Renault K7M 1.6 8V engine is used for installation on Renault Logan 1.6 8V (Renault Logan), Renault Sandero 1.6 8V (Renault Sandero), Renault Clio 1.6 8V (Renault Clio), Renault Simbol 1.6 (Renault Symbol).
Features. The RENAULT K7M 1.6 engine is not constructively different from, all differences in an increased to 1.6 liters of volume. The increase in the volume was achieved due to an increase in the radius of the crankshaft crank shaft (the remaining dimensions coincide), the piston move as a result increased from 70 mm to 80.5 mm. The height of the cylinder block increased, but all its geometric parameters are identical to K7J. On the Renault K7M and K7j engine, the same head of the cylinder block and connecting rods are set. Engine resource - 400 thousand km.
On the basis of the engine K7M, a motor with 16 valve cylinder head was created. This engine has more progressive characteristics and technologies.
Engine Characteristics Renault K7M 1.6 8V Logan, Sandero, Simbol
| Parameter | Value |
|---|---|
| Configuration | L. |
| Number of cylinders | 4 |
| Volume, L. | 1,598 |
| Cylinder diameter, mm | 79,5 |
| Piston stroke, mm | 80,5 |
| Compression ratio | 9,5 |
| Number of valves on the cylinder | 2 (1-inlet; 1-release) |
| Gas distribution mechanism | Sohc. |
| The order of the cylinders | 1-3-4-2 |
| Rated motor power / at a crankshaft rotation frequency | 61 kW - (83 hp) / 5500 rpm |
| Maximum torque / at the rotational speed of the crankshaft | 128 N M / 3000 rpm |
| Supply system | distributed fuel injection MPI |
| Recommended minimum octane gasoline number | 92 |
| Environmental norms | Euro 4. |
| Weight, kg | - |
Design
The four-stroke four-cylinder petrol with an electronic fuel injection control system and ignition, with inline cylinders and pistons rotating one common crankshaft, with the upper arrangement of one camshaft. The engine has a liquid cooling system of a closed type with forced circulation. Combined lubrication system: under pressure and splashing.
Piston
The K7M piston has the same diameter as K7J, but they are not interchangeable due to different compression heights.
| Parameter | Value |
|---|---|
| Diameter, mm. | 79,465 - 79,475 |
| Compression height, mm | 29,25 |
| Weight, G. | 440 |
Piston fingers are the same as on K7j. The diameter of the piston finger is 19 mm, the length of the piston finger is 62 mm.
Service
Replacing the oil engine Renault K7M 1.6. Replacing oil on Renault Logan cars, Sandero, Klio, Simbol with Renault K7M 1.6 engine is needed in 15000. km or the year of operation. With intensive engine wear modes (riding in urban traffic jams, work in a taxi, etc.) It is desirable to change the oil every 7-8 thousand km.
What oil pour into the engine: Type 5W-40, 5W-30, approved by Renault Easple ELF Excellium 5W40 from Plant.
How much oil pour: When replacing the filter, 3.4 liters of oil requires, without replacing the oil filter - 3.1 liters.
Original engine oil filter: 7700274177 or 8200768913 (both filters are interchangeable).
Replacing belt timber It is necessary every 60 thousand km. It is not necessary to postpone this procedure, when cutting the timing belt, the valve is oppressed. Replacing the timing belt can be combined with valve adjustment (hydrocompensators on Renault 1.6 8V are absent).
Air filter It is replaced once every 30 thousand km of run or 2 years of operation. In conditions of increased dusting, it is recommended to replace the air filter more often.
Renault Logan 1.6 A liter with a capacity of 86 horsepower was installed on the first generation Logan budget sedan. This is a rather simple 8-valve motor with a cast-iron cylinder block (with an aluminum pallet) and a belt in the timing drive. Today we will describe in detail about the characteristics and features of this motor. RENAULT K7M 710 engine It has a rather archaic design. Simplicity and reliability is exactly what await from an inexpensive car. According to the manufacturer's assurances, with proper care, the motor is more than 400 thousand mileage kilometers. 
