DIY Lada Granta automatic transmission repair

In detail: do-it-yourself repair of automatic transmission Lada Grant from a real master for the site my.housecope.com.

It was the JF414E automatic transmission that the designers of Lada Grants chose for installation on the luxury versions of these budget cars.

Initially, it was planned to complete the grants with "automatic machines" from a more eminent manufacturer - the Japanese company Aisin AW60-40. But, despite the fact that at that time this box was considered morally obsolete, its cost was still higher than that of the JF414E of another Japanese manufacturer - Jatko.

It was this fact, and not the reliability of the automatic transmission, that determined the choice of Russian automakers. At one time, these boxes were also installed on Almeri (and, moreover, exclusively on Russian-assembled Almeri), but over time they were nevertheless replaced by similar Aisin boxes. So today JF414E is installed only on domestically produced cars.

To be fair, it should be said that the reliability of the four-stage JF414E is not lower than that of its Aisinov counterpart. On this subject, the owners of the grand can not worry.

The problem lies elsewhere: the Jatka box is much less common, and therefore spare parts for it, if you decide to repair the Lada Granta automatic transmission not in the VAZ-branded service, may not be at the master's hand. But this is not a problem either: any components for this box can be easily purchased at almost any spare parts store that sells components for Russian cars.

The first thing grant holders have to deal with when it comes to automatic transmissions is an oil change. And this despite the fact that the manufacturer of the automatic transmission claims that the oil in these boxes does not need to be changed throughout their entire service life. However, according to the car service masters, this is not the case.

With systematic overloads of the automatic transmission (and, given the small power of VAZ engines, this happens often), the transmission fluid becomes contaminated quite quickly - by the end of the first hundred thousand km. mileage of the car. It is at this moment that the first replacement should be made.

Most mechanics are convinced that these automatic transmissions are not capricious and not particularly sensitive to the brand of oil. Say, they can be filled not only with oils recommended by the manufacturer, but also their numerous analogues. On the one hand, this is true: both the JF414E valve body and its mechanical component will not suffer from this at all, but the contacts of the solenoids (valve body valves) at the same time begin to oxidize much faster, which very soon leads to transmission malfunctions. In this case, an experienced foreman will immediately determine what the problem is and that on the JF414E automatic transmission, the repair will consist in cleaning the valve contacts and, in general, in checking the operability of the transmission electronics.

Video (click to play).

Oddly enough, but it is the wiring that is the weakest point of this box. Apparently, the quality of the Russian car assembly affects. The most common faults are:

Oxidation of solenoid contacts;
Violation of wire insulation;
Broken wires and cable ties.

Fortunately, all of these faults are easily remedied. The main thing is to understand the reason for the automatic transmission failure and this is done by the method of computer diagnostics of the car.

The difficulty here is as follows: the VAZ ECU does not have the function of storing transmission errors, therefore, if these errors appear and disappear, it turns out to be impossible to calculate the faulty unit, guided by the information received from the control unit. The malfunction has to be literally "caught", which is not so easy to do in a car service.But the master can't ride with the owners of the car, waiting for the box to "fail"?

Therefore, the masters solve this problem in a very original way: the car is installed on a lift - so that its wheels do not touch the ground - and in this position the transmission is tested in all modes - from idle engine speed to reverse gear. As a result, the breakdown manifests itself in one way or another and the master finds the faulty unit.

In addition to the wiring, it may turn out to be a valve body that is out of order due to the same low-quality oil. So, oil clots, coupled with contaminants that have got into the transmission fluid, clog the valve body channels through which oil circulates, as a result of which failures occur when switching to a particular gear. Repair of the automatic transmission of Grant in this case consists in disassembling the valve body and thoroughly flushing it.

Simultaneously with cleaning the parts of the valve body from contamination, the master carries out their defect identification, that is, determines which of them have undergone excessive wear. If there are too many of them, then the repair of the automatic transmission may be simply unprofitable and for Grant's automatic transmission, the replacement will, from an economic point of view, the optimal solution.

