Gearbox jh3 or jr5 how to determine?

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In 2012, AvtoVAZ announced the start of production of a new small car, Lada Largus. The model is actually a version of the first generation Dacia Logan MCV for the domestic market. It is considered a joint project between AvtoVAZ and Renault, based on the B0 platform. In 2022, the car underwent a light facelift, as a result of which the radiator grille was updated, and the Lada nameplate was removed from the rear of the car. There were no serious modifications to the car. The basic idea was retained; the Polish car is quite popular and is in high demand among car enthusiasts. The model is equipped with a 1.6-liter gasoline engine. But we’ll tell you further what gearboxes are installed on the Lada Largus.

Boxes Lada Largus

Auto
Lada
Largus
checkpoint

During its production, three different gearboxes were installed on the Lada Largus:

5-speed Renault JH3	classic mechanics with lever control drive
5-speed Renault JR5	classic mechanics with cable drive control
5-speed manual transmission VAZ 21809	AvtoVAZ transmission replaced foreign manual transmission

Renault JH3 - manual transmission Lada Largus 1.6 8v

Five-seater Largus modifications with an 8-valve K7M engine were equipped with a JH3 gearbox. This is the simplest five-speed manual transmission in the Renault range. Here, the control lever drive and synchronizers are only on forward gears, and the manual transmission clutch is driven by a regular cable, without any hydraulic drive.

The box is reliable and worries only about small things, such as play in the lever or leakage from under the rod. But the manual transmission also has one weak point: the role of the left drive oil seal here is played by the boot of the internal tripod, which tends to wear out quite quickly and leak. And if you don’t notice the leak in time, then you can somehow leave the box completely without oil.

Gear ratios of the JH3 540 manual transmission (5-seater station wagon with K7M engine):

home	1st	2nd	3rd	4th	5th	Rear
4.214	3.727	2.048	1.393	1.029	0.820	3.545

The online manual for Largus boxes is here

What will be needed for replacement?

First of all, you will have to buy a set of 5th gear gears for replacement. At Logan-Shop.SPb such kits are available in two versions - with a gear ratio (u) of 0.756 or 0.738.

If you do everything yourself, then you will need a set of sockets (from 10 mm to 27 mm), a wheel wrench for removing the wheel, a hammer and a lot of small things (which are found in any garage).

It is advisable to have a lift - this will greatly simplify the process.

It would also be very useful to have special pullers for gears. However, such a tool, as a rule, cannot be found on open sale, and not every car service center has it. At Largus-Service this type of work is carried out using just such pullers. Of course, a simple puller with two or three legs, which can be bought at any auto parts store, is also suitable. But if you lack experience, you can accidentally damage gearbox parts.

In this article we will look at the process without the use of special tools.

Renault JR5 - manual Lada Largus 1.6 16v

The seven-seat modifications of the station wagon and versions with 16-valve internal combustion engines were equipped with the JR5 gearbox. This is a more advanced mechanics designed for high torque engines. There is already a cable drive for controlling the transmission, and there is also a hydraulic clutch.

In terms of reliability, it has no special problems and with regular replacement of lubricant, the gearbox lasts a long time. However, if you drive on old oil for a long time, the shaft bearings will hum, and then completely fall apart, and their rollers will get into the differential and the transmission will jam. Also on the specialized forum there are complaints about lubricant leaks and freezing of control cables.

Gear ratios of manual transmission JR5 551 (7-seater station wagon with K7M engine)

home	1st	2nd	3rd	4th	5th	Rear
4.500	3.727	2.048	1.321	0.971	0.795	3.545

Gear ratios of manual transmission JR5 549 (station wagon 5 and 7 seats with K4M engine)

home	1st	2nd	3rd	4th	5th	Rear
4.214	3.727	2.048	1.393	1.029	0.892	3.545

Gear ratios of manual transmission JR5 517 (van with all power units)

home	1st	2nd	3rd	4th	5th	Rear
4.928	3.727	2.048	1.321	0.971	0.738	3.545

Engines and transmissions

It just so happens that most Lada models have one common engine - a 106-horsepower 1.6-liter sixteen-valve engine. By the way, this is the only Largus station wagon.

Three engines are installed on Grant:

eight-valve 87-horsepower, coupled with a five-speed manual gearbox;
16-valve 98-horsepower engine, paired with a four-speed automatic transmission;
a basic 106-horsepower power unit, which can be equipped with either a manual transmission or a five-speed AMT robotic gearbox.

Note that the first two engines for the universal Granta will be rather weak, and the 106-horsepower engine does not demonstrate much agility - in order to quickly accelerate, you will need to spin the engine to 3 thousand revolutions or higher. But even when fully loaded, Granta will not have problems moving in dense city traffic.

The advantage of this unit is its high elasticity, which allows you to move at low speeds without bothering to change gears, and this feature is clearly manifested also on Largus.

As for the five-speed manual, even after a number of upgrades it is not distinguished by good accuracy and selectivity. The robotic gearbox, being an improved mechanics, also does not demonstrate miracles, but has several modes that both beginners and experienced drivers will surely enjoy.

