Replacing fifth gear on Largus

Gear ratios of Lada Largus gearboxes

Depending on the Largus configuration, the standard 5th gear ratios may be different. Comparisons of different modifications in the table:

Equipment: Station wagon 5 seatsK7M (1.6l, 8cl), JH3 540 Station wagon 7 seatsK7M (1.6l, 8cl), JR5 551 Station wagon 5 and 7 seatsK4M (1.6l, 16cl), JR5 549VanJR5 517

1st gear	3,727
2nd gear	2,048
3rd gear	1,393	1,321	1,393	1,321
4th gear	1,029	0,971	1,097	0,971
5th gear	0,820	0,795	0,892	0,738
Reverse	3,545
Main couple	4,214	4,5	4,214	4,928

Which 5th gear gear is better to choose?

The table shows the car speed values at different gear ratios of Largus 5th gear, as well as the article number of the driven and driving gears:

Gear ratio 5th gear Catalog number 1 Catalog number 2 Speed at 3000 rpm Main pair

0,892	8200611295	8200608035	93,6	4,214
87,6	4,5
80,0	4,928
0,820	8200611299	8200607980	101,8	4,214
95,3	4,5
87,0	4,928
0,795	8200611297	8200607978	105,0	4,214
98,3	4,5
89,8	4,928
0,756	8200611301	8200607981	110,4	4,214
103,4	4,5
94,4	4,928
0,738	8200611303	8200607983	113,1	4,214
105,9	4,5
96,7	4,928

Replacing Largus 5th gear gear

The design of the Largus transmission allows you to change the 5th gear gears without disassembling the entire gearbox or even removing it from the car. You will need a gear puller, a hair dryer and two screwdrivers. If you have the necessary tools, the process takes no more than 2-3 hours. Video instructions: When replacing gears with their own hands, car enthusiasts most often encounter difficulties when dismantling a small gear. Removing it without a special puller is not so easy, because... it sits on the shaft using a thread locker. In this situation, a hair dryer can be useful; after heating, the part will easily slide off. Don't forget to fill in new transmission oil.

Reviews about 5th gear gears

Based on feedback from owners of the Lada Largus car, as well as reviews, trials and tests, we have compiled a comparison table:

PCH-5 Shifts to 4th gear Hill climbs in 5th gear Confident acceleration in 5th gear Summary

0,892	Rarely	Confident, even with a load	from 50 km/h	Loud engine noise on the highway. Only for the city and with load.
0,820	Sometimes for fast accelerations	Confident, even with a load	from 60 km/h	The howl of the engine on the highway has become less, but you still get tired of it. When trips are more often around the city and less often on the highway.
0,795	During fast acceleration	Confident, but without a load	from 65-70 km/h	To switch to 5th gear, you have to accelerate a little longer in 4th. The hum and howl from the engine and gearbox are within normal limits. Ideal city/highway option.
0,756, 0,738	Often	You should add gas	from 75-80 km/h	The gap between 4th and 5th gear is significant. Minimum noise level from the engine and gearbox on the highway. Suitable for driving on flat terrain with occasional overtaking.

This modification is primarily used to reduce engine speed when driving in 5th gear. Fuel savings after such upgrades are not significant. If fuel consumption with PCH-5 0.892 was 7.4 l/100km, then with 0.795 it will decrease by 0.3 l and amount to 7.1 l/100km. If you expect that replacing the 5th gear of the Largus will pay off in terms of gasoline savings, then you will have to wait several years. How do you feel about this modification of the Lada Largus gearbox? Is it worth changing the 5th gear driven and driven gears? What gear ratios are best to choose? Let us remind you that you can increase the speed of the car in other ways, for example, by installing wheels of a different diameter. And to make long trips more comfortable, you can add an armrest. Keywords: soundproofing Lada Largus | Lada Largus engine | gearbox Lada Largus 00 Found an error? Select it and press Ctrl+Enter..