As an alternative to the original VAZ automatic transmission, a four-speed automatic transmission Aisin, similar in its parameters, can be installed on a car. True, it costs a little more than the Jatka one, but if you are traveling in your car across Europe, such a replacement is quite logical. Indeed, if Grants had a transmission breakdown not in Russia, it would not be easy to find the spare parts required for its repair in European countries.

Lada Granta uses a 4-speed automatic transmission from Jatco JF414E (AY-K3) with electronic control.

The automatic transmission has a torque converter lock-up mode in 3rd and 4th gear. It is determined by the drop in revolutions in the corresponding gears.
There is overheating protection, which is triggered above 114C, while the "gear" lights up on the tidy, but you can go, everything below is considered the norm.
At negative temperatures, it is recommended not to start driving right away, you need to hold the car with the brake and drive the selector in all modes for at least a couple of minutes. The box is warmed up by the engine and when driving with a lock. Until the box warms up, higher gears (4th to 40C) and blocking of the gas turbine will not turn on.
The automatic transmission is controlled by its own ECU in a sealed case, it is located on the left under the headlight in the direction of travel. The box ECU interacts with the engine ECU and other nodes via a common CAN bus.
Only the Parking mode is mechanically activated, other modes are activated by the ECU. You should not turn on the Parking lot with significant slopes and other loads, it is better to use the handbrake.

Button “O / D OFF” (Overdrive Off) in the on state prohibits the connection of the fourth, highest gear. When the button is pressed, the automatic machine is three-stage. In the normal (main) automatic transmission mode, the car loses a little in dynamics, but the fuel consumption decreases.

When it is recommended to use the main mode (O / D ON):
1.with uniform movement at high speed (on highways, on high-speed sections)
2.at speeds above 70 km / h (fuel consumption decreases, revs drop)
3.Many generally recommend never turning off O / D, except for those cases when quick acceleration is required (for example, to overtake someone or actively drive through the city during rush hour).

Lada Granta is a new modern car that recently rolled off the assembly line of AvtoVAZ. The newest Lada Granta automatic transmission problems are still in test mode. The machine is equipped with two types of gearboxes. The first is a mechanical, 5-speed, differential, equipped with a main gear. Other models are equipped with an automatic transmission.

Of course, many drivers are always interested in what problems may arise with the car and its parts.Today, on the roads of our country, Lada Granta is more and more noticeable. Repair of the automatic transmission installed on the Lada Granta is becoming quite relevant. We can say that the automatic transmission is one of the most expensive parts of a car. Replacing an automatic transmission on a used car sometimes costs almost half the price of the Lada Grant itself.

In older cars, frequent breakdowns involve the gearbox. This is the weakest link. The automatic transmission may fail at any time. Box repair is always very difficult and time consuming, it is expensive. However, if you provide Lada with proper care, then her automatic transmission will work reliably and will not require repair for a long period. Most of all, the automatic transmission is afraid of overheating.

This often happens under heavy load. When Lada Granta is in an overheated state, the oil seals get very hot. Gaskets begin to leak due to loss of elasticity. Deformation of automatic transmission parts occurs, they quickly break. As a result, this reliable unit requires major overhaul.

You can diagnose automatic transmission malfunction while driving

Failure of the automatic transmission or its malfunction is quickly detected when the car is moving. The first characteristic signs are:

strong jerks;
the transfer does not turn on;
oil flows;
the indicator flashes.

These signs require immediate attention and repair. Some malfunctions of the gearbox of the Lada Granta car can be eliminated by an experienced motorist. Basically, we are talking about the simplest operations:

elimination of oil leakage;
spontaneous gear shifting.

Perhaps the problem lies in the connection of wires and contacts. Repair of the Lada Grant box will come down only to cleaning the contacts.

Is it possible to tow a car with automatic transmission? Many believe that it is impossible to tow a broken Lada Granta on a cable. This is true, but towing is possible under certain conditions.