So it is incorrect to compare Largus and Granta in terms of power unit - the latter model simply has a quantitative advantage.

VAZ 21809 - modern manual transmission Lada Largus

In 2022, a station wagon with a 16-valve internal combustion engine VAZ 21129 received a domestic gearbox 21809. This is a modern 5-speed manual transmission with a cable drive control, but without a hydraulic clutch, equipped with reliable multi-cone synchronizers in first and second gears.

Due to the relative novelty of this manual transmission, comprehensive breakdown statistics have not yet been collected. On the forums you can find complaints about transmission noise in a certain speed range, difficult shifts due to premature wear of synchronizers and oil leaks. Owners also note extraneous noises and knocking in the gearbox at idle engine speeds.

Gearbox Lada Largus: design and features

Lada Largus is a popular car from the largest passenger car manufacturer in Russia, AvtoVAZ. The car is actually a Russian copy of a French car (a joint project between Renault and AvtoVAZ on the B0 platform).

The manufacturer offers the model in several versions: 5-door station wagon (five-seater), minivan, etc. Largus is equipped with four gasoline engines and manual gearboxes JH3 and JR5. Next, we will look at what features the Largus gearbox has, as well as what a manual transmission is on this car.

Gearbox Lada Largus: features

The manual transmission of the Lada Largus car is a five-speed gearbox. The box effectively transmits torque from the internal combustion engine to the driving front wheels, while ensuring clear and smooth engagement of the selected gear in accordance with the speed limit.

As mentioned above, manual transmissions on Largus can be units with the index JH3 and JR5. The JHZ five-speed manual transmission model is installed on Lalgus cars with the K7M engine. Cars of this brand with other power plants are equipped with a JR5 manual transmission.

Structurally, these boxes are similar, however, some elements of the clutch release and gear shift mechanisms, as well as the design for connecting the drive wheel drives, are somewhat different.

Features of the manual transmission version JHZ:

the unit for turning on and off the gearbox clutch is a clutch with a bearing, moved along a guide sleeve by a fork, which is acted upon by a cable connected to the clutch pedal;
The gearbox is controlled using a rigid rod;
The gear ratios between the primary and secondary shafts are different from the gear ratios of the JR5 box (gears: I-3.72 II-2.04 III-1.39 IV-1.02 V-0.79 reverse-3.54 main-4 ,21).

Distinctive features of the manual transmission version JR5:

the unit for turning on and off the gearbox clutch is a hydraulic working cylinder, combined with the clutch release bearing and through a pipeline connected to the main cylinder, the rod of which is affected by the clutch pedal;
The gearbox is controlled via two flexible cables;
the gear ratios between the primary and secondary shafts will differ from the gear ratios of the JHZ box (gears: I-3.73 II-2.05 III-1.32 IV-0.97 V-0.82 reverse-3.55 main-3 ,73).

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Source

Lada Largus: gearbox and device of JH3 and JR5 models

The units are made according to a two-shaft design. Manual transmissions JH3 and JR5 have synchronizers for all forward gears, combined with a differential and final drive with a common housing.

Inside the housing of both manual transmission models, made of aluminum alloy, there is a primary shaft with a set of drive gears and a secondary shaft with driven gears located next to it.

Like many other manual transmissions, the Largus box of the JH3 and JR5 models has a clutch fork, gearbox housing, clutch housing, filler plug, speed sensor, manual transmission control lever, gear shift lever, breather, gear shift mechanism, etc.

Main components of the JH3 manual transmission control drive:

backstage;
gear shift lever with a ball joint secured with nuts to the base of the body;
manual transmission control drive rod;
mechanism rod installed on the crankcase, etc.

As for the JR5 manual transmission control drive, the following elements can be distinguished:

backstage;
two flexible cables;
gear shift mechanism installed on the gearbox housing;

At the same time, even taking into account some differences, both types of gearboxes on the Lada Largus have proven themselves to be quite reliable and repairable units.

Replacing the fifth gear gear on Largus with your own hands

It is quite difficult to repair a gearbox with your own hands, so experts advise doing it at a service station. However, due to the design features of the gearbox and its location, replacing the 5th Largus gear can be done independently if you have certain skills and experience.

To do this, you must follow clear instructions:

Before you begin removing the gears, you need to secure them. To do this, pull the fork towards you and use a special mandrel to knock out the fixing pin. Then you need to return the fork to its original position and engage third gear, recessing the rod next to the fork. After this, pressing on the fork, we engage second gear - now the shafts are fixed.

In the final stage, loosen the bolt securing the gear on the secondary shaft, then unscrew the nut securing the gear on the input shaft, remove the retaining ring and unscrew the already loosened mounting bolt. We dismantle the fork along with the fifth gear clutch. Using a special puller, remove the drive gear, and similarly dismantle the gear on the secondary shaft. Having replaced a set of new gears with the desired gear ratio, we carry out the installation strictly in the reverse order.

It is important to remember that after installing all the removed parts, you should fill the gearbox with oil in accordance with the vehicle's operating instructions.

What's the result?

