Frequency and timing of replacing the timing belt for Renault Logan, recommendations from the factory and Logan manufacturers. Frequency and timing of replacing the timing belt for Renault Logan, recommendations from the factory and Logan manufacturers. What are the options?

Engine Renault Logan 1.6 8 valves appeared in our country along with the first generation Renault Logan. Initially, the K7M gasoline power unit produced 87 horsepower, but today the same engine has a power of 82 hp. There is no error in this difference. The fact is that in 2005 the engine complied with Euro-2 environmental standards, and today it complies with Euro-5 standards. The power unit was made more environmentally friendly, but the reconfiguration deprived Logan’s engine of several horsepower.

Engine design Renault Logan 1.6 8 valves

Engine Renault Logan 1.6 8 cl. gasoline, four-stroke, four-cylinder, in-line, eight-valve, overhead camshaft. The operating order of the cylinders is: 1–3–4–2, counting from the flywheel.
Power system - distributed fuel injection MPI. The engine, gearbox and clutch form the power unit - a single unit mounted in the engine compartment on three elastic rubber-metal supports. The right support is attached to the bracket on the top cover of the timing belt, and the left and rear ones are attached to the gearbox housing. The engine cylinder block is cast from cast iron, the cylinders are bored directly into the block. The nominal diameter of the cylinder is 79.5 mm.

At the bottom of the cylinder block there are five crankshaft main bearing supports with removable caps, which are attached to the block with special bolts. The holes in the cylinder block for the bearings are machined with the covers installed, so the covers are not interchangeable and are marked on the outer surface to distinguish them (the covers are counted from the flywheel side). On the end surfaces of the middle support there are sockets for thrust half-rings that prevent axial movement of the crankshaft.

The crankshaft main and connecting rod bearing shells are made of steel, thin-walled, with an anti-friction coating applied to the working surfaces. Crankshaft with five main and four connecting rod journals. The shaft is equipped with four counterweights cast integrally with it. To supply oil from the main journals to the connecting rods, there are channels whose outlet holes are closed with plugs. At the front end (toe) of the crankshaft there are installed: an oil pump drive sprocket, a timing gear drive pulley and an auxiliary drive pulley. In the hole of the toothed pulley there is a protrusion that fits into a groove on the toe of the crankshaft and secures the pulley from turning. The drive pulley for auxiliary units is similarly fixed on the shaft.

Cylinder head of Renault Logan 1.6 8 valve engine

Cylinder head Renault Logan 1.6 cast from aluminum alloy, common to all four cylinders. It is centered on the block with two bushings and secured with ten screws. A non-shrinking metal gasket is installed between the block and the head. There are five camshaft supports (bearings) located at the top of the cylinder head. The supports are made one-piece, and the camshaft is inserted into them from the timing drive side. The camshaft is driven by a toothed belt from the crankshaft.
In the outer support journal of the camshaft (from the flywheel side) there is a groove into which a thrust flange fits, preventing axial movement of the shaft. The thrust flange is attached to the cylinder head with two screws. The valve rocker axis is attached to the camshaft supports with five bolts. The rocker arms are kept from moving along the axis by two brackets, which are secured with bolts securing the rocker arm axis. Screws are screwed into the rocker arms, which serve to adjust the thermal clearances in the valve drive 5.

The adjusting screws are prevented from being loosened by locknuts. The valve seats and guides are pressed into the cylinder head. Oil deflector caps are placed on top of the valve guides. The valves are steel, located in two rows, inclined to the plane passing through the cylinder axes. At the front (along the direction of the car) there is a row of exhaust valves, and at the rear there is a row of intake valves. The intake valve plate is larger than the exhaust valve.

The valve is opened by a rocker arm, one end of which rests on the camshaft cam, and the other, through an adjusting screw, on the end of the valve stem. The valve closes under the action of a spring. Its lower end rests on the washer, and its upper end rests on a plate, which is held in place by two crackers. The folded crackers have the shape of a truncated cone on the outside, and on the inside they are equipped with persistent flanges that fit into the groove on the valve stem.

Engine oil pump Renault Logan 1.6 8 valves

Renault Logan engine lubrication combined. The main and connecting rod bearings of the crankshaft and the camshaft bearings are lubricated under pressure. Other engine components are splash lubricated. The pressure in the lubrication system is created by a gear oil pump located at the front of the oil pan and attached to the cylinder block. The oil pump is driven by a chain drive from the crankshaft.