If you drive at a speed of no more than 50 km / h at a distance of 25 km, then the front-wheel drive Lada Granta car will feel great. One hour after cooling down, you can continue towing. Four-wheel drive vehicles cannot be towed.

Most often, motorists have to deal with frequently occurring characteristic malfunctions.

The car does not move forward. Moreover, the inclusion of reverse gear does not cause problems. The cause may be a breakage of the friction discs or a ruptured piston cuff. Perhaps the O-rings have broken or the valve that regulates the gearshift is simply jammed.

To cope with the defect, it is necessary to replace and install other clutches. Replace all oil seals and install other O-rings. In addition, the valve needs to be cleaned.

If Lada Granta is unable to move backward, there is no third gear, it means that the clutch that regulates the forward movement has failed, or the cuff attached to the piston that includes the forward travel has broken. In addition, if severe wear appears, then the sealing rings, the front clutch have been destroyed, or the splined mechanism that secures the sun gear has simply been cut off.

The repair consists in the fact that it is necessary to install other friction discs and install new oil seals, install new O-rings. All unusable parts must be replaced.

It happens that it is impossible to turn on the reverse gear. This means that the brake band has completely worn out or the cuff has broken. A malfunctioning piston rod must also be considered.

The repair consists in replacing the brake band, cuff and the rod itself.

It happens that there is no movement. This can cause the following breakdowns:

the hydraulic transformer is out of order;
the oil pump has failed;
insufficient amount of oil;
the filter mesh is clogged.
the friction discs are broken;
defect in the brake band;
the cuff is torn;
O-rings are broken;
the valve responsible for the first speed is stuck.

In this case, a new hydraulic transformer must be installed.If the matter is in the oil pump, you need to remove the bolts securing the GT, together with the flywheel. Between them it is necessary to install spacers with a thickness of 2 mm. Tighten the bolts dead.

It is necessary to start the car, add oil to make the volume correspond to the upper limit, flare the filter. Thoroughly flush the mesh; if it becomes unusable, install another filter.

You can dismantle the brake band, install a new one. Install other discs on the brake clutch. Put on good cuffs. Fit new O-rings and clean the valve after disassembly.

Sometimes the car is stationary, but when the gear is engaged, a strong jolt is felt. The car slips and continues to stand. This means that the hydraulic transformer has broken or the volume of automatic transmission oil is too low. The oil filter may be clogged. You just need to install a new torque converter and just add gear oil to the correct level. And, of course, clean the filter.

The car moves backward, but only first gear can be engaged to move forward (the rest are missing). This means that the control valve located on the centrifugal speed lever is stuck; the teeth of the helical gear of the gear shift axis are broken; cut off the cotter pin holding the helical gear on the switch axis, or simply jammed the valve responsible for the operation of the speeds.

Flush and clean the valve, install a new gear, and mount a new derailleur. Insert a new cotter pin and clean the valve system.

During normal driving, when you have to move on a long ascent, turning on the last speed, the car slips. Downshift engages prematurely. This means that very little oil is poured into the gearbox, the cuffs are worn out and there is significant wear on all O-rings, the disks have stopped working.

It is necessary to fill in the correct amount of oil and replace all broken parts with new ones.

If the speed lever is set to "N" and the Lada Granta continues to move, then the cable adjustment is incorrect and the drive lever does not work well. The piston clutch may have jammed or the discs may not come off the plate due to long towing.

It is necessary to adjust the drive cable and repair the clutch block. Remove all broken parts, replace, install others.

The speeds are switched at high revs - it means that there is a poor setting of the cable that controls the operation of the throttle mechanism, or the centrifugal regulator is jammed. Maybe dirt has got in and the filter mesh is clogged or the throttle valve is stuck.

It is necessary to adjust the cable, blow out and clean the valve. Install another filter and clean the entire valve system.