The design of the gearbox installed on the entire Lada Largus model range, regardless of modifications (JR5 or JH3, etc.), is quite modern and reliable. As a rule, these manual transmissions rarely fail.

If malfunctions and breakdowns of the manual transmission occur (gears fly out or do not shift, noise or crackling noise occurs, etc.), then comprehensive diagnostics should be carried out to identify malfunctions.

Repairs should also not be delayed, since the design of the box is complex; one malfunction can lead to another. It is recommended to immediately contact a service station, where experienced specialists will be able to quickly and efficiently eliminate existing problems.

Gearbox for Lada Vesta: types of manual transmission Lada Vesta, robotic gearbox Lada Vesta. Changing the oil in the Lada Vesta box.

Checking the oil in the Lada Granta gearbox: how to check the oil level in the Lada Granta automatic transmission, checking the oil in the Granta manual transmission. Adding oil, recommendations.

Automatic transmission on the domestic GAZelle Next car: features of automatic transmission, advantages and disadvantages of automatic transmission.

Automatic transmission for Renault Duster: Renault Duster automatic transmission and Duster with a robotic gearbox. Features of these types of automatic transmissions for Duster.

Russian cars with automatic transmission: automatic transmissions on models from the USSR, modern Russian cars with automatic transmission. Popular models, types and types of automatic transmissions.

Lada Vesta with an automatic transmission: what type of automatic transmission is on the Lada Vesta, pros and cons. Prospects for the appearance of an automatic transmission or a CVT on Vesta.

Malfunctions

The design of each box is quite reliable and time-tested. Failures or breakdowns are extremely rare, but no one is immune from them. Even an experienced motorist will most likely not be able to independently diagnose the cause of the malfunction, much less make repairs. The design is complex and requires special tools. Therefore, in the case when the gearbox is not working well, the gears are thrown out or are not engaged, and also if it makes a lot of noise during operation, you must contact numerous service stations.

Gearbox jh3 or jr5 how to determine

JR5 gearbox

1 – input shaft; 2 – right wheel drive oil seal; 3 – clutch housing; 4 – gearbox housing; 5 – back cover; 6 – breather fitting; 7 – eye-bracket; 8 – gear shift lever; 9 – gear selection lever; 10 – speed sensor or plug; 11 – bracket for fastening transmission control cables; 12 – left wheel drive oil seal; 13 – reverse light switch; 14 – oil filler plug; 15 – tube for supplying fluid to the working cylinder of the hydraulic clutch release; 16 – clutch release bearing.

The gearbox is two-shaft, with five forward gears and one reverse gear, with synchronizers in all forward gears. It is structurally combined with the differential and main gear.

The gearbox marking is located on the bottom of the crankcase.

The transmission housing consists of three parts: the clutch housing, the transmission housing and the rear transmission housing cover.

The clutch release drive is hydraulic. The clutch release bearing and the slave cylinder are made as one unit, which is attached to the clutch housing with two bolts.

The clutch housing and gearbox housing are cast from aluminum alloy, and the rear cover is stamped steel. The clutch housing is attached to the gearbox housing with screws. During assembly, a gasoline-oil-resistant gasket sealant is applied between the crankcases. The back cover is attached to the box housing with three bolts.

The input shaft is made as a block of drive gears, which are in constant mesh with the driven gears of all forward gears. The gears of all forward gears are helical, and the reverse gears are spur gears. Gears of 1–4 gears are made integral with the input shaft, the fifth gear gear rotates freely on the shaft. The fifth gear synchronizer is installed at the rear end of the input shaft. The secondary shaft is hollow; oil is supplied through it to the driven gears. The shaft contains driven gears and synchronizers for 1–2 and 3–4 gears.

The fifth gear gear is mounted on the shaft with splines. On the clutch housing side the secondary shaft bearing is roller, and on the cover side it is ball bearing. An oil sump is located under the roller bearing of the secondary shaft, directing the flow of oil into the shaft. All parts installed on the secondary shaft are pulled together into a package with a bolt screwed into the end of the shaft from the cover side.

The driven gear of the main gear is installed on the differential box. The differential box contains two satellites and two side gears. The satellites rotate on an axis fixed in the differential box.

The side gears are connected to the splined shanks of the housings of the internal hinges of the front wheel drives.

Gearbox control mechanism

1 – gear selection cable; 2 – gear shift cable; 3 – control mechanism; 4 – gear shift lever; 5 – gear shift lever cover; 6 – gear shift lever handle.

The gearbox control drive consists of a control mechanism installed in the vehicle interior on the floor tunnel, and a gear shift mechanism located in the gearbox housing. The mechanisms are connected by two cables: selecting and engaging gears.

The transmission control mechanism is secured to the floor tunnel with four bolts.

When selecting one gear or another, the gear selector cable moves the gear selector lever, which, in turn, installs the gear selector in the groove of the corresponding gear shift fork. Once a gear has been selected, the shift cable rotates the lever to engage the desired gear. The shift cable and gear selection cable are not interchangeable.

The breather fitting is a plastic sleeve inserted into the crankcase hole

The gearbox communicates with the atmosphere through a breather located in its upper part.