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Source: https://xn--80aal0a.xn--80asehdb/car-description/reviews-tests/lada-largus-reviews-tests/1136-zamena-shesterni-5-peredachi-lada-largus-otzyvy-i- sravneniya.html

Replacing fifth gear gears on a Lada Largus: what is needed and how to change it

Owners of Largus cars are aware of one of the problems of this generally good car - the gas pedal is already hitting the floor, the ears are blocked from the howl of the engine, and the car still drives 130 kilometers per hour on the highway. The problem lies in the features of the gearbox.

The fact is that the designers considered the Largus a commercial van that would carry cargo all its adult life, and the seven-seat “luxury” would strain under the weight of passengers and the driver. As a result, the far from powerful engine had to be coupled with a gearbox with short gear ratios.

Depending on the modification, Largus could be equipped with two types of gearboxes, and both types also come in several versions. And if 1st and 2nd gears have the same numbers, then the differences begin, reaching their apotheosis in 5th gear.

And the weaker the engine, the shorter and slower the fifth speed will be, so the most “wild” gear ratios are found in cars with eight-valve engines.

However, even in the most powerful Largus, the problem is still present: on the highway you will have to press the gas to the floor, spinning the engine to 4 - 4.5 thousand rpm, otherwise the car simply will not want to go.

On Internet forums you can find fascinating threads devoted to the topic of replacing boxes on Largus. The people were so concerned about the howl of engines on the highway that they were seriously preparing for the long and labor-intensive work of replacing the gearbox and adjusting it in place with a file.

Fortunately, very little time passed and a solution was found. It turns out that everything can be done much simpler, and most importantly cheaper - just replace the 5th gear gears, and Largus will go faster without pressing the gas pedal to the floor. Replacing 5th gear gears on Largus is one of the services provided by Largus-Service (Logan-Service).

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.

Let's start by removing the oil pan protection. Unscrew the bolts 10 mm, being careful not to twist them. And this is quite possible: they often sour well, so if you don’t want to bother with drilling them later or attaching the protection with self-tapping screws, you need to unscrew them carefully. However, regular WD40 can help.

Drain the oil from the gearbox. Everything here is elementary, unless you confuse the engine crankcase and gearbox.

We unscrew the filler plug and tighten the drain (not forgetting to install a new sealing washer).

All that remains is to install the protection, and at the same time treat the protection bolts with any grease to prevent them from souring in the future.

Let's move on to the front left wheel. How to remove a wheel is unnecessary to explain.

We find the “lamb” on the fender liner at the top left of the wheel. We turn it counterclockwise and move the fender liner, fixing it directly on the bumper. Before us is a view of the gearbox, partially blocked by the subframe amplifier. It will also have to be removed by unscrewing two bolts.

We find the reverse sensor connector: it is screwed into the gearbox, there are simply no other sensors there. Remove the connector, then disconnect the wiring from the gearbox cover. It is usually attached with a plastic clamp that can be easily removed with wire cutters.

After making sure that nothing prevents you from removing the gearbox cover, unscrew its bolts. We wipe our hands and remove the lid to the side.

In front of us are the gears of the 5th gear, which we have to replace. The hardest thing is to remove these stars. It will be much easier to install new ones.

First we have to pull out the 5th gear shift fork. Therefore, we take a drift, a hammer and try to knock out the pin that secures it to the shaft. He will have to be beaten from the bottom up, which in itself is already interesting.

Instead of a drift, an ordinary drill will do just fine: it’s not a shame to break it, and choosing the right diameter is not difficult. So, we begin to knock on the pin and watch how it slowly creeps up.

There is no need to hit with a hammer with all your might; the box, although powerful, is quite fragile in places.

After the pin has flown out of the plug, we begin to remove it. She needs to be pulled towards herself. If you decide to do without special pullers, then, provided that you have an assistant, this is done as follows: one holds the fork with his hand, the second quietly taps the shaft through a drift. If you are careful but persistent, everything will work out and the fork will be in your hands.