When the accelerator pedal is pressed sharply, there is no lower gear, the so-called kickdown. There may be several reasons:

The pressure sensor stopped working.

To eliminate the malfunction, you will have to replace the pressure sensor

It is necessary to install a new pressure sensor and a new switch. Clean the changeover valve and replace any broken wires. Then adjust the throttle cable.

If it is not possible to brake with the engine when the second speed is turned on, it means that the brake band does not work and the sealing collar is broken. The modulating valve may be stuck.

In such cases, it is simply necessary to install a good brake band and other piston seals. Next, clean the valve system. That's all.

When shifting gears, the clutches slip. This means that the filter screen is clogged or the oil volume is insufficient.

In this case, you need to install a new filter, add oil. The filled oil must exceed the upper level. A new clutch can also be installed.

There is a grinding noise where the differential is located.It is not functioning the driven gear of the main differential and the teeth of the drive gear are broken. Probably, there was an increased wear of the bearings and a much increased clearance on the axle, a differential play appeared.

Here you just need to replace the differential and install new bearings.

If the reverse gear does not turn on and the second and third speeds are absent, it means that all the splines of the drum on the sun gear have been cut off. You just need to install a new drum.

Small aluminum shavings on the bottom of the vehicle indicate the presence of a malfunction.

If the bottom of the pallet is strewn with fine aluminum shavings, then there may be several reasons: the sliding bearing collapsed, the aluminum sleeve located in the planetary burst. It is possible that there is also a large backlash in the seats of the differential bearings.

It is necessary to replace all the unusable parts and half of the case, where the broken socket was formed. If the pallet magnet is covered with small rollers, then the roller bearing on the planetary gear is out of order. It is necessary to install a new bearing.

There is also such a problem when the oil poured into the automatic transmission begins to foam. Its color changes. Vehicle slip appears. This means that water has entered the box. There was a mixing of oil with water, a foamy emulsion was formed. The oil pump stopped working, the emulsion heavily clogged the filter.

The sealing of the radiator tube may have broken. Antifreeze mixed with oil. The resulting reaction formed a foamy mass that clogged the filter screen. It is enough just to rinse the automatic transmission parts and inspect the radiator. If it is impossible to repair it, it must be replaced.

Thus, there are a lot of breakdowns. It often takes a lot of time to eliminate them. However, if you know the reasons for their occurrence and the basics of repair, then you can cope on your own.

Supplier Automatic transmission Lada Granta became the famous Japanese company JATCO. For those who are not in the know, transmissions of this manufacturer are installed on almost all popular car models: Mazda, Nissan, Toyota, Subaru, Suzuki, Volkswagen, BMW, etc. Now Lada Granta has also appeared in this list.The first Lada cars with automatic transmission rolled off the assembly line in 2012, at the same time their sale started. The cost of the car was about 400 thousand rubles. For this money, a motorist gets a car with a 1.6-liter engine and 98 horsepower. Image - DIY repair of automatic transmission lada grant

The process of integrating the Japanese gearbox with the Togliatti Lada engine was very difficult. To coordinate the operation of these units, domestic engineers had to turn to their Austrian colleagues for help. Many settings of the Japanese automatic transmission had to be abandoned, since the box with them was too slow. As a result, VAZ specialists, together with the Austrian company AVL, nevertheless managed to eliminate all the flaws in the system and successfully make friends with the JATCO transmission with the Lada engine.