Renault Logan Engine Device 1.6
Power unit gasoline, four-stroke, four-cylinder, inline, eight-flaped, with the upper arrangement of the camshaft. The order of the cylinders: 1-3-4-2, the countdown - from the flywheel. The power system is the distributed fuel injection MPI (Euro-2 toxicity norms).
Renault Logan 1.6 With a gearbox and clutch form a power unit - a single unit, fixed in the engine compartment on three elastic rubber-metal supports. The right support is fastened to the bracket on the top cover of the drive belt of the gas distribution mechanism, and the left and rear - to the card of the gearbox.
The engine cylinder block is cast from cast iron, cylinders are boring directly in the block. The nominal cylinder diameter is 79.5 mm. In the lower part of the cylinder block, there are five crankshaft root bearing supports with removable lids, which are attached to the block with special bolts. The holes in the cylinder block under the bearings are processed when the covers are installed, so the covers are not interchangeable and for differences are marked on the outer surface (the lids account is conducted from the flywheel side). On the end surfaces of the middle support, nests are made for a stubborn semi-colts that prevent the axial movement of the crankshaft.
The inserts of the root and connecting rod bearings of the crankshaft steel, thin-walled with antifriction coating applied to work surfaces. Crankshaft with five root and four rod cakes. The shaft is equipped with four counterweights, cast at the same time with him. To supply the oil from the root neck, the channels, the outlet holes of which are closed with plugs are served. At the front end (sock) of the crankshaft set: an asterisk of an oil pump drive, gear pump pulley of the gas distribution mechanism (timing) and pulley of the drive of auxiliary aggregates. In the hole of the gear pulley there is a protrusion that enters the pier on the sock of the crankshaft and fixes the pulley from turning. Similarly, fixed on the shaft and pulley of the drive of the auxiliary units.
Renault Logan Engine Cylinder Head 1.6
Renault Logan Cylinder Head 1.6 - from aluminum alloy, total for all four cylinders. It is centered on the block with two sleeves and is attached to ten screws. Between the block and the head, an awesome metal gasket is installed. In the upper part of the cylinder head, five supports (bearings) of the camshaft are located. The supports are carried out in detail, and the camshaft is inserted into them from the GD drive side. The camshaft is driven by a toothed strap from the crankshaft.
In the extreme support neck of the camshaft (from the flywheel), a groove was performed, which includes a stubborn flange that prevents the axial movement of the shaft. The thrust flange is attached to the cylinder head with two screws. The axis of the valves rocker is attached on top to the camshafts of the camshaft with five bolts. The rockers are held from the displacement along the axis of two brackets, which are attached to the fastening bolts of the row axis. In the rocker, screws that serve to adjust the thermal gaps in the valve drive 5 are screwed down.
Adjusting screws are changing from turning off with locknuts. The saddles and guides of the valve sleeves are pressed into the head of the cylinder block. On top of the valve sleeve guides are caressed oil caps. Steel valves are located in two rows, obliquely to the plane passing through the axis of the cylinders. A number of exhaust valves are located in front (along the car), and a row of intakes. The inlet valve plate is larger than the graduation.
The valve opens with a rocker, one end of which relies on the camshaft camshaft, and the other, through the adjusting screw, to the end of the valve rod. The valve is closed under the action of the spring. With the bottom end, it relies on the washer, and the top is on a plate that is held by two breadcrumbs. Folded crowns outside have the shape of a truncated cone, and from the inside are equipped with stubborn colors included in the valve rod
Oil pump engine Renault Logan 1.6
Oil pump Renault Logan 1.6 It has a pretty archaic design inherited in old models of engines, such as Renault EXJ. Chain pump drive. The leading steel of the pump drive is installed on the crankshaft under the front cover of the cylinder block. A cylindrical belt is made on the asterisk, according to which the front seal of the crankshaft is running. The asterisk is installed on the crankshaft without stretch and not fixed with a key. When assembling the engine, the leading sprier of the pump drive is clamped between the gear pulley of the timing and the crankshaft crankshaft as a result of tightening the package of the package of the bolt of attachment of the pulley drive of the auxiliary units. The torque from the crankshaft is transmitted to the asterisk only at the expense of the friction forces between the end surfaces of the asterisk, the gear pulley and the crankshaft.