A hose is attached to the breather fitting, at the upper end of which a plastic tip is attached

During maintenance, the tip on the hose should be turned several times to clean it. The gearbox is filled at the factory with gear oil designed to last its entire service life. The oil level in the gearbox should be at the level of the lower edge of the oil filler hole, closed with a plastic plug.

The article is missing:

High-quality photos of repairs

Source: https://wiki.zr.ru/139-2_Largus

The article is missing:

Partial list of parts and consumables

Have a nice day, everyone. Still, I decided to write another report. The gearbox died for a long time; one of the differential bearings, which is located closer to the right drive, began to hum. The separator fell apart, a terrible vibration and a wild roar appeared. If I had been a little more far-sighted, I would not have sold the donor box, even though the fastenings on it were broken. The option with a used box was also not suitable because... Finding a box with live splines on the axle shaft is another task. It was decided to sort out ours. I started by looking for the differential axle shaft, thanks to airwolf87 for solving this enormous problem. In his report, Seryoga sorted everything out. It turned out to be impossible to find this part; four stores, in one way or another, refused due to lack of part in stock; it took 3 months to wait for answers. For two of them the car no longer drove. By a lucky chance, I found it on Avito in Cheboksary for analysis, in perfect condition and for less than 2,000 rubles. If anyone needs such an axle, they have another one), only it has gone up in price, but nevertheless, 2800 is not 6600 or 8500 or even 10000. During the protracted search and waiting for the diff axle, the remaining parts were purchased, the box was rebuilt and actually lay there for a month waiting for this ill-fated axis. Since it’s not interesting to dive into such vital things as rebuilding the box just because of one bearing and the diff axle, I decided to approach this issue radically, change all the bearings, change the left drive housing (where the tripod is inserted), and carry out a small upgrade of the 5th gear. Unfortunately, I didn’t find any good repair reports, only a couple of videos on YouTube. Basically, I had enough tech. So I decided to correct this situation, I think this report will be useful, but it will not be possible to describe it in an accessible and understandable way in one report, there are a lot of photos and the report will have to be divided into two parts. Ideally, you need to first disassemble the chassis, differentiate the parts and order them. I wanted to buy all the parts from the beginning, and then change everything en masse at once. I thought this would save time, but everything didn’t go according to plan, otherwise as usual.

And so she rushed, temple through the garden...

I'll start with a specific tool, you will need a 50mm head, a good and strong bit (cylindrical piece of iron) with a working part diameter of 3 mm and a length of 40 mm (I used a core). Differential gear retainer (made from a rectangular piece of iron 4 mm thick).

Some modern AvtoVAZ cars are modified models of foreign cars. For example, Lada Largus is a 2006 Dacia Logan MCV adapted for the Russian market. And Lada XRAY is a redesigned Renault Sandero Stepway. And on Vesta they install a French engine and transmission separately. This time we will determine what is better to choose: a gearbox from a VAZ or a Renault?

The JHQ, JH3 and JR5 are five-speed manual transmissions from Renault. Each gearbox is paired with its own engine. For example, the K7M Largus power unit is equipped with a JHZ gearbox, and the K4M is equipped with a JR5 gearbox. Also, the French mechanics JH3 510 can work with the Vesta engine (VAZ-21129, 1.6 l, 106 hp). To determine which transmission is used in your car, just look at the table located on the bottom of its housing.

These gearboxes (JH3, JR5) are largely identical in design, but differ in clutch release units and gear shift mechanisms, as well as in the design of units for connecting the front wheel drives.

Those who previously drove Lada cars with “our” mechanics (VAZ-2180 or VAZ-2181), and then began to use the French transmission, note a significant difference. The gear selector knob is not as loose, and gears shift more clearly. Experts from ZaRulem magazine speak positively about the JH3 and JR5:

From the reviews of Vesta owners with the JH3 510 manual transmission, it can be noted that the gearbox is quieter than the howling cable VAZ-2181, but it still howls. And if in a VAZ gearbox in some cases the hum and howling could be reduced by changing the transmission oil, then with a Renault gearbox this will not work. Transmission fluid is poured into the gearbox at the factory, which is designed for the entire service life of the vehicle (there is no need to change the oil in the JH3/JR5 gearbox according to maintenance periods).

What do you think of the French manual transmission? Should you choose the familiar manual transmission 2181 or AMT from VAZ, or consider buying a car with a gearbox from Renault? Leave your feedback and recommendations on the operation of JH3 and JR5 transmissions. Let us remind you that this is how rattling and knocking noises from this gearbox are eliminated.

