I also literally recently went on salons and sites with a headache in finding a car for the replacement of your GAZ-3110 2000,000. The Volga served me faithfully for 3 years and started even in minus 38 with almost half-turn. Before it, I also went to our own: VAZ-2106, Izh-Oda 1.6, VAZ-2111 and all turned out to be good and endless machines. Very licked on Toyota, but expensive it turned out. On February 10th, this year I got a gift for the day of jam and the whole family became the owner of a new Logan in the maximum speed, and even with a 16-valve engine, which for Loganov in the wonder ... nonsense !!! (I had a Volga with the 16th valves, although ancient).

Why exactly Logan? His, as a car for acquisition, did not consider at all, but updated appearance, finance restrictions, reliability and space in the salon did their job. Actually, 473 rubles - this amount is already rather big and you can buy a bu, as many advised. However, I needed a new !! Suspension and unbounded, like the Volga, so that it could withstand on the absence of roads in the city. With its "modest" dimensions of 185/95, I only got comfortably accommodated in it. And then, after a spacious Volga, you still do not want to sit in a close car.

For the month of operation, the car passed 2.5 thousand km. Up to 1000 km, apparently, stood an electronic limiter, because The engine was not particularly spinning, although moving with comfort in the city, not tightening the neighbors on the workshop, you can spinning up to 2500-3000 about. From test Logan with an 8-valve engine, my really did not differ anything. At some point after 1000 km, the engine woke up and soldered. After 2000 km, the mileage began to twist it. What to say? For me, the car with this engine is just a fairy tale. Until hundreds, yes, in other matters, then up to 145km / h (no longer accelerates, and nothing else) accelerates easily and naturally and it was very pleased.

To short speeds get used to quickly. You can use two transmissions in the city: 1 and 3 (or 4-th, depending on the movement manner). On the Nizakh the car is very travelers. On the track you can ride and comfortably overtake on one 5th gear. The steering wheel is sharp, 2.5 turns from the abundance to the pen. Fuel consumption on a computer: In a mixed cycle of 8.5-9.2 l / 100km, a purely city (riding active + corks) - above 11.2, taking into account all the heating, it was not yet, a purely track - 6,2l at a speed of 80-110km / h. Please note that Logan is still more urban car and arrange the race on it undesirable, although it is easily and 170km / h will go.

We can also write about the shortcomings, but they are negligible, subjective and fit into the ratio of price / quality this car. Many write that brushes are bad. Maybe, but with other winter it will be a little better (already checked). The point here is that the rest area of \u200b\u200bthe brushes with warm air is not blown away and there everything quickly frosts (structurally so fulfilled). So get to pop up on the traffic lights for cleaning or find brushes with heated;) There is no breakdown and, I hope, for the next 150 thousand mileage is not expected, and then it will be visible.

The result is as follows. Who needs a reliable, good workhorse, frisky, economical and comfortable enough, for relatively small money, then you can look at the updated Logan. The appearance was always a category of subjective, and I did it it was not to "give" a horse in my teeth :) all my family is quite this acquisition and it pleases.

Renault Logan, he is also Nissan Aprio, Renault Tandar 90, Nissan NP200, Lada Largus and Renault Symbol - Cars of one group, built on the basis of the Romanian model Dacia Logan. The car was born in 2004 and completed throughout its production life with various power units.

Motor Renault Logan, which is used to configure the car mainly determined by the solvency of the market, to which the car is supplied, as well as the requirements for the quality of fuel poured.

Gasoline Renault Logan Series K, installed on cars russian production It is a modified construction of a strongly obsolete motor that was mounted on serial cars from the mid-80s. The K7M engine, in contrast to its progenitor series E, has the upper arrangement of the camshaft, which moves 8 valves.

Such a revision of the Renault Logan engine was brought to a more modern level, in contrast to the previous generation, when the valve control shaft was located at the bottom of the cylinder block. 8 Valve-in engine Logan has several versions, but specifications Logan's motor is far from perfect.

Renault Logan 1.6 engine in its present execution can develop the maximum power of 98 hp. The K7M engine is quite universal on environmental characteristics, and although currently issued on Euro 5 standards, having higher technical specifications, also produced throughout the spectrum of requirements from Euro 1 to Euro 4.