Timing drive for Renault Logan 1.6 8 valve engine

The timing drive on Renault Logan 1.6 8 valves is carried out according to the following scheme (image just above) - torque from the crankshaft pulley is transmitted to the camshaft pulley, rotating the coolant pump pulley. The belt is tensioned with a special roller, which changes along with the timing belt. If the belt breaks, the valve bends.

Therefore, in accordance with the vehicle maintenance regulations, we check the condition of the belt every 15 thousand km. The surface of the toothed part of the belt should not have folds, cracks, undercuts of teeth and separation of fabric from rubber. The reverse side of the belt should not have wear, exposing the cord threads, or signs of burning. There should be no delamination or fraying on the end surfaces of the belt. The belt must be replaced if traces of oil are found on it. Regardless of the condition of the Renault Logan timing belt, it is necessary replace every 60 thousand km.

Engine specifications Renault Logan 1.6 8 valves

Working volume – 1598 cm3
Number of cylinders – 4
Number of valves – 8
Cylinder diameter – 79.5 mm
Piston stroke – 80.5 mm
Timing drive - belt
Power hp (kW) – 87 (64) at 5500 rpm. per minute
Torque – 128 Nm at 3000 rpm. per minute
Maximum speed – 175 km/h
Acceleration to the first hundred – 11.5 seconds
Fuel type – gasoline AI-92
Fuel consumption in the city – 10 liters
Fuel consumption in the combined cycle – 7.3 liters
Fuel consumption on the highway – 5.8 liters

The engine has a long service life and is completely unpretentious. The main thing is to change the timing belt on time, which is perhaps the main weak point of the engine.

This procedure on some foreign car models presents many difficulties for car enthusiasts. That’s when you remember with nostalgia the VAZ nines and fives – it’s simple there.

When to change the timing belt on Renault Logan

The frequency of replacing the timing belt on Logan is set to every 60 thousand kilometers or once every 4 years, according to the repair manual. Along with the belt, the tension roller also changes.

Renault Logan before 2010 and after 2010 had different timing belts installed. The presence/absence of air conditioning or power steering also matters. Based on this, it is necessary Before purchasing, check the suitability of the belt Timing belt on a specific car.

How to change the timing belt Logan

And so, in order to replace the Renault Logan timing belt, you will first have to dismantle the plastic protective shields, loosen the tension roller nut and remove the auxiliary unit belt. We loosen the crankshaft pulley bolt, and then remove the pulley. The timing belt is already visible. To access it you need to dismantle the top and required covers. The upper engine mount must also be dismantled to facilitate access to the timing mechanism. Before that you need to remove the engine protection and place a stop under the oil pan. Next, dismantling the upper support is easy.

Don't rush to remove the belt! Align the timing marks so as not to disturb the valve timing.

You can rotate it by the wheel (including fifth gear), or you can also turn it by the crankshaft pulley bolt. It's simple but important. The mark on the camshaft timing pulley is compatible with the mark on the cylinder block cover. There may not be a mark on the block, but since our engine is working properly, we make a mark.

Now you can remove the belt. The new belt also has marks to make installation easier. The belt marks must match. Let's turn the timing belt again, make sure everything works as it should. Let's check the belt tension. We try to twist it, if it works angle of 90 degrees or more - the tension is weak. After a thousand kilometers, we check the timing belt tension again.

Replacing the timing belt Renault Logan 1.6 l. (8 valves) It’s a simple procedure, but there are some peculiarities to this process. Renault Logan was equipped with two engines with 8 valves. This is a 1.4 liter unit and another 8-valve unit with a volume of 1.6 liters. This power unit has been installed on Russian Logans from 2005 to the present day.

The belt should be replaced at least once every 60 thousand kilometers. You should not ignore replacing the timing belt, because if the belt breaks on an 8-valve Renault Logan engine, the valves bend. Repairing the cylinder head will cost you significantly more than replacing the timing belt. The 8-valve engine has only one camshaft, so changing the belt is easier than with the 16-valve version with two camshafts.