Work progress

The work is carried out in the following order:

The first step is to remove the engine crankcase protection. It is secured with six bolts, for which a 10mm wrench is used. If the gear is replaced without using a special lift, then the car must be jacked up from the front left wheel, and then some stable objects must be placed under the body in case the jack collapses "and Largus will fall. After this, the left front wheel and the right front fender liner are removed. After this, the gearbox oil is drained. To do this, use a size 8 wrench to loosen the drain plug and remove it, then drain the oil. After this, the left front shield that protects from dirt is removed, as well as the bolts that secure the power steering pipeline to the support and directly to it. The next step is to remove the connecting rod from the left suspension subframe. To do this, loosen the nut and remove the bolt, then unscrew the rod with a sharp movement towards yourself. The next step is to remove the light wiring from the engine crankcase. To do this, you need to disconnect the high beam connector and remove the wiring from the rear cover of the gearbox housing

It is under it that the fifth gear gear is located. After the wiring is removed, you need to remove the rear crankcase cover, which requires unscrewing the bolts. The cover should be removed carefully, since during removal there is a possibility of damaging the small plastic groove through which gearbox oil is supplied to the gears. In addition, it is necessary to remember how much the fifth gear fastening pin protrudes; during assembly it must be installed in the same way. This is important not only for Largus cars. It must be driven into the fifth gear shift fork using a hammer and a punch. The next step is to block the primary and secondary shafts. To do this, use the gearshift lever to engage the first gear. After that, use the fifth gear fork to activate it.

This procedure makes it easier to remove the input shaft nut and secondary shaft bolt. They are tightened tightly, so you will need a good wrench. After removing them, the input shaft nut is removed. This can be done with a screwdriver. The next step is to remove the secondary shaft bolt. This is best done using a TORX head. After removing the primary shaft nut and secondary shaft bolt, the fifth gear fork is removed. Then the synchronizer gear hub is removed. This is best done using a puller. It is worth noting that categorical care is needed here, since there is a possibility of damage to the gear itself. Then, no less carefully, the remaining parts are removed. This can be done without the help of tools. It is important to remember their location for subsequent assembly of the unit. For the next step, the secondary shaft bolt must be screwed back a few turns. He will have to play the role of support for the puller. The puller itself must be installed so that on one side it rests on the shaft bolt, while its legs go under the gear teeth. If the puller is installed correctly, removing it will not cause any problems. During the process, it will only be necessary to unscrew the bolt by one and a half turns of thread, since during extraction the gear will rest against it. After the fifth gear gear is removed, you need to inspect all parts for faults, as they may need to be replaced. Assembly is carried out in reverse order. First, you should clean the entire gearbox structure from dirt, both outside and inside. It is necessary to clean the splines of the gears and shafts with which they will fit, and then apply a fixing compound to them. The gear is seated and tapped using a rubber mallet. In this case, the blows must be applied along the axis of the shaft, so that it does not warp. The synchronizer clutch should be oriented towards the gearbox housing - the sharp ends of its teeth should be turned in this direction. Before installing the fork, you must engage fifth gear using the lever. After this, to ensure the alignment of the holes, the lever is switched to neutral mode, and the holes themselves are centered using a screwdriver. Then the fifth gear pin is inserted. As stated, it should perform the same as before disassembly. After this, the rear crankcase cover is put on, the wiring is returned to it, which is connected to the rear light switch connector. The connecting rod returns to its place, and its fastenings are tightened. After this, the power steering line, front mudguard, right front fender liner, front wheel and crankcase protection are returned to their place.

Reviews of French manual transmissions jh3 and jr5 (vesta, largus, xray)

At the moment, the French gearbox is paired with a 1.6 liter 106 hp engine. 21129 depending on the configuration. The possibility of installing it in tandem with a Nissan 110 hp engine cannot be ruled out. But whether the JH3 can withstand the high torque of the 21179 1.8L engine is a questionable question.

Motors

Gradually, the “French” were replaced by the VAZ-11189 (8 valves, 87 hp) and VAZ-21129 (16 valves, 106 hp) engines. The cylinder block traces its history back to engine 21083. These engines are more powerful and more economical than French ones, but less reliable. The VAZ-21129 is equipped with hydraulic compensators; on some examples they knock loudly when warming up. Floating speeds and tripping can be caused by various reasons - from sensor glitches and deformation of the throttle valve ring to spark plug failure or clogged injectors. Burnout of valves happens, but is not a system problem. In general, the motors are well adapted to repair and last a long time.

All engines have a weak link - the thermostat, whose failures lead to “underheating” or overheating.

Spare parts, maintenance

Products from the Dustershop77 range that may be of interest to you:

Name	Manufacturer	Price	Availability	Add to cart
BR-001-GARD-URDP	Mud flaps enlarged (widened) Duster-GARD front	Duster-Guard	1300 / 1100 rub. Discount: 1000 rub.	>10
DC495	Discount card (Dusterclubs.ru, Dustershop77.ru)	700 / 500 rub. Discount: 500 rub.	>10
DC218	Air deflector “Warm feet” for Duster, Logan, Sandero, Largus	500 / 300 rub. Discount: 250 rub.	>10
patriot-001-1	Gearbox coupling and gas tank protection (steel)	Patriot	5400 / 4500 rub. Discount: 4000 rub.	>10
005-008502	Trunk sill protection	Russian Artel	1500 / 1100 rub. Discount: 900 rub.	>10
NRD-009102	Frill under the windshield (RA)	Russian Artel	1800 / 1700 rub. Discount: 1600 rub.	5
DC654	Frill with fastening without 3M tape (Duster/Terrano) (ArtForm)	ArtForm (Yuago)	3500 / 2500 rub. Discount: 1900 rub.	>10
R12711	Wind deflectors (window deflectors) COBRA/Autoplex	COBRA/Autoplex	2000 / 1600 rub. Discount: 1500 rub.	>10
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def-001	Hood deflector Vip-Tuning	VIP-Tuning	2000 / 1500 rub. Discount: 1100 rub.	>10

Renault JR5 gearbox problems and reliability

Mechanical 5-speed The JR5 manual transmission is known not only for numerous Renault models, from the European Clio and Kangoo to Megane and Laguna. The JR5 gearbox is installed on Logan, front-wheel drive Duster and Kaptur.