THREE FROM THE CASTER

Editorial "Largus" tried on three pairs of gears with different gear ratios. In addition to the standard fifth gear of 0.892, we sequentially installed sets of 0.820 and 0.795 (see table). On a 300-kilometer test route, including highways and suburban roads, they compared the difference in fuel consumption and accumulated subjective assessments, which are sometimes even more interesting for the car owner than measurement data. For reliability, the expert assessment was supported by measurements at the Dmitrovsky test site. Test results and comments are presented below, including photographs, tables and diagrams.

0.892. The basic version provides excellent elasticity. Fifth gear can be used from 50 km/h even when fully loaded. You rarely have to shift down - the traction reserve is enough even for quick overtaking. But the noise of the engine operating at high speeds is annoying, even if you are moving no faster than the permitted 90 km/h: on long trips you quickly get tired.

0.820. The engine is no longer perceived as so elastic, but still within normal limits. You only have to shift to fourth gear for quick accelerations. Even with a full load and in fifth gear, the car easily overcomes climbs, and on horizontal sections it confidently picks up speed from 60 km/h. At the same time, it became significantly quieter at high speeds. The gain on fuel is insignificant.

0.795. My personal choice. Editorial "Largus" is rarely fully loaded, and on country routes I usually drive on roads with flat terrain. The number of shifts from fifth to fourth on the test route increased, but only slightly. When upshifting, I stayed in fourth gear a little longer before engaging fifth, and when overtaking, on the contrary, I began to shift from fifth to fourth more often.

0.756 and 0.738. We have not tested these options, but judging by our impressions of the 0.795 fifth gear box, they accumulate the shortcomings of the previous option. Elasticity will deteriorate, you will have to shift from fifth to fourth more often, and there will be a significant gap between these gears.

Replacing the Lada Largus gearbox

The need to dismantle the box arises every time it is necessary to replace or repair the clutch on a car. On the Lada Largus, the gearbox is mounted in one unit along with the differential and final drive.

Replacing a transmission is one of the most difficult types of car repairs. We strongly recommend using the services of specialized technical centers for this.

When is Largus gearbox repair or replacement needed?

It is not always easy for an inexperienced driver to understand this. The gearbox and clutch work in tandem, and the symptoms of clutch and gearbox failure are often similar. Typical manifestations and causes of gearbox breakdowns:

Increased vibration and extraneous noise in the gearbox. Possible weakening of the gearbox or engine mounting supports, insufficient oil level or mismatch of its brand, critical wear or damage to bearings or gearbox gears
Oil leaking from under the gearbox. Damage or destruction of O-rings or seals
Extraneous sound when changing gears, difficulty switching them on. Breakage of gear shift rods, inappropriate oil filled, weakened synchronizer springs, wear of blocking rings or synchronizers themselves
Spontaneous gear shutdown. Large gap in synchronizer clutches, breakage of their springs or wear of gear shift forks

Only a technician can tell you the preliminary cause of the breakdown after inspecting and diagnosing the car. After dismantling and disassembling the gearbox, we will be able to accurately determine the malfunction and eliminate it.

Replacing fifth gear Largus

Largus has one not very pleasant feature - the gear ratio of the 5th gear is not very high.

Because of this, on long stretches on the highway, already at a speed of about 90 km/h, you have to turn the engine above 3000 rpm. Increases fuel consumption and noise inside the car.

Replacing the Largus 5th gear with another gear with a higher gear ratio will solve this problem.

The mechanics of our technical center will professionally replace 5th gear on a Lada Largus in literally 1.5-2 hours. Replacement is carried out without completely dismantling the gearbox; partial disassembly directly on the car is sufficient. The design of the gearbox allows this to be done, since the 5th gear is an overdrive and is located separately from the other gears.

There are several different factory 5th gears with different ratios that can be installed in the Largus gearbox.

The more often you use the car for long country trips, the higher the gear ratio it makes sense to install the gear. The greater the fuel savings and the less noise in the cabin.

But the acceleration dynamics will become even worse and you may have to switch to lower gears more often when overtaking. This must be taken into account when deciding whether to replace the 5th gear.