Replacing the timing belt Renault Logan 8 valves

Timing drive device for Renault Logan 8 valve engine

1 - crankshaft toothed pulley
2 - camshaft gear pulley
3 - timing belt
4 - tension roller
5 - coolant pump toothed pulley

The procedure for replacing the timing belt on this engine is as follows -
1 — Unscrew the six bolts securing the upper timing belt cover, then remove the upper timing belt cover.
2 — Unscrew the bolts securing the lower timing belt cover and remove it. Using a 18mm socket, unscrew the crankshaft pulley mounting bolt, then remove the pulley.

3 - Now it is necessary, without removing the belt, to rotate the camshaft pulley until the marks on the cylinder head and the camshaft pulley align, as shown in the photo. That is, set it to TDC (top dead center).

Now it is necessary to block the crankshaft in the TDC position of the pistons of the 1st and 4th cylinders. For this purpose, in the cylinder block of the Logan 8-valve engine there is a special technological plug under the emergency oil pressure indicator sensor (next to the first cylinder). We unscrew the plug and screw in a special bolt with a long thread of at least 75 mm; this will not allow turning the crankshaft clockwise.

Without turning the crankshaft, unscrew the timing belt tensioner roller and remove the belt. When replacing a belt, the roller must be changed. When installing a new belt, a special wrench (with two horns) is required to tension the timing roller (suitable for Lada models). After you have installed the new belt, you need to check it for tension. Look at the next photo.

If you can twist the belt by more than 60-70 degrees using your thumb and index finger, it means the belt is loose and needs to be tightened further. Check the belt tension in the place between the camshaft pulley and the coolant pump. It’s also not worth tightening the belt, as this can shorten the life of the belt itself and the pump. After tensioning the belt, do not forget to unscrew the bolt from the technological hole.

To final check the correct installation of the Renault Logan 8 valve belt, turn the drive; after a full revolution of the camshaft pulley, the timing marks should coincide. If the marks are set incorrectly, the engine will not operate normally.

For reference, the 1.4 and 1.6 liter 8-valve engines differ only due to the larger radius of the crankshaft crank and, therefore, the larger piston stroke.

The service book for Logan family cars will indicate that the timing belt needs to be changed at 60 thousand. But there is information that the frequency of replacing the timing belt on Renault Logan is 4 years. You just have to watch what exactly comes first. And according to the regulations, several other parts are always replaced along with the belt, and not all of them relate to the drive mechanism. We will try to list them further.

The original timing belt and consumables are in the video below.

Articles

Belt + tensioner pulley kit for different 8-valve valves:

For internal combustion engine K7M (K7J) 710 – 7701477024, width 17.3 mm, number of teeth 96;
For internal combustion engine K7M (K7J) 800 – 130C17480R. The difference between the two sets is small.The belts are the same, the rollers are different.

Set “belt + two rollers (tensioner, guide)” for 16-valve internal combustion engines:

K4M 690 or 697 – 130С17529R, 27.4 mm, 132 teeth.

All articles were taken from the Renault catalog.

Set for 16 valves

Replacement schedule (frequency by plant)

Know that the timing of replacing the timing belt on Renault Logan does not depend on the engine model. The manufacturer recommends:

Inspect the timing belt and adjust the tension - every 15,000 km;
Replace even if there are no defects - every 60,000 km or once every 4 years.

The information listed applies to first and second generation models. For Logan sedans of the “3rd” generation, everything may look different.

Replacement timing according to the experience of the owners

Those who change the belt say this: there are no abrasions or delaminations after 60 thousand.

Old and new timing belt

The belt itself is designed for 90-120 thousand. But videos are a different matter. They can only be removed and cleaned, but it is better to replace them. Otherwise:

Loosening the tension will cause the belt to jump 1 or 2 teeth. This is not uncommon for 16-valve engines;
A jammed roller doesn't do any good either.

The water pump is usually changed after two hundred thousand km. But the regulations provide for a different figure – 120 thousand. Make your own choice.

Adjustment

Tension can be adjusted in different ways. On the K4M motor, you need to unscrew the screw with a “13” key. Then a hexagon is installed in the slot on the roller (see figure). One edge is 6 mm.

Automatic timing belt tensioner

By turning the hexagon, the rectangular marks coincide. Then the screw is tightened again.

As for 8-valve engines, there is no “automatic tensioner” here. Everything is adjusted manually. First, loosen the fastening using a 16mm wrench.

Tension roller, 8-valve Renault

Using a special key shown in the photo, the roller is turned to the right or left and the desired tension is obtained. The mounting screw is then tightened.