Driver motor Renault Logan 1.6
Renault Logan Machine Drive Scheme 16 You can consider slightly higher in the photo. The failure of the drive belt of the gas distribution mechanism (TRM) (broken or cutting of teeth) will lead to the stamping of the valves in the pistons due to the mismatch of the angles of rotation of the crankshaft and the distributional shafts and, as a result, to expensive engine repair. I.e when climbing the timing belt on Renault Logan 1.6 Gnet valve! Therefore, in accordance with the regulation of the car maintenance of the car, conduct a belt state check every 15 thousand km of mileage. Since the spark plugs also need to be changed after 15 thousand km, then these works are better combined, because it will be easier to turn the crankshaft when checking the belt. The surface of the toothed part of the belt should not have folds, cracks, fermented feeds and tipping tissue from rubber. The reverse side of the belt should not have wear, exposing the filament of the Cord, and the markup traces. On the end surfaces of the belt should not be observed with bundles and grinding. The belt must be replaced when traces of oil detecting on it. Regardless of the status of the timing belt Renault Logan 1.6 it is necessary replace every 60 thousand km mileage.
Technical characteristics of the engine Renault Logan 1.6
- Working volume - 1598 cm3
- Number of cylinders - 4
- Number of valves - 8
- Cylinder diameter - 79.5 mm
- Piston stroke - 80.5 mm
- Timber drive - belt
- Power hp (kW) - 86 (64) at 5,500 about. in min.
- Torque - 128 nm at 3000 vol. in min.
- Maximum speed - 175 km / h
- Acceleration until the first hundred - 11.5 seconds
- Fuel type - gasoline AI-92
- Fuel consumption in the city - 10 liters
- Fuel consumption in a mixed cycle - 7.2 liters
- Fuel consumption on the highway - 5.7 liters
Motor at the Romanian Automobile Dacia plant was there that the French organized an assembly. Until recently, it was from Romania that the motor was covered with the Moscow plant "Autoframos", where they put on Renault Logan and Sandero of the first generation.
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 is 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.
Applicability on cars
Budget models of Renault cars Logan 1.4 and Logan 1.6 over a nearly ten-year history of presence on Russian roads managed to conquer recognition of many thousands of motorists. The concept of the French manufacturer, who resolved in 1998 to create an inexpensive and practical passenger car, intended for emerging markets, received the most triumphant continuation and unexpected development. If in 2005 it all started at the small platform of the Autoframos enterprise in Moscow with a "screwdriver" assembly of several thousand cars per month, then today the Volga car plant builds his annual plans, relying on the whole "Loganovskaya" model paint: Renault Logan, Renault Sandero, Lada Largus. Sales of these three models in the country in 2014 exceeded 160 thousand pieces.
In a large extent, this popularity of these models of Renault ensured the use of proven and well-proven in other machines of the concern of the concern and well-established engines of internal combustion of the K7J 1.4 L and K7M 1.6 l series of internal combustion engines. The flagship line for Renault Logan is considered to be the 16V four-cylinder liquid cooling unit with the K4M index, the production of which, in addition to the Renault Espana parent company, also mastered the production sites of AvtoVAZ. These 16-dipal motors with decent technical characteristics still equip other Renault models (Sandero, Duster, Kangoo, Megane, Fluence), as well as Lada Largus and Nissan Almera G11.
