exhaust manifolds at a low price in Moscow!

When working, our specialists use various types of steel, titanium, aluminum

It is very important to correctly design an equal-length collector. Design is required to best suit the length of the part and to ensure that the exhaust gases do not lose their speed as they pass through the manifold pipes. You also need to achieve maximum performance from the car’s engine so that its power is increased to maximum levels.

Services

Our car service center "Lyoha Exhaust" offers you a wide range of services related to the exhaust manifold

• Manufacturing, repair and welding of exhaust manifolds
• Search and selection of a manifold for your car
• Free detailed computer diagnostics will help identify existing problems in the exhaust system
• Manufacturing of equal-length manifolds (for tuning sports cars)
• Exhaust manifold repair (welding cracks, holes)
• Use of various metals, alloys and types of welding for exhaust manifolds (cast iron, aluminum, steel and their alloys)
• Installation of new and used collectors

Our auto workshop always has a large amount of consumables for exhaust manifolds (gaskets, rubber bands, fasteners) available.

Cold welding when repairing the exhaust manifold

Small defects are repaired using special adhesives called “cold welding”. Before applying the mixture, the area to be repaired must be degreased. Adhesives should be used strictly according to the instructions. Then the result is a patch whose physical properties are similar to metal. This method is convenient for eliminating cracks and burnouts in hard-to-reach places. Glue is only a temporary measure to fix the damage. Under heavy loads of hot gases leaving the cylinders, the patched components will not last long. The adhesive composition is not designed for dynamic loads, but it can withstand static loads very well. Before purchasing glue, it is important to study its characteristics.

An exhaust manifold. Purpose and types.

The exhaust manifold (or as it is popularly called “spider”) is part of the engine attachment and the most important component of the exhaust system. Its main purpose is to remove exhaust gases from fuel combustion chambers. On one side it is connected to the engine cylinder head, and on the other to the catalyst (or to the stronger/high temperature resonator/flame arrester if the catalyst is removed).

A properly manufactured and selected manifold guarantees more efficient ventilation of the engine cylinders, which means more optimal filling with the air-fuel mixture.

Every second during vehicle operation, the exhaust manifold is subjected to high temperatures and extreme pressure. Exhaust gases containing toxic substances accelerate the action of corrosion, so the exhaust manifold is the element most susceptible to corrosion and burnout.

Exhaust manifolds are distinguished by:

• The number of pipelines (there are exactly as many of them as there are cylinders in a car engine)
• Types of pipe layout
• Length and volume
• Cast and welded (pipe)

When working, our specialists use various types of steel, titanium, aluminum

We repair stainless steel exhaust manifolds from 2000 rubles

Welding the exhaust manifold - technology and features

Most breakdowns are repaired by welding. Since the manifold can be made of stainless steel or cast iron (the second option is the most common), the restoration technology is different. Welding work on cast iron can only be performed by a highly qualified master. These are the specialists who work at GSAvto. Special electrodes are used and special technology is used:

• Cast iron is a strong but very brittle material. Therefore, mandatory mechanical processing is carried out extremely carefully.
• Before welding, we heat the workpiece to the required temperature and maintain it during the formation of the seam.
• Molten cast iron is very fluid. A graphite gasket is placed under cracks or crevices, otherwise the metal will simply leak out of the seam.
• After finishing work, slow cooling is necessary for several hours. Otherwise, new cracks may appear. GSAvto has developed the process technology without damaging the part.

If you are offered to “quickly” weld a manifold using the traditional method, you should doubt the competence of such a master.

Types of pipe layout

There are two types of exhaust manifold pipe layout:

• 4-1. This type consists of 4 pipes connected into one. As a rule, the number of pipes corresponds to the number of cylinders.
• 4-2-1. In this case, first, the pipes of the cylinders operating on the same stroke are connected in pairs (there are 2 of them), and then they are connected into one. Such collectors are most often connected to resonators, which have special “scales” inside the housing, which helps reduce the backflow of exhaust gases.
• 4-2-2. This type of welding of exhaust manifold pipes is used mainly for sports cars, for which a 3-4% increase in power is invaluable.

For all types of exhaust manifolds, it is possible to replace flange connections with reinforced or 3-4 layer corrugations. Flexible connections help reduce resonant frequencies.

Welding a cast iron exhaust manifold

Temperature processing of a high-carbon alloy is associated with certain difficulties:

• carbon burns out when exposed to heat, the metal becomes friable;
• Cast iron has a high fluidity coefficient;
• upon rapid cooling, due to internal stress, the casting begins to crack and becomes whitish, this indicates a change in the structure of the alloy.

Welding a cast iron exhaust manifold can be done by trainees. It is better for beginners not to undertake the restoration of a car engine part, or they should first practice on junk cast iron products. Until recently, welders did not undertake repairs to cast iron. The seam turned out to have a high content of scale, and the metal cracked in the heating zone. After the advent of special copper-containing electrodes, which made it possible to reduce the temperature in the melt bath to +120°C, it became possible to create strong connections.