Power unit Renault Logan 1.6 8 valves has limited opportunities By improvement. In order for the engine characteristics to meet the requirements and ecology, and in power, and the fuel consumption was completed, the cylinder head was completed and two camshafts were installed. Such an engine received the K4M constructive index. The technical characteristics of this motor indicate the possibility of capacity development of 113 hp at 5500 rpm.

Engine K7M.

Engine Logan K7M has 12 (14) versions. Differences are expressed in maximum power, and an option for fuel used. The maximum power varies from 74 to 98 hp, with maximum turns ranging from 5,000 to 5500. Gasoline, gas, ethanol can be used as fuel.

Structurally engine 1.6 is made according to the L4 SOHC scheme. Number of valves - 8. Injector fuel supply system with electronically controlled.

On the russian market There are no cars whose engines are customized to work on a liquefied gas or ethanol. Until 2010, serially installed on Renault Logan. Engine K7M 710. In 2011, the engines of the K7M 800 series began to install. The technical characteristics of the new line of motors are somewhat invented in favor of Euro4 requirements.

Due to the reconfiguration of the injection system and the operation of the catalytic converter, the engines lost 3 hp And now only 83 horses are developing at 5250 rpm, while developing a torque of 130-135 nm within speeds from 2500 to 5500. The peak torque value is achieved at 4700-4800 rpm.

As an embodiment and as a spare part comes the K7MF710 motor, which has an alpuning index F. Indicates the ability to work and on gasoline and on ethanol. Officially, such engines were not installed on cars intended for the Russian market.

The design of the valve management is based on the use of rocker pushers, which increases the number of parts used and, accordingly, reduces the reliability of this node. The intake and outlet valves are located on both sides relative to the axis of the engine. The camshaft drive is carried out by belt transmission from crankshaft. The ratio of rotation frequency is 1 to 2.

When the valve belt breaks can bend. The CPG description indicates the presence of a single outlet in the piston's bottom, but its depths are not enough. The valve can be brought when the valve hangs in the fully open state.

With timely passing and replacement elements necessary Engine resource designs 400,000 km run before the first overhaul.

Engine K4M.

16 valve engines are installed on Renault Logan. From the factory, cars are equipped with C4M power units. This type of engine is a continuation of the development of the K7 family. Basic constructive honors is the engine performance according to the DOHC scheme. Two camshafts installed in the modified valve head are used.

The scheme is traditional, and the constructive solution made it possible to avoid the use of the rocker as pushers. The force is transmitted directly from the camshaft camshaft to the valve stem. Engine specifications allow to obtain 113-115 hp, but a feature of this option power plant It is the presence of a pronounced peak torque value.

The dependence of torque from revolutions is practically linear with an increase of up to 160 nm by 4500 rpm and the subsequent decrease of up to 135 nm by 7000 rpm. The engine is quite turning. The maximum power is removed at 6800 rpm.

On the Russian version of the Renault Logan engine K4M comes with an index 490. The same type of power installation is mounted in Lada Largus. To answer the question of whether the valve is oppressed on this type of engines, it is necessary to refer to the design, on the basis of which this engine was designed.

The resource of the C4M power plant is 400,000 km, as well as its predecessor. The indicators are confirmed by the manufacturer laid and under conditions of real exploitation.

Fuel system

The fuel system of both types of aggregates is an injection. Engine engines are designed for 95 gasoline. The use of fuel with octane number 92 is permissible, but not justified, since the fuel consumption increases and the power characteristic of the engine is reduced.

Oil system

Constructively completed the same. The system pressure is created by the gear oil pump installed at the bottom of the engine. Oil fence is made from the crankcase and under pressure is supplied to the system. The lubricant of the cylinder mirrors is carried out by oil fog (bubble), which is created when the crankshaft rotation is rotated. Forced irrigation of the lower part of the cylinders with the help of oil nozzles is not provided.

Motor oil for Renault Logan. It is selected based on the operating conditions. What oil is used on a base basis absolutely not fundamentally. Since the power units are designed on the basis of engines of the 80s, then all structural materials and in general, the entire reliability of the engine involves the use of mineral, and semi-synthetic and fully synthetic oils.

However, the manufacturer indicates the use of mainly mineral and semi-synthetic, as the economically most justified variants of liquid lubrication. Engines are not so picky to work exclusively on modern synthetic oils. The first time at the factory is full of all-season semi-synthetic oil ELF 5W30.

Which oil pouring, then during operation depends on technical status and engine mileage, as well as temperature conditions of operation. Most universal oil For Renault Logan, this lubricant with a viscosity of 5W40 and 5W50, which ensures normal operation of the motor in all climatic zones.