The special tool in question is a key for 8-valve VAZ engines. Good luck with your choice!

Review of a set of original timing spare parts for Renault Logan

Replacing the timing belt on a Logan takes about two hours, saving about one and a half to two thousand rubles. The process will require some specific tools, so it is advisable to prepare for the procedure.

The content of the article:

To begin with, it’s worth talking about basic things. The manufacturer regulates the replacement of the timing belt every 60 thousand kilometers, while guaranteeing a mileage of 70 thousand uncritical and, let’s say, calm. But for most, the timing belt dies after 50 thousand kilometers.

As for the belt itself, it is better to spend 500 rubles more and buy the original, because many duplicates simply do not match the marks. For this engine this is critical, because the marks are located on the belt, and what’s more, the engine also really likes to bend the valves.

Tools that will come in handy

Replacing the timing belt on a Renault Logan 1.4, as mentioned above, requires a certain set of tools. First of all, these are keys and heads for 16 and 8. This is the size of the bolts that the French company chose.

In addition, a small ratchet with a 10mm head, as well as a device for tensioning the rollers, will be useful. So, let's proceed directly to replacing the timing belt on a Logan 1.4 liter, 8 valves.

Removing the timing belt on an 8-valve Logan

To begin with, jack up the front right wheel, then unscrew one self-tapping clip on the top right, and the second clip on the lower edge of the bumper. Next, we simply pull the plastic protection towards us, pull it to the side, wrap it down, it is not necessary to remove it completely. Now that we can freely get close to the crankshaft bolt, but for now we don’t touch it. We first need to loosen the alternator belt, which is tensioned by the tensioner. In general, there should be a tension bolt, first unscrew the two fixing ones, and then unscrew the tension bolt, the tensioner will go up, which will allow you to remove the drive belt. Now we can safely remove the crankshaft pulley.

In order to prevent the crankshaft from turning, you can place an assistant in the cabin; he must engage fifth gear and hold the brake pedal depressed. In this case, it is most difficult to turn the wheels with the crankshaft. By the way, the crankshaft bolt is 18, the French are so interesting.

Now let's go to the top. Here we need to remove the cushion in order to gain access directly to the timing belt casing. The problem is, as many people believe, that the engine will collapse when the mounting bolts are unscrewed, which is actually not true - the engine will either lie on the protection, or a metal plate about 1 cm thick can be laid between the sump and the crankcase protection. Then the engine will definitely remain on place.

Using a 16mm socket, unscrew the three bolts securing the airbag to the engine and the two bolts to the body. The order doesn't matter. We remove the pillow and gain access directly to the engine. Now you need to remove the top cover. It is secured with three 13 and one 10 bolts, it is slightly hidden at the bottom. This is where a ratchet comes in very handy. Don't be afraid if the 13 bolts turn tight, this is normal. To remove the cover, you need to turn it slightly counterclockwise to release it from the mounting ear.

Well, now you need to remove the lower part of the casing, it is plastic. It is better to unscrew two 8 bolts from above, and two from below. The cover is easy to remove. For the finishing line, you need to remove the tension roller. But first, we engage fifth gear and turn the front left wheel until we see the camshaft mark at the top. Her position is not important, the main thing is just to see her. There is an opinion among people that there is a mark on the head, yes there is, but it is not important, what is important is the coincidence of the crankshaft/camshaft marks. Therefore, when we saw the mark, we unscrew the tension roller with a 17 wrench, remove the old timing belt, and install a new one.

Installing a new timing belt on Renault Logan 1.4

So, we are at the finish line, which is quite short. We take the belt in our hands and find the direction arrows. They should face the front of the vehicle when installed. As for tags, everything is simple with them, not as complicated as many people think. We take the belt in our hands and find the transverse marks on it. Each of them is designed for its own shaft. So, the one that is duplicated on the inside of the belt is put on the crankshaft gear, and the one that is not duplicated on the inside is put on the camshaft.

We install the timing belt, having first checked the condition of the pump and tension roller, after which we tighten the roller using a Torx, a ratchet, or just a Torx wrench. We turn the crankshaft 2 turns - this is a full working cycle, if there are no obstacles, then we simply put them in place; if there are obstacles, then it is advisable to check the alignment of the marks, or simply reinstall them.

Video: replacing the timing belt on Renault Logan 8 valves