Hot and semi-hot methods are not fundamentally different. The crack is welded with copper-containing additives when the part is preheated. When hot, the part is heated in the oven to a temperature of +600°C, a crimson tint appears. It is noticeable when shaded. After this, welding begins. To prevent the part from cooling down quickly, it is periodically heated with a blowtorch. With the semi-hot method, the part is heated within +300°C. The result is an even seam. It is very important to maintain the temperature during cooling. If the crack depth is large, it:

• pre-cut to the full depth;
• the edges are drilled out on both sides;
• the edges are smoothed at an angle of 30°.

They make a multilayer connection. Each seam must be forged, the penetration length is no more than 3 cm. The seams are made perpendicular to ensure a reliable connection. For electric arc welding, electrodes of the TsCh-4 brand are used.

The cold method does not require preliminary preparation. The crack is fused at temperatures up to 200°C. For work, special electrodes OZCH-6, OZCH-2 are used.

The fracture strength of a cold joint is lower. For critical connections (when the outlet manifold pipe is completely broken off), it is better to take MNCh-2 electrodes. When semi-automatic gas welding, copper filler wire is used.

Tuning

Tuning the exhaust manifold is a good place to start tuning the entire exhaust system. Why are such changes being made?

Firstly, to increase power. By installing a larger volume exhaust manifold, the engine receives less exhaust gas resistance, which results in a small increase in engine power (+2-3%).

Our specialists can install an equal-length manifold on your sports car, which will undoubtedly provide a guaranteed increase in power and torque. Such tuning is carried out both on cars with naturally aspirated engines and with turbocharged ones.

However, do not forget that increasing the length of the exhaust manifold pipes causes an increase in the temperature under the hood while the engine is running. But the specialists of the Lyokha Exhaust car service solve this problem by using non-flammable thermal insulating fabric, installing a heat-reflecting shield, manufacturing high-temperature pipe braiding or modeling and manufacturing a double-walled manifold.

After installing a new exhaust manifold, we recommend installing a straight-through high-temperature resonator to increase power and throughput. There is always a large assortment of them in stock at our Lyokha Exhaust car service center at the address: Moscow, Sokolnichesky Val 1, cor. 1

See photos of high-quality exhaust systems in our

Main malfunctions of the exhaust manifold

It's no secret that a car's exhaust manifold is exposed to high temperatures and pressure surges, which can lead to:

• Burnout of collector pipes
• Rapid corrosion processes
• Formation of scale on the outer surface
• Reduced strength due to expansion and contraction due to temperature changes
• Formation of condensation, which also leads to corrosion
• Burnout and stretching of gaskets between the manifold and cylinder head
• Clogging of pipes with combustion products

Welding a stainless steel manifold

Tubular components usually burn out at bends. Difficulties of working with stainless steel:

• alloyed alloys in the working area are subject to temperature deformation;
• Nickel, chromium, and other components actively oxidize when heated, which has a detrimental effect on the quality of the weld.

To eliminate defects, the argon welding method is used. The protective atmosphere protects the metal from oxidation; due to the airflow, the area bordering the working area heats up less. It must be taken into account that the thermal conductivity of stainless steel is lower than that of black low-carbon alloys. A small operating current is needed; it is selected experimentally. It is important to observe the speed of seam formation. The metal is welded in large passes so that intercrystalline corrosion does not occur in the joint area. The operating mode depends on the equipment used.

• using a universal inverter, refractory tungsten electrodes are used for argon welding in CD/AC TIG mode;
• for manual electric arc welding, heat-resistant MMA additives with a rutile coating are needed;
• for semi-automatic machines, stainless steel wire is chosen; the seam is dense and does not require additional processing.

Let's sum it up

If you are planning to improve the performance of your car's engine or it seems to you that there is a malfunction in the exhaust manifold, then we recommend that you sign up for our free detailed computer diagnostics by calling +7-903-129-20-00 or come to us at the address: Moscow, Sokolnichesky Val 1, cor. 1. After diagnosis, experienced specialists will give you advice and offer a rational solution to the problem, taking into account your budget and wishes.

Exhaust manifold - photo, video, Instagram

Also, you can read Clogged catalyst

Manifold repair services

The most common cause of collector failure is cracks in the housing. They occur when the catalytic converter does not work properly, constant vibrations due to problems with corrugation and strong mechanical loads. Cracks are repaired using argon welding. This allows you to restore the tightness of the housing. It is also necessary to eliminate the cause of the cracks.

The masters of the RamFlow exhaust systems center repair exhaust manifolds of any complexity. The work begins with diagnostics, which is necessary to identify the nature and cause of the malfunction. After this, the craftsmen begin repairs:

• cracks are welded using argon welding;
• broken collector elements are also welded;
• the burnt out parts are fused, due to which the walls thicken;
• when splitting the collector into two halves, both parts are welded;
• damaged gaskets are replaced.

If you're looking to have your exhaust manifold repaired, the technicians at RamFlow Exhaust Center will get the job done quickly and accurately. Specialists have professional equipment at their disposal: a powerful argon welding machine, machines for cutting metal, bending pipes, and so on. Repairs are guaranteed. Any questions? We are ready to answer them by phone: +7(495)142-0967.