Major malfunctions and operation problems

Some malfunctions, such as engine trimming or its vibration, have their own fundamental cause of spark plug. Candles have a limited resource and require timely replacement.

Due to the fact that this Ignition System Control Element is often forged and in principle has limited quantity High-quality suppliers, then candles should be either changed when passing on certified stations, or acquire candles from authorized dealers.

Other frequent malfunction The skeleton of the cylinder head is considered. The problem is related to S. insufficient cooling Block heads. This is especially manifested by 16 valve engines.

The breakdown of the timing belt leads to the flap of the valves. Therefore, it is required to replace the belt drive and rollers every 60,000 km of run.

The design of the power units is not complicated. Engine repair If you have enough skills, you can make it yourself. When replacing the timing belt on the 16 valve unit, it should be borne in mind that there are no marks for setting shafts on the front of the motor.

If the upper dead point of the piston can be determined by turning the candles and turning the crankshaft, followed by fixing it with a bolt through the specialist, then the camshafts are set by marks available in the rear of the head and closed plugs. Shafts also have the ability to fix special inserts.

Tuning and improvement capabilities

Renault has its own tuning DVS K4M RS, which develops 133 hp In Renault Logan, this engine is not installed at the factory. If there is no replacement of camshafts or deep upgrading the cylinder head, the engine tuning is usually performed by flashing the engine control system. This allows you to raise the power of the standard 16 valve engine from 109 to 120 hp

The installation of a turbine supercharger is possible, but will lead to a decrease in the engine resource.

Inexpensive Renault Logan cars began their history back in 1998, when the French manufacturer decided to establish production of cars oriented cars. But, it is in Russia that the data of the car gained really impressive popularity. The fact is that by 2014 the production of cars under the auspices of Renault on Volzhsky automotive factory reached the indicators of 160 thousand units per year.

Renault Logan Line Engines

Engine K7J on Renault Logan 2006. One of the most massively installed engines for this model

If you look at, then in K7J you can see some features characteristic of the EXJ series, produced by Renault in the eighties of the last century. To such archaizms should include the chain drive of the Maslonasos, the old types of rocker vehicles, as well as the method of accommodating some details. Other motor solutions with a volume of 1.4 liters almost do not differ from other motors with one shaft from the SOHC family.

This is all the same inline layout of cylinders in the vertical layout, the presence of two valves per cylinder, as well as the system of combined lubricant supply. Nevertheless, all this does not reduce the advantages of the motor ,. At the same time, Renault Logan with this power unit can accelerate to "hundreds" in thirteen seconds, holding maximum speed At a mark of 162 kilometers per hour.

Engine K7m.

Less than popular 8 valve engine 1.6 liter volume - K7M

The K7M version with a larger volume differs little from its "junior fellow", only by the course of the piston, which has become more than 10.5 millimeters. In addition, another type of clutch and flywheel applies with an increased diameter. This made it possible to increase dynamic and speed indicators by almost 10 percent. But the diseases with the briefness of the clutch cable failed, therefore.

Engine K4M.

The most powerful 16 valve engine from the ruler. Such an engine was put on the version of the car in the suite

But the K4M motor with a volume of 1.6 liters and power in 102 horsepower It can boast the presence of 16 valves.

It includes a pair of lightweight camshafts, as well as a completely new piston system. It is not necessary to adjust the valve too much, since there are hydrocomathers in the design. At the same time, the "hundred" is gained in 10.5 seconds, and the maximum speed will be 180 kilometers per hour.

Advantages and disadvantages of 8 valve engines

The advantages of eight-flaped motors can be attributed to them. low value, ease of design and not bad reliability. In addition, repairing motors will be easily, and the torque will be quite high.

As for the shortcomings of such motors, they are in, poor-quality work on idling, as well as the need to adjust the valves every 20 thousand kilometers. A, when leaving the timing belt ,. And we are no longer talking about increased noise.

Advantages and disadvantages of 16 valve engines

But a 16 valve engine offers an increased resource, compliance with the Euro-4 standard, as well as low level noise. In addition, the cooling system will turn out to be more reliable and modern than in the 8 valve aggregate. Consider only the fact that the parts for such a motor will be more expensive, the problem of "bend" valves will remain, and the "elasticity" of the motor will be minimal, which will affect the quality of riding under overtaking.