It was also received by Nissan cars such as Note, Qashqai, Juke, NV200 van and others. In addition, it is installed on Lada models such as Largus, X-Ray and Vesta.

It works in tandem with cross-platform engines. With gasoline volumes from 1.6 to 2.0 liters, as well as with a 1.5 dCi diesel engine. It is designed to transmit up to 200 Nm of torque.

To adapt to a particular car model, engineers select suitable combinations of gear ratios. Thus, the JR5 box has more than 50 modifications.

On our YouTube channel you can watch the disassembly of the JR5 124 box, removed from a 2007 Renault Clio 3 with a 1.5 dCi 86 hp engine.

Select and buy 5-st. You can find a manual transmission for a Renault car or a manual transmission for a Nissan in our catalog of contract gearboxes.

Structurally, the Renault JR5 is a conventional 2-shaft manual transmission with a cable-operated rocker and a hydraulic clutch.

Reliability of the JR5

It’s hard to blame the JR5 gearbox for unreliability, although there’s nothing particularly to praise it for either. This is an ordinary and old gearbox, which is not particularly pleasing with the clarity of gear engagement, often hums, and also requires a rebuild or even replacement due to serious damage to its mechanisms and even the body. In general, we will analyze and show all the details that sometimes require attention.

5th gear won't shift

In older modifications of the JR5 gearbox, the 5th gear engagement clutch and the reverse gear engagement mechanism are fixed using two identical locking springs. In rare cases, the reverse gear retaining spring may break. Its fragments can “successfully” fall under the fifth gear fork, which is why 5th gear will not turn off. You will have to disassemble the box to replace the part (No. 8200196579) costing several dollars.

Rear secondary shaft bearing

On early versions of the JR5 box, an unreliable roller bearing with a plastic cage was used on the rear of the secondary shaft. If the separator falls apart, the balls will clump together or even fall out. During operation, the box will at least begin to hum, and in the worst case, the rollers will “scatter” throughout the box and may get caught between the gears. On later versions of the JR5 gearbox, this bearing was replaced with a roller bearing.

Front secondary shaft bearing

With high mileage and operation on old oil (without a single change), there are cases of destruction of the front roller bearing of the secondary shaft. Usually, before such a breakdown, poor engagement and disengagement of 1st and 2nd gears is observed. And if the rollers fall out of the bearing, they will get into the differential and lead to its jamming with very serious consequences. The wheels will jam, and the parts of the destroyed differential and bearing rollers will pierce the gearbox housing.

Differential bearings

The JR5 gearbox differential is supported by two tapered roller bearings. Often their wear leads to a noise from the gearbox while driving.

Differential

In JR5 gearboxes with indexes 008...018, the left axle shaft is connected to the differential through an intermediate axle. This is known as the "differential axle shaft". This is the sore spot of the box. The splines of this axle shaft are seriously worn out and are completely cut off. Of course, in this case the car is immobilized and is unable to move under its own power.

For the JR5 gearbox, this axle shaft is not detailed as a separate part, so it is problematic to buy it new. In fact, this axle shaft comes as a separate part to many other 5-speed units. Renault manual transmissions such as JH3, JC5, JC7 and JB gearboxes (JB0...JB5). You can also buy this “differential axle shaft” at a dismantling station.

How to extend the life of a Renault JR5 box

To extend the service life of the JR5 gearbox, the oil in it should be changed every 50,000 km, although the manufacturer claims that the oil is filled for the entire service life. Elf NFJ oil is best suited for this.

You can choose and buy a gearbox for Renault or a gearbox for Nissan in our catalog of contract gearboxes.

Here, using the links, you can see the availability of specific Renault or Nissan cars at the dismantling station and order auto parts from them.

Technical characteristics of Renault Logan

Version	1.4	1.6	1.6 16V	1.6 16V	1.5DCI	1.5DCI	1.5DCI
Engine	petrol	petrol	petrol	petrol	turbodies	turbodies	turbodies
Volume	1390 cm3	1598 cm3	1598 cm3	1598 cm3	1461 cm3	1461 cm3	1461 cm3
Cylinder/Valve Arrangement	R4/8	R4/8	R4/16	R4/16	R4/8	R4/8	R4/8
Maximum power	75 hp	84 hp	102 hp	103 hp	65 hp	68 hp	86 hp
Maximum torque	112 Nm	128 Nm	148 Nm	148 Nm	160 Nm	160 Nm	200 Nm
Dynamics
Max. speed	162 km/h	175 km/h	183 km/h	190 km/h	155 km/h	158 km/h	167 km/h
Acceleration 0-100 km/h	13.0 sec	11.5 sec	10.2 sec	9.5 sec	15.5 sec	15.2 sec	13.0 sec
Average fuel consumption in l/100 km	6.9	7.3	7.1	7.0	4.8	4.7	4.6

What's the result?