Today, about 50,000 cars are sold annually Lada with a gun... In addition to Grants, later the automatic transmission was also installed on Kalina. Needless to say, the reliability of the JATCO transmission itself, if it is equipped with many world famous car models. According to the results of numerous test drives and owner reviews, it can be stated that the quality and reliability of automatic transmission Grant provided at a high level. The domestic auto industry has finally managed to create a really high-quality product.With the installation of an automatic transmission, the factory assembly of Grants has undergone some changes. So, due to the increase in the weight of the car, stiffer springs were installed. The ground clearance also decreased from 160 mm to 140. Scheme of an automatic box Lada Lada Grant box has automatic transmission operating modes, which are classic for the "automatic machine":D - moving the car forward2 - forward movement limited to 2nd gear1 - forward movement limited to 1st gearA reliable automatic machine from the Japanese manufacturer JATCO, model JF 414E, is installed on Grant. What is noteworthy is that this unit is installed on the Nissan Almera and March, which have an engine capacity of up to 1.6 liters. There have never been any serious complaints about the JF414E, which is why AvtoVAZ engineers made a choice in its favor. The valve body is quite reliable and not very common in service shops. All you need is to change the oil and filter on time, although officially this is not necessary, but we still recommend.It is still difficult to find reviews of owners on the network who have passed at least 100,000 km, because often this indicator speaks of the reliability of the box. Nevertheless, we have collected several reviews on Lada Granta automatic transmission (click on review to open full size).It is indicative that Avtovaz does not independently carry out warranty repairs of the JATCO gearbox. The transmission is completely changed to a new one, and the faulty box is sent to the manufacturer for diagnostics and elimination of the breakdown.The developments of AVTOVAZ do not stand still, and in 2013 the company's management, together with the design department, decided to switch to a new type of transmission with a cable drive. These gearboxes are installed on Lada Granta and Kalina 2 cars. Image - DIY repair of automatic transmission lada grant

Unlike the conventional gearbox, the cable-operated gearbox has received some improvements and upgrades.

Gearbox VAZ-2181 with cable drive

In order to understand how everything works, let's compare the standard gearbox with the VAZ-2180 marking and the new VAZ-2181:

To reduce the vibration emitted by the traction gearbox, cables from the manufacturer Atsumitec were installed.
To reduce the effort for shifting 1st and 2nd gear, the manufacturer installed multi-cone synchronizers.
The size of the clutch has increased to 215 mm.
Due to the change in the transmission design, the starter had to be positioned along the engine, and not the gearbox.
To facilitate gear shifting, it was necessary to reduce the bevel angle of the synchronizer teeth from 125 degrees to 100.
To eliminate the oil leak, the designers moved the gear selection mechanism to the top. But, this nuance gave impetus to the development of a new switching scheme and design changes.
The volume of the lubricant to be poured has decreased from 3.3 liters to 2.2 liters.
A selector plate has been installed, which allows for clearer gear shifting.
The transition from mineral oil to semi-synthetic oil has been completed.
In order not to accidentally engage the reverse gear, a special lock was developed.

The main elements and components that go into the device of the new gearbox can be seen in the figures below:

Gearbox diagram and decoding of its main elements

main gear drive gear;
secondary shaft;
input shaft;
fifth gear inclusion fork;
fork for engaging third and fourth gears;
reversing light switch;
clutch housing;
gear shifting mechanism;
central locking device.

The device of the VAZ-2181 box synchronizers

1 - gear wheel of the first transfer; 2 - intermediate rings; 3 - blocking ring; 4 - synchronizer clutch; 5 - hub of the synchronizer coupling; 6 - retainer; 7 - a gear wheel of the second transfer.

1 - gear selection levers; 2 - pin of the selector lattice; 3 - selector lattice; 4 - reverse gear blocking mechanism; 5 - central three-dimensional plate.

Full view of the gearbox with a cable drive

Thus, the manufacturer decided to improve and modernize the gearbox, which was not reliable and had a lot of problems. Thanks to a new and improved system, vibration in the body and gearshift knob has been reduced. The transmissions will turn on, they started more clearly, and huge backlashes disappeared.

As you know, gearbox analogs are rarely produced, and even more so for domestic cars.

Therefore, there is one catalog number for the Lada Granta cable-driven gearbox - 21810-1700012-00.

Dismantling the gearbox with a cable drive Lada Granta will require a lot of tools.The main one is a set of keys and heads of different sizes.

So, let's proceed to disassembling the gearbox:

First of all, as in any repair, we clean the part from dirt.
We unscrew the clutch housing mounting studs.