Features of the design and DVS specification
Engine design K7J (manufacturer Automobile Dacia, Romania) 1.4 l / 75 hp It is inherited from the rather old Motors of the Renault 1980s corporation (EXJ series) and therefore looks somewhat archaic: here and the unusual chain drive of the oil pump used on units with the lower arrangement of the camshafts, and the ancient rims of timidation. The remaining engine solutions 1.4 are standard and no different from other four-stroke 4-cylinder single SOHC Type Motors: Round vertical cylinder location, 2 valves per cylinder, drive Timing from a toothed belt, Liquid cooling and combined lubricant system (for the most loaded DVS parts. Lubricant Under pressure, to all other things - simple splashing). K7J is more than 400 thousand km of mileage. Motor 1.4 provides a car the following dynamics: the maximum speed is 162 km / h, the hundred is dialing in 13 seconds.
Engine Renault Logan K7M 710 and its successor K7M 800 (production All the same Automobile Dacia) 1.6 l and 86 hp (K7M 800 - 82 hp) according to the design almost completely coincide with K7J, also have liquid cooling, but they have an increased piston increased by 10.5 mm, obtained by changing the height of the block. Other clutch and flywheel (larger diameter) are also used, and the gearbox crankcase has minor modified changes. The K7M resource also exceeds 400 thousand km in running. Dynamic motor characteristics: speed at a maximum of 172 km / h, 100 km / h - for 11.9 seconds, unlike 1.4.
The greatest differences in the design and characteristics are observed at the engine K4M, despite the fact that this internal engine is 1.6 liters and 102 hp It is also the next development of the K7M series. Absolutely new 16-valve cylinder head with two lightweight camshafts and a new piston system. Here, finally, it is eliminated by the need for constant adjustment of the DVS valves through sufficiently short runs, is eliminated by the simple use of well-known hydrocomathers. Motor speeds up cars up to 100 km / h in 10.5 seconds, reaching a maximum of 180 km - quite good characteristics. There are no frank weak points in this unit: the necessary changes are made to the system in terms of pumps and thermostat, the ignition module was completed.
Advantages and disadvantages of power units
Significant experience of operating car Reno with all three types of liquid cooling engines allows you to make a rather objective picture of their strengths and weaknesses, and two models of K7J and K7M are almost identical to these characteristics, and only the K4M engine has significant differences due to more modern technological solutions, And what better, solve already buyers.
Advantages of K7J and K7M:
- low cost and simplicity of engines;
- reliability: confirmed motor resource is more than 400 thousand km;
- versatility and maintainability;
- simplicity of maintenance;
- high torque;
- good "elasticity" of engines, equal to 1.83.
Disadvantages of K7J and K7M:
- relatively high fuel consumption;
- the instability of revolutions when working at idle;
- the absence in the design of hydrocomathers, as a result, the need for constant valve adjustments (after 20-30 thousand km);
- "Bend" valves with a sudden breakdown of the timing belt;
- increased "fluidity" crankshaft salts;
- weak reliability of the elements of the cooling system;
- noise and tendency to vibrations.
The advantages of the K7M model in front of the K7J can only be attributed to a 12% maximum power and at a 11% maximum torque. But for these advantages of KHS 1.6 l pays and increased by 4.5% appetite, so what is better, the question is controversial.
Advantages of K4M:
- reliability, practical resource exceeds 400 thousand kilometers;
- compliance with Euro-4 environmental standards;
- increased power (102 hp);
- low noise and vibration resistance;
- more modern and reliable cooling system.
Compared to 8-valve engines, K4M 16V works much quieter, not prone to vibrations and has the same resource, but significantly high power and torque.
Motor disadvantages K4M:
- expensive spare parts;
- "Bend" valves during belt breakdown;
- the weak "elasticity" of the engine equal to 1.53, as a result, problems with the acceleration of the car during overtakers.