Video overclocking up to 100 km per hour on a 16 valve

conclusions

To say what kind of motor is better - difficult. For lovers of new opportunities, it is necessary to recommend a sixteen-flaped option, whereas for those who prefer the simplicity of the engine, it is better to suit his eight-flaped option.

16 valve engine is more expensive in service, as another is installed on it hinged equipment (, generator and so on.)

But one thing is clear to ensure the maximum engine life, you must and observe temperature modes Engine operation.

Symptoms that indicate the wrong engine operation:

Renault Logan - this budget car Many are considered the benchmark for simplicity, reliability and cost of operation. But these qualities are determining when buying a car similar segment. So what are the technical characteristics of the model? Do they fully meet the requirements that are presented by car dealerships? (See also common on our website).

Engines

Logan has a pair of power units. These are 1.6-liter motors with atmospheric design devoid direct injection or turbocharging. It is noticeable that the designers proceeded from the principle of maximum simplicity and reliability. It is noteworthy that in the old world both of these engines have already been sent "on peace", and their place was taken by new motors, a volume of 0.9 liters and 1.2 liters.

82 liters from.

This is the 1.6-liter power unit of the K7M series, row layout and with mediocre. data. It is equipped with 4 cylinders and 8 valves, distributed fuel injection, equipped with a system electronic controlas well as one switchgear. The diameter of the cylinder is 79.5 mm, with an 80.5 mm piston stroke indicator. The compression ratio in such an engine is 9.5 units. There is no chains in the Timing drive, it does not have - exclusively belt.

Such a layout allows power aggregate Develop a power of 82 liters. with., which can be obtained in the upper range - by 5,000 revolutions. But the torque is not bad - its 134 "Newton" traction is available in the chassis range - by 2,800 revs.

With similar technical characteristics, the engine disperses Renault to hundreds in 11.9 seconds. Of course, the indicator is not the best, but tolerant. At the same time, MAX speed reaches 172 km / h. The consumption is quite high - 9.8 liters in the city.

102 liters from.

This K4M series also has a 1.6 liter volume. The main difference, which is the cause of high return, is the presence of 2 distributional shafts In the design of the motor, as well as twice the number of valves - 16 units instead of 8. Otherwise, its design repeats the previous version - inline layout, 4 cylinder and distributed fuel injection controlled by electronics. The drive also uses the traditional belt.

The degree of compression here is slightly higher - already 9.8 units. On the other hand, the parameters of the diameter of the cylinder and the piston stroke have not changed - it is 79.5 mm and 80.5 mm, respectively.

Thanks to the constructive changes made, the engineers managed to significantly increase the capacity - up to 102 horses, although it had to pay to 5,750 revolutions by increasing peak. And the thrust grew not so much - up to 145 nm of torque, and his peak rose to 3,750 revolutions.

It made it possible to significantly improve dynamic characteristics Renault, bringing overclocking to hundreds to 10.5 sec., And the maximum speed is up to 180 km / h. Consumption in such conditions (in the city) is 9.4 liters.

Such solutions allowed engineers to achieve almost all goals - to create a simple, reliable and inexpensive unit in operation with acceptable those. indicators. But with a fuel consumption, the lining came out, since official data does not reflect the real picture. After all, she witnessed that the appetite in traffic jam, and even when there are 3-5 people in the cabin, it easily reaching 11 liters. And this is overly much for 1.6-liter volume! So in the metropolis, even a 50-liter tank is unlikely to be able to provide a rare visit to the gas station.

KPP

A mechanical transmission that has shown quite well on the old Renault Logan, the specialists decided not to touch. Its technical characteristics provide correct transmission, clarity and short-speed, and the gear ratios are very successful:

I transmission - 3,727 units;
II transmission - 2.048 units;
III transmission - 1.393 units;
IV transmission - 1.029 units;
V transmission - 0.756 units;
Rear - 3,545 units.

With the reliability of questions, it was not, as a result of which the designers found this transmission acceptable.

But there is no automatic transmission top equipment. Of course, in the city it would be much easier, but the consumption in this case did not fit into a reasonable framework.

Chassis

The suspension in Logan is the most that neither is simple. Her people. Characteristics are quite ordinary - this is an independent design on the front axle, equipped with depreciation racks Type McPherson, as well as torsion beam and half-dependent scheme on the stern. The set of stabilizers is complemented transverse stability. Brake mechanisms Disk only on the front axle, whereas behind the drivers will have to be content with drum, and regardless of the configuration. Steering Equipped with hydraulic amplifier.

