In English, the torque converter (also known equally the turbine) is a hydraulic clutch between the transmission and the engine. It is correct to use the official term "torque multiplier" in Estonian, but the turbine or torque converter is more mutual. At that place is a lot of data material on the Internet most how information technology works, so nosotros're not going to exercise it over again.

https://en.wikipedia.org/wiki/Torque_converter

As information technology is a closed detail (unavailable to a standard repair shop), motorcar manufacturers do not offer repairing of this role, but information technology tin simply be replaced with a new one. Depending on the vehicle, the price of a new torque converter is 1500-2500 €.

Fortunately, notwithstanding, torque converters can be repaired. The repair of the torque converter requires quite a lot of special equipment for cut it off, measuring, assembling, gluing clutch discs, welding, quality command, and so on.

The Hõbenool began to repair torque converters in 2022. Nosotros were the first in Republic of estonia who purchase the special equipment.

How do I know that a torque converter of my vehicle needs the repair?

The well-nigh common mistake that occurs in a torque converter is vibration while driving smoothly. This is caused by a worn-out lock-up clutch inside the sleeve.

Some other common problem is a strong oil leak under the car. This is usually caused by damage to journal bearing of the oil pump side by side to the torque converter, which in turn damages the turbine.

Less common defects are related to the breakage of another component inside the torque converter, such every bit a freewheel clutch, springs, etc.

What tin can be repaired inside a torque converter and what not?

As a rule, cost components can be exchanged: lamella or clutch discs, bearings, seals, bushings, pump shaft. To a sure extent, internal housing surfaces can also be restored and candy.

Information technology is not normally possible to repair other parts or, rather, they cannot be bought as new ones, but merely accept from another torque converter. Therefore, the general rule is that the torque converter can merely be repaired if its body is both inside and out a whole and the blades are non damaged.

How long does a repair take?

There are many unlike types of torque converters. For example, about 50 different torque converters are used for Mercedes 5-speed transmission. A similar lodge of magnitude (twenty dissimilar modifications) is for each type of transmission.

If we have a torque converter with the aforementioned production code in stock, the repair will not take longer than turning off the sleeve that needs to be repaired and making sure the latter is fit for recovery. In this case, less than an hour waiting time could be counted on. Nevertheless, if there is no exact same type of the sleeve, you should volume a fourth dimension up to few days.

What practice I need to restore the sleeve correctly?

A torque converter is emptied of oil with a special auto. The lathe is then used with the special frame to cut the body.

A side by side step is cold and hot washing of the details. After the damage assessment, the assembly takes identify.

Depending on the type of the turbine, either the ready-made clutch discs tin can be used, or the latter can be glued with a special press meal to the piston. This process is quite of import because information technology can change both temperature, compression force and time. When the glue is too weak, the disc will after undo, the pores of the coupling disc volition be pressed when glued too firmly, and the friction material will remain too tight and will not absorb plenty oil.

Certain prestressed turbines (ZF production – used on Audi-s, BMW-south and other premium brands) require very precise pretensioning of the clutch discs.

The welding of the casings must ensure every bit pocket-size divergence as possible because the torque converter is directly attached to the engine crankshaft and rotates up to 6500 rpm. If the lesser and top housing are non exactly centered, the transmission'due south oil pump will damage in the futurity.

Only special equipment can exist used to repair the torque converter correctly.

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