Thus, a detailed analysis of the technical characteristics of all three DVS samples, as well as the practical experience of operating Renault Logan with these power plants makes it possible to determine which motor is better. The more powerful ICC 1.6 l with liquid cooling is still somewhat preferable to its "older brother" 1.4 liters. Power 75 hp It is simply not enough for a comfortable control of a loaded car either on a country track, nor in short "mining" in the city. And in the 16V dispute with 8V, the first sample acts as an unconditional leader. The only characteristic on which 16V loses to its opponent - "Elasticity". For the rest of the characteristics 16V is better better. The engine V16 with liquid cooling of the Renault corporation is simply much more modern and gives more opportunities to the driver.
So, it happened. The present in the autumn "Logan" is the favorite of non-refinery dachens, taxi drivers and simply leaning citizens acquired a 16-valve engine with two camshafts about 102 horsepower. It is impossible to say that his appearance we waited like schoolchildren of the winter holidays, but the freedom of choice is always good, right? In addition, doubleing the number of valves, the thoroughness, which is called, to the heap received a somewhat more impressive appearance.
Door handles, moldings and bumpers were dragged into body color, added slightly chromium with a radiator grille, and "Logan" immediately looked. In the interior, pleasant changes also happened - light plastic, which has lost all his elegacity, after a couple of months after the purchase, changed as hardencine, but more practical dark gray. On his background, it is much more profitable to look at even the door handles together with edging ducts for aluminum. The handlebar and lever of the gearbox are pleased with the prestige version of the skin. And the car got the larger mirrors with the electric drive and put the air conditioner. But the main thing - here seems to be pretty worked on noise insulation: the work of the aforementioned motor, at least at idle, is practically not heard, and the aerodynamic noises are not so much sharpened at the speeds for a hundred.
So, all for the better as if. There is only one snag. Dynamic talents of a new motor, alas, not impressive. Excess compared to the 8-valve "one and six" dozen "horses" and almost two dozen Newton-meters of torque did not "Logan". The increase in dynamics can be seen only on paper - in specifications.
In fact, and from the intersection, it is not to go along with other participants in the movement, and when overtaking on the track, you have to carefully and in advance to calculate the distance to cars at the opposite. It's a shame even. I did not notice a special difference in comparison with the usual 1.6-liter motor, and with the updated firmware of the engine control unit (by the way, a lot of "loganodes" almost immediately after the purchase "chip" your car) an eight point broke the car, perhaps, and cut .
But 102-strong "Logan" complies with the norms of toxicity "Euro-4". But is any of us ready to quit 30 thousand blood earned on the altar of ecology? I think the answer is obvious. In addition, the "Taxi-Casque-Osagi" on the 16-valve "Renault" will be more expensive, and after all, the buyer "Logan" is used to consider money to the last penny. Yes, the engine works quieter, pleases with elasticity - from the second program you can touch without a jerk, and the fuel consumption on his passport is slightly smaller. But after all, a 16-valve engine is available only in the richest configuration "Prestige", which, of course, affects the price. If the base for 420 thousand add metallic, radio tape recorder, ABS and the passenger airbag, then the price tag will jump to 450,000 rubles. To put it mildly, it is not suiced for the budget to determine the car, and even in the crisis era of discounts and shares. In similar money, this will now cost a much better equipped "Lacetti" with a 1.6-liter motor in 109 liters. from.
On the other hand, "Logan" remained himself: the same pretty reliable car with soft, energy-intensive suspension and good brakes in which almost any malfunction is eliminated, which is called, on the knee. And maintainability in our realities - the trump card, which will be appreciated for a long time.
Basic equipment "Prestige"
driver Airbag, Central Lock with Du, Chrome-plated Pads on the radiator grille, 2 rear head restraints, power windows and mirrors, audio preparation, trimming of steering wheel and lever KP, fog lights, air conditioning, power steering, heating front seats, on-board computer, alarm