Gearbox for Lada Vesta: types of manual transmission Lada Vesta, robotic gearbox Lada Vesta. Changing the oil in the Lada Vesta box.

Automatic transmission on the domestic GAZelle Next car: features of automatic transmission, advantages and disadvantages of automatic transmission.

Checking the oil in the Lada Granta gearbox: how to check the oil level in the Lada Granta automatic transmission, checking the oil in the Granta manual transmission. Adding oil, recommendations.

Russian cars with automatic transmission: automatic transmissions on models from the USSR, modern Russian cars with automatic transmission. Popular models, types and types of automatic transmissions.

Lada Vesta with an automatic transmission: what type of automatic transmission is on the Lada Vesta, pros and cons. Prospects for the appearance of an automatic transmission or a CVT on Vesta.

Automatic transmission for Renault Duster: Renault Duster automatic transmission and Duster with a robotic gearbox. Features of these types of automatic transmissions for Duster.

Oil change period

The frequency of oil changes in the manual transmission of a Lada Largus car is 50-60 thousand km. In addition to following these regulations, it is recommended to check the condition and level of the oil in a timely manner, which will avoid the appearance of “oddities” in the operation of the gearbox - for example, jerking and jerking during gear shifting. Problems in the transmission occur due to spoiled oil, which is not capable of providing effective lubrication of transmission parts, as well as protecting it from corrosion, oxidation processes, wear products and metal shavings. In addition, untimely replacement of the lubricant causes overheating of the gearbox and increased dry friction between parts in the gearbox.

Also read: Oil for manual transmission Kia Cerato

Advantages and disadvantages of French mechanics

pros

1 No hum. If we compare the VAZ mechanics, which it replaced, then the noise of howling and humming is really less, but it is still there. And it has the peculiarity of making increasing noise.

2. No looseness of the gearshift lever. The gearshift lever no longer makes noise and does not hang out as much as it did on the VAZ gearbox.

3. Clearer shifts. Although the VAZ cable gear shift drive is not bad, it is nevertheless slightly inferior to the Renault one. The gears are switched on more clearly, but also a bit stiffly.

Minuses

There are also disadvantages

French manual transmission has a high cost
Reverse gear may be difficult to engage from time to time. If such a situation occurs, the rear does not engage - put 3rd speed and then reverse.
The howl is still there

Conclusion : although the new transmission is better than the VAZ manual, it is not a standard, despite the fact that the car is from the budget segment.

All steps to replace the clutch cable

The lever itself that holds the weight is called a “fork.” Pull the weight out of the slot by pulling the cable in the direction “away from the fork” (Fig. 1).

Two actions in the engine compartment

Then they move on to the bracket: the rubber coupling is removed from the slot. The cable sheath ends with this coupling (Fig. 2).

Inside the cabin

By slightly pulling the cable toward you, remove tip 1 from the pedal holder (Fig. 1). Then tip 2 must be pushed forward. And to do this, two petals are squeezed on it. You can even damage the part itself, which will not be a big deal.

Carry out dismantling and remember: the cable cannot be seen through

The main thing is to squeeze the cable tip into the engine compartment. And then the cable assembly is replaced with a new one.

Renault JR5 transmission design

This manual transmission is an improved version of the JH3 manual transmission. Structurally, they are very similar, both are made using a two-shaft design, synchronizers are used for all gears, but there are important differences:

In the old box, the gears are switched using a rigid rod, and in the updated one, with two flexible cables, which reduces vibrations of the unit.
The clutch is engaged here by a hydraulic drive and it operates much softer than the usual cable of its predecessor.
the new transmission handles more torque: 200 Nm instead of 160 Nm.

You can find out which gearbox is installed in your car by looking at the identification plate. You can find it on the bottom of the crankcase. The first three digits indicate the gearbox type, then the modification, in the second row its serial number and the manufacturer’s proprietary code.

Video of complete disassembly of the unit and a story about the design features.

Options

According to the price lists with prices and configurations, the 5-speed manual Renault Arcana JR5 is combined only with the base 1.6 liter engine and front-wheel drive.

The all-wheel drive version of the 1.6 crossover is equipped with a 6-speed manual transmission TL8.

For the top 1.3 liter turbo, the CVT X-Tronic variator is exclusively designed. Some potential buyers see this as a drawback, believing that a version with a 150-horsepower engine and a stick would also be popular.

What gearboxes are installed on the Lada-Largus

In general, all internal combustion engines (ICEs) have the same drawback - insufficient adaptability to vehicle operating modes. The internal combustion engine is capable of developing power and torque in a small crankshaft speed range. Moreover, with a decrease in the number of revolutions, the developed power decreases.