We unscrew the plug of the fork retainer for engaging the reverse gear

We take out the retainer spring from the crankcase hole

Using a magnet, remove the retainer ball

We unscrew the nut securing the rear cover of the gearbox housing

We unscrew the bolt securing the clutch release cable bracket

We unscrew the nuts securing the rear crankcase cover

By tapping with a plastic-tipped hammer or a conventional hammer through a soft metal mandrel on the lid lugs

Hit the fork through a soft metal drift

Turn off the shaft nuts with a 32-inch head with a powerful knob

Prying the driven gear of the V gear with a screwdriver, remove the assembly

Remove the synchronizer plate

Dismantling the gear, after prying it

Unscrew the plate mount

We unscrew the three plugs of the clamps of the gear shift forks

We extract the balls of the retainers with a magnetic screwdriver

Insert a screwdriver to raise the crankcase

Using a screwdriver, remove the stem lever from engagement in the gearshift mechanism

Dismantle the reverse gear

We unscrew the three bolts securing the gearshift mechanism

Removing the gearshift mechanism

Disassembly of the gear selector

We extrude the outer ring

Removing the outer ring

Now the cable-driven Lada Granta gearbox is completely disassembled, and you can determine the parts that need to be replaced.

Often, gearbox malfunctions have a characteristic sound that determines the breakdown area, but there are other factors that serve as signals for unit repair. Consider the main malfunctions and how to fix them:

Adjustment of the cable drive of the Lada Granta gearbox is absent according to the technical documentation of the manufacturer. The only adjustment option, which the motorists themselves came up with, is that you can tighten the cable a little if they sagged or succumbed to wear. Another adjustment option is the "popular" pushing back of the cable attachment, but this method is not always effective.

Cables for replacing the gearbox drive VAZ-2181

Based on the above, it is recommended that if the cables fail, replace them. A scheduled technical replacement should be performed once per 100,000 km of run. If there is a guarantee for the car, then it is not recommended to be smart and contact a car service for troubleshooting.

Consider the interesting facts that we managed to learn about the new Lada Granta gearbox:

The VAZ-2181 gearbox will not be installed on the Prioru, since the designers considered that it would not be cost-effective to redo the entire structure of the power units.
The cost of Lada Granta and Kalina 2 increased by 5000-7000 rubles. with the introduction of a new gearbox in the car.
According to the reviews of car owners, the first copies of the gearbox with a cable drive were not entirely successful and had a lot of flaws: vibration became audible after 70-80 thousand mileage, the howling of the gearbox, increased wear of parts, etc. Based on this, the manufacturer made adjustments to the design and improved the characteristics, but many car owners had a negative impression of the VAZ-2181 cable-driven gearbox.
The AVTOVAZ plant continues the development and modernization of a new gearbox, which will become the second generation of cable transmissions. It is planned to install it on the 2nd generation Lada Granta, which is now under development. The designers promise to take into account the experience gained during the development of the first generation and not allow such an oversight for the second time.

It becomes clear that the Lada Granta cable-driven gearbox has become better than its younger brother with rigid rods.Component upgrades have improved performance, reduced vibration and improved gear shifting performance. At the same time, many car owners still express dissatisfaction with increased wear and tear and frequent breakdowns, although the plant promises to correct this shortcoming.

4-speed automatic transmission of perverse arrangement of class "mini" for front-wheel drive - JF414 developed by Japanese Jatco for cars with engines up to 1.6l.

It is on the machine JF414 chose AvtoVAZ for installation on Lada "Grant" .

Except Lada Grant JF414E since 2013 it has been installed on Nissan Almeri and March with engines up to 1.6 liters. In addition, it can be found on rare Ad Van. This transmission is designed as a budget and reliable option for long-term cars. Competitor - Aisinovskie AW60-40. Jatko's classification means - JF414: J - Jatco, F - (Forward) front-wheel drive, 4 – number of steps 14 – serial number of the modification. E - electronic control of switching.