If you decide to replace the Largus fifth gear, our mechanics will offer you the most optimal replacement option among all available.

All work is performed only on modern equipment using professional tools and devices. We always use new fasteners and use special products for fixing, degreasing and cleaning threads. You can be sure of the excellent quality of all work performed.

Source: https://largus-remont.ru/zamena_kpp_lada_largus/

WHAT IS GOOD?

Ball joint Lada Largus: causes of malfunction and replacement rules
The standard sixteen-valve gearbox has both pros and cons. Among the advantages is the ability to provide dynamic acceleration and excellent elasticity. A car with a gross weight of nearly two tons and armed with only a 105-horsepower engine confidently stays in traffic, and in fifth gear it cheerfully picks up from 50 km/h - there is no need to shift often. On long hauls, sometimes you drive for several hours in fifth as if on automatic. It’s convenient, but you have to pay for it with increased noise and fuel consumption - and even when the speedometer needle has not even reached a hundred. Therefore, together with the specialists from our technical center, we decided to experiment with different gear ratios. After all, the design of the Largus transmission allows you to change fifth gear gears without disassembling the entire box or even removing the unit from the car. By the way, owners of Renault models (for example, Logan or Sandero), as well as Nissan-Almera, can similarly configure the top gear for themselves.

There are different sets of gears on sale, each of which will cost about 3,000 rubles. The craftsman will charge the same amount for a replacement. The beauty is that you won’t have to part with the car for a long time: a competent repairman can handle it in a couple of hours. Let's try!

Replacing 5th gear gear Lada Largus

Posted in Useful articles

Replacement options

Currently, there are four modifications of the Lada Largus, each of which has its own pair of 5th gear gears with a gear ratio:

0.892 – for the K4M station wagon (5 and 7 seats, chamber volume 1.6 liters, 16 valves), gearbox JR5 549;

0.820 – for the K7M station wagon (5 meters, chamber volume 1.6 liters, 8 valves), gearbox JH3 540;

0.795 – for the K7M station wagon (7 seats, chamber volume 1.6 liters, 8 valves), gearbox JR5 551;

0.738 – for a van, box JR5 517.

Installing another fifth gear instead of the “standard” one is not too difficult, and many drivers make the replacement themselves. If you are not confident in your capabilities, contact a specialized manual transmission repair service center. Here they will not only carry out the replacement within literally a couple of hours, but will also advise the best option for your Largus.

Who needs to replace the 5th gear gear on Lada Largus?

As you know, the lower the gear ratio, the faster the transmission. As the speed increases, the noise level decreases, and accordingly, the comfort of travel increases, especially on country roads.

In urban conditions, the effect of a loud howl, as a rule, does not appear, so replacing the 5th gear gear is relevant mainly for those owners of a 16-valve engine who often have to make long country or intercity trips.

An additional incentive may be fuel savings after replacement, but it is not so significant as to quickly recoup the costs and is rather a pleasant bonus for the car owner.

Reliability jh3

The JH3 gearbox is considered a reliable unit, therefore it is still relevant in the automotive market. Car owners prefer cars with a structurally simple gearbox, partly because of its accessible and cheap maintenance. The disadvantages of manual transmission boil down to the lack of a high level of driving comfort.

The gear shift does not always occur clearly and quickly; sometimes there are jolts and jerking of the vehicle. Structurally, the unit has been fully studied, so even in the event of a serious breakdown, its overhaul will not be difficult. Usually the lever for switching from one speed to another becomes loose ahead of time, which leads to unclear switching.

Often, owners of Lada Largus with JH3 note the noisy operation of the manual transmission and a crunching sound when engaging reverse mode. Early wear of the synchronizers cannot be ruled out. If we close our eyes to some shortcomings, we will get decent mechanics that can go 200-300 thousand km without a single repair. There are known examples of cars that have covered about 500 thousand km on JH3 without a single repair. Much depends on your driving style and quality of service. The oil change must be carried out in accordance with the maintenance regulations.

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