During operation, the car moves at different speeds and requires varying torque. For example, when starting from a stop, the speed of the car is low, but the traction force must be large. On the contrary, when moving on a good road, the car develops high speed without requiring much traction force.

In order to ensure a change in the magnitude and direction (reverse movement) of the torque at constant power of the power unit within a wider range, a gearbox is used. In addition, with the help of a gearbox, the engine and drive wheels are disconnected for an unlimited time and, unlike the clutch, without the participation of the vehicle driver.

Reviews – Autoportal Renault Mania

To the list of articles

In every car, a breakdown can occur in the gearbox. To save money, you can repair the Renault Logan gearbox yourself, but it will be safer to contact a service center. The repair instructions will help you quickly and efficiently repair this module of your car:

We remove the left and right hubs along with the drives. Remove the engine protection. Disconnect the steering rack from the subframe. Disconnect the muffler. Carefully lower the subframe, unscrewing the six bolts. We hang up the engine. Drain the oil from the gearbox and remove it. We begin disassembling the gearbox by removing the tin housing of the fifth gear. Unscrew the nut and bolt securing the gear. We remove the fifth gear gears. We remove the gear shift limiter. Remove the return spring. We remove all the screws securing the gearbox housing. Pull the gear shifter towards you as far as it will go. We remove the gearbox housing. Now you need to blow or flush the gearbox. Find the damaged module and replace it. Before assembling the box, check the condition of the gears and synchronizers. Check for the presence of gear lock pins.

Gearbox for LADA Largus

The LADA Largus station wagon (2012 - present) is positioned by the manufacturer as a multifunctional car and is offered to potential buyers in three body styles:

5-seater passenger;
7-seater passenger;
2-seater cargo van.

Moreover, it can be used both as a family and commercial vehicle.

Depending on the configuration, LADA Largus engines are equipped with one of two identical 5-speed manual transmissions:

JH3 – 5-seater passenger cars equipped with a K7M engine.
JR5 - station wagons (passenger and cargo) in all other trim levels.

Both boxes are adapted to work in difficult climatic and road conditions characteristic of Russia and the CIS countries.

Gearbox device

The operating principle of all manual gearboxes is almost the same and consists of pairwise connection of gears with different numbers of teeth. Its task is to ensure a change in torque proportional to the gear ratio. At the same time, different car engines have different power, which forces designers to calculate gear ratios and the number of teeth on gears for each model separately.

The table of gear ratios of the gearbox of the LADA Largus car is given in the table:

The design of the gearbox that powers the power units of the LADA Largus station wagon is almost the same. It is based on a two-shaft circuit with synchronizers for all forward gears. This scheme provides for the presence of two parallel shafts, one of which is driving, and the second is driven. During operation, torque from the input shaft gear is transmitted to the desired secondary shaft gear, which is fixed by a synchronizer. A twin-shaft gearbox can have 4 or more forward gears. The principle of its operation is demonstrated in the video:

The main advantage of the two-shaft design is the possibility of constructively combining the engine and transmission into a compact power unit. However, when implementing such a scheme, it is technically impossible to implement direct transmission, which limits its use in heavy vehicles. It is used in front- and rear-wheel drive passenger cars or heavy motorcycles.

Differences between JH3 and JR5 gearboxes

Despite the structural similarity, the gearboxes of the LADA Largus station wagon have a number of significant differences. In addition to different gear ratios, they are organized differently:

drive wheel drive connections;
speed selection;
disengaging the clutch;
connection of driving wheels.

Clutch on/off unit:

The clutch in the JH3 gearbox is engaged/disengaged using a clutch with a bearing, which is moved by a special fork along a guide sleeve. In this case, the latter is connected by a cable to the clutch pedal.
In the JR5 gearbox, the process of engaging/disengaging the clutch is carried out by a working hydraulic cylinder combined with the clutch release bearing. The working cylinder is connected to the main hydraulic cylinder by a separate pipeline. The clutch pedal acts on the master cylinder rod.

The speed selection in the JH3 gearbox is controlled by a rigid rod, while in the JR5 it is controlled by two flexible cables.

About the disadvantages of gears

During a thorough and repeated analysis carried out by service centers, as well as based on numerous reviews from owners, it was established that such a malfunction is typical for the LADA Largus modification, which is equipped with a popular 1.6-liter engine (“K4M”) with a 16-valve head design . It is in this version of the engine tandem with the gearbox that the same gear can cause discomfort to the owner, which is why the 5th gear gear is replaced. The manufacturer is also familiar with this shortcoming, which subsequently manifested itself in its desire to use different combinations of not only engines with gearboxes, but also different options for the main pairs in transmissions (see table).

An interesting fact is that the cargo version of the LADA Largus, the so-called “van,” in fifth gear is capable of achieving a higher maximum speed in comparison with its passenger counterpart. The manufacturer intended everything just the opposite.

The noise emitted by the 5th stage gear not only annoyingly penetrated into the cabin, but also caused increased fuel consumption due to the presence of increased friction in the corresponding gearbox unit. That is why many owners of the model replace the fifth gear.