When choosing a vending machine for Grants before tThe Oliatti engineers had the following conditions: - the box had to enter the engine compartment of the Lada and, of course, had to be very simple and very reliable.

Another contender for the hood of the Lada can be considered practically the only competitor: Aisinovsky AW60-40. But Aisin Warner is considered uncompromising in terms of prices and feels confident enough in the market to give special discounts to VAZ. Therefore, the JF414 Ott Jatko variant turned out to be more interesting.

There were, of course, hypothetical versions of American boxes, such as 4F27E, but they are completely uncompetitive in many respects, including political ones.

Among the German boxes, the ZF 4HP14 would fit the Lada. But a German gearbox with high reliability is quite expensive, and ZF itself is not very active in the market for machines of the "mini" and "micro" class. Therefore, the marriage between “Grants” and “Jatko” seems to be a completely natural choice.

The only drawback of the Jatk box is the narrow market for this class of machines. With the advent of variators, fewer and fewer manufacturers install reliable, but expensive stepped gearboxes on micro and mini cars, and more and more often choose a cheap and less resourceful variator. In addition to the VAZ, this box was put on the Nissan March for some time, but soon they switched to variators, leaving VAZ the only consumer of this machine.

For the JF414E, all modern electronics were used to control the valve body and torque converter, including linear (PWM) solenoids-electric regulators to control the shift hydraulics with minimal power gap.

In general, the JF414 box was designed by Dzhatko according to VAZ's terms of reference in order to be “indestructible” and survive the car itself. A typical case of reinsurance, when a viral myth about the "fragility of a machine" is widespread among buyers.

The next generations of automatic transmissions for this class of car will have a choice between used Dzhatkov CVTs and European DSGs with dry clutch (AMT), which are cheaper and live brighter (for acceleration and fines), but a short life.

Oil and filter change

The first service of the machine is oil change. Although the oil is considered irreplaceable, but (about burnt oil) with frequent overloads of the machine, the oil soon becomes dirty and opaque and requires replacement. JF414 itself is very unpretentious to oil and allows the use of not only the original Matic-S (EJ-1 ATF), but also non-original analogs such as Dexron VI. Although automatic transmission electricians say that the settings of the JF414 solenoids and valves are sensitive to the type of oil.

The oil is checked (for quality and quantity) with a dipstick at operating temperature and topped up through the same hole. Some masters check the level and quality of the oil through the overflow pipe by unscrewing the sump plug. The oil change is carried out by means of several partial changes. An oil change should be done with the help of specialists with experience in automatic transmission repair or after studying the oil change process in detail.There are important features.

JF414 filter - open metal with metal mesh - 327010. Our masters rarely change such a filter at the first oil change, flushing and cleaning the filter solve the main problems. The oil is changed first after 80-100 tkm of run, depending on the loads during operation and, as a consequence, on the degree of oil contamination, but usually by this time the oil still retains its “working” transparency.

Masters install on aged cars with worn-out iron in series to the coarse filter - external fine filter - 100019. The main filter is located outside the box and access to it for inspection and replacement is maximally facilitated.

The in-line magnetic filter helps keep the oil clean and slows down component wear. This is recommended for all vending machines with a standard filter with a metal mesh. More details - here.

The design of the "iron" of this box was simplified as much as possible according to the tourist principle: "nothing superfluous", but in the first year of running in, the first "childhood diseases" of this machine appeared:

In the early years, the craftsmen complained about the needle bearing between the pump hub and the High package - # 327227, which, due to design flaws, clamped until completely destroyed. The size of the bearing can vary in thickness - (41.5 x 59 x 3.58). This problem was successfully solved in the first years of running in.