This layout of the chassis is extremely simple and cheap. And the suspension itself, as the experience of the previous generation showed, was solely reliable. In addition, it is sufficiently comfortable in movement - not too dense, but not impoverished.

Outcome

As can be seen, technical data Renault Logan is quite consistent with the stated value. 1.6-liter motors are simple and reliable, gearbox is clear and tested, and the suspension is not bad. Upset only the high consumption of fuel.

RENAULT K7M 710/800 1.6 8V engine

Engine characteristics Renault Logan 1.6

Production - Automobile Dacia
Years of release - K7M 710 (2004 - 2010), K7M 800 (2010 - our time)
Brand \\ Engine Type Renault Logan - K7M
Cylinder block material - cast iron
Power system - Injector
Type - inline
Number of cylinders - 4
Valves on the cylinder - 2
Piston stroke - 80.5 mm
Cylinder diameter - 79.5 mm
Compression ratio - 9.5
Engine volume - 1598 cm. Cube.
Power - 86 hp / 5500 Ob.min.
Torque - 128nm / 3000 Ob.min
Fuel - 92.
Environmental norms - Euro 3
Fuel consumption is a city of 10 liters. | Route 5.8 liters. | mixed 7.2 l / 100 km
Oil consumption - up to 0.5 l / 1000 km
Oil in Renault Logan engine:
5W-40
5W-30
Oil change every 7500 km.

Motor Motor Logan 1.6:
1. According to the plant - 400 thousand (unofficially, on the testing of the plant)
2. In practice - 400+ thousand km

Tuning
Potential - Unknown
Without loss of resource - unknown

The engine was installed on:
Renault Logan.
Renault Sandero.
Lada Largus.

Malfunctions and repair of the engine Renault Logan / Sandero 1.6 K7M

RENAULT LOGAN K7M 710 engine 1.6 liters. 86 hp Not other than the usual K7J 1.4 liter, only with an increased piston running (from 70 to 80.5 mm), by itself the height of the block slightly increased, the adhesion of the larger diameter, the flywheel increased and the shape of the CATER CTP has changed. Structurally engine Logan 1.6 liters, as well as his low-volume fellow, has all the same archaic design of the middle of the last century with a rocker and a strange oil pump drive from the lower reno of motors of the 60s. In spite of everything, with a careful attitude to the motor, service and maintenance, replacing the oil 2 times more often than according to the instructions, it is very and very reliable, according to the internal data of the engine of Logan 1.6 about 400 thousand km, in practice the engine drove a little more .
In 2010, the K7M 710 was replaced at the K7M 800, the motor was invented, pulled into the ecological norm of Euro-4, the capacity decreased to 83 hp, there was no constructive change.
The minuses at K7M are the same as the engine K7J 1.4, high fuel consumption, often at idle begin to float the turnover, constantly (once in 20-30 thousand km) need to be adjusted valve, hydrocompensators as it was not so and no, the thrift The belt, when the belt is climbing, Logan 1.6 is a valve oppression, so once in 60 thousand km change the belt. All the same leaks of the crankshaft. Motor noisy, there are vibrations. On the device of the engine Renault Logan 1.6 and where the engine number is located, the information is set forth in the article "motor K7J.", In addition to the scope and related changes, other changes has no change. There are also described all the malfunctions and the causes of their occurrence. Speaking about what engine on Renault Logan is better than 1.4 or 1.6 8 valves, take 1.6 ... The engine is the same, but a slightly disconnector is completely weak.
Also on the basis of K7M, the engine was created K4M With 16 valve GBC and other significant innovations, the power of such a motor is significantly higher and in the event of a choice (for example Logan, Sandero), always take it, you will not regret.

Engine tuning Renault Logan K7M 1.6

Chip Tuning Engine Renault Logan

Engine Logan K7M 800 You can remove the catalyst, return its initial power of 86 hp, put the exhaust and flash the sport with firmware, maybe a couple of horses and add, but nothing will not change significantly, except for fuel consumption, now your motor will eat more))

Compressor and turbine on Logan 1.6

The installation of turbocharging and compressor is described in an example of 1.4 liter engine and all this 1 in 1 is applicable to 1.6 liters. Engine power Logan 1.6 will be on average by 5-10 hp More with a similar approach. Running forward ... to achieve high power you will not work.