Dzhatko's design assumes a large margin of safety, but the VAZ electronics engineers did not tweak the computer settings, forbidding the driver to kill the box with the gas pedal. Therefore, the driver can drive up to 200-400 tkm without overhaul, or he can kill the clutches with a kickdown by the end of the warranty period. Overhaul does not mean the end of the resource at all, the box itself is traditionally indestructible for Dzhatko and can travel up to its million km, subject to simple rules of operation and repair.

Parts for bulkhead and overhaul.

Pick up repair kits - press the button on the left.

Overhauls of this machine are usually associated with the bulkhead, cleaning and replacement of consumables - gaskets, oil seals and clutches. Sets of gaskets and seals (below) – 327002 .

Clutch kit - 327003. Steel disc set - 327004. Rubberized piston kit - 327008.

Repair kits for gaskets and oil seals for this simple transmission - No. 327002, are rather poor in components, do not have valve body gaskets, which Jatko has incredible mileage, and are ordered for the Teflon O-rings, pallet gaskets and rubber seals that do not like burnt oil.

The period for replacing consumables and box bulkheads is the shorter, the more aggressive driving style and frequent overheating, especially in summer. Determined by the automatic transmission masters when removing the pallet during oil change.

Most often, they order Repair Kits from ATOK and Overol Precision, which is approximately equal in configuration. →

Usually, the order for overhaul includes clutches instead of worn ones:

– Clutches separately: - 327106, 327108, 327110, 327114.

- A set of clutches - 327003. They are ordered with each overhaul, and not only when one of the packages burned out and the burnt oil soaked the rest of the clutches.

With the change of the clutches, the Teflon rings must be changed due to the wear of which from dirt and pressure losses in the bags occur. The first packet to burn is Forward (327108 left), if you continue to drive with slipping clutches, then the steel discs 327128 burn, and at the very end the Forward drum itself - 327554. When changing clutches, be sure to check all O-rings and Teflon rings of this drum, due to wear of which there is not enough oil pressure on the pistons.

In half of the cases, together with a set of clutches, a set of steel discs is also ordered - 327004.

– Brake band: - No. 327020 - similar to the tape of its predecessor RE4F03A.

It should be changed if the friction lining is soaked in burnt oil, more details.

From "iron" during overhaul, there is a replacement of bearings.

The most popular replacement is the double row center bearing - 327248. It breaks down by overloading and driving with vibrations at high speeds.

Needle bearings of different thicknesses are often ordered: - 327227.

– Oil seals - related to JF403 (pump - 327070) or JF506 (axle shafts - 327076). Together with them, it is often necessary to change the pump sleeve - 314034. Interchangeable with Nissan 3 and JF506.

The pallet gasket is changed every time the pallet is removed - 327300.

The pallet is usually ordered for replacement instead of the broken one - 327765. The pallet bolts are recommended to be tightened to 7.9 Nm.

Valve body JF414 - quite reliable and rarely found in replacement - 327740.

Consumables in the valve body are gaskets and solenoids, which have not yet been replaced. Operation with dirty oil and eaten clutch of the torque converter and especially overheating can reduce the service life of solenoids-electric regulators and valve body gaskets several times.

On the hydraulic plate there are 5 linear solenoids-electric regulators and one solenoid-valve “On-Off”, which includes the lock of the torque converter. These Jatko solenoids have a very decent resource and, with a timely oil change, serve the entire service life of the machine until overhaul.

The weak point of the Jatko hydraulic units are usually the sensors and the ROM electrical board, which are on the plate (right-top). They also hate dirty and hot oil with steel crumbs. Therefore, when changing the oil every other time (every 120-160 tkm), it is recommended to make a complete oil change with removing the sump and cleaning the magnets from steel hedgehogs.

The electrical board is sensitive to power surges, so all work with “lighting” and disconnecting the battery is best done only by electricians and only in case of emergency.

The computer adjustments here are made quite sparingly for the packages and for locking the torque converter, which connects at the very end of 3rd gear and 4th, which allows the lock clutch to live for a long time.

Video (click to play).

Price (retail), availability can be viewed and ordered in the online store by clicking the part number on an orange background .

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