The gas distribution mechanism is veryresponsible node in any engine. Earlier it was activated by means of a chain. Now most manufacturers are inclined to install a belt drive. This drive timing is quieter in operation. In addition, the timing belt replacement (Renault Logan 8 valves is no exception) is made much easier than the dismantling and installation of the chain. Well, let's consider how to perform this operation yourself.
Manufacturer notes the regulation of 90 thousandkilometers. However, operational experience shows that the resource of this belt is no more than 60 thousand. By this time on it there are serious cracks and tears. At the appearance of at least one of them, a complete replacement of the belt is required. By the way, the belt drive is powered by a generator. "Renault Logan" (namely the battery) is charged on the move from the crankshaft rotation energy. The resource of this element is more than 100 thousand. The main sign is the whistling of the belt. In this case, the generator will not work. "Renault Logan" will quickly be discharged. As for timing, its belt wears out around the teeth. Especially, it experiences high loads at high speeds. Sometimes the element jumps to 1 tooth. As a result, the camshaft timing shifts. Ignition failures are observed, the machine consumes more fuel. Significantly reduced power and dynamics.
Note that the timing belt drive is notis installed on the Renault Logan 1.4. Here, as a driving mechanism, a chain is used. It is more reliable. Previously, this drive was used on 90% of cars. The resource of the chain drive is about 300 thousand. However, replacing it is much more difficult. And the car "Renault Logan" works much more noisily, rather than one with a belt.
What should I fear when I break the last one? First of all, this is the wrong operation of the valves. There is a risk of breaking the engine. "Renault Logan" is a very reliable car, but the valves can be open at the moment when the piston is in the TDC. As a result, both elements are in contact with each other. The valve bends. The following picture is obtained.
The price of repair in this case is comparable tohalf the cost of the motor itself. To maintain the valve mechanisms, it is required to check the condition of the belt regularly (no less than once every 15 thousand kilometers). If necessary, make a replacement.
The price of a new belt on the Renault Logan isabout 600 rubles. The cost of replacement in SRT ranges from 5 to 10 thousand rubles. Naturally, given the price of repairs, the question arises of an independent installation of this mechanism. It is not difficult to do this.
So, let's look at how thecar "Renault Logan" replacing the timing belt with their own hands. First you need to open the hood and unscrew the plastic drive cover. Next, you need to subdivide the front of the car. The work will be done on the right side of the engine, so we raise this part. How is the timing belt replaced by Renault Logan? After that, remove the wheel and remove the crankcase protection. It is fixed to several bolts. Also the power unit is protected by a plastic mudguard.
We also extract it. It is better to use a ratchet collar with a set of heads. This will significantly speed up the replacement process. After dismantling the plastic mudguard, the crankshaft pulley bolt must be removed. To do this, you need a key "for 18" with a long collar. Pay attention - on the "neutral" bolt will scroll. To fix the crankshaft, engage the fifth gear. If the bolt and then scrolls, call the assistant, so that he pressed the brake pedal. At this point, it is necessary to break the pulley fasteners. Then it is necessary to remove the engine support. How is the timing belt replaced by Renault Logan? Then remove the drive belt. Also we need to dismantle the tension bolt bolt (use the keys "for 10" and "for 13"). We remove the roller from the pump of the hydraulic amplifier. To do this, rotate it clockwise.
This is a very important point. To properly install the belt, we need to turn the camshaft mark up.
It must match the one on the belt.
After that, unscrew the nut of the tension roller andwe remove the remaining attachments. On the new belt and on the roller, we find the marks. They must coincide with those that exist on the old drive element. It is important to follow the direction of the belt. Pay attention to the arrows. They should rotate in the course of the camshaft gears. Combine the marks on the gear and belt. Tighten the roller spring by placing a screwdriver in the hole. We install it on the engine. "Renault Logan" continues to stand still. Remove the screwdriver from the roller. The latter should make a characteristic click (this means that the spring has worked). So, the belt will successfully stretch.
Next, we check to see how well it was tightenedbelt and whether its positions coincide with the marks (the valves do not come into contact with the piston). We remove the car from the transmission and rotate the crankshaft. It should rotate freely.
In the TDC of the piston, you should not feel resistance. If so, check the position of the gear with respect to the teeth of the belt.
The tensioning roller is tightened with a force of 27 Nm. To do this, you need to use a torque wrench. It looks like this.
Its cost is about 2-3 thousand rubles. It is important to observe the tightening torque. Otherwise, the belt may loosen. Experienced motorists warn: if you pull the roller, you can break the bolt - part of it will remain in the cylinder block. In such a situation, it is extremely difficult to stretch it (except weld an iron rod and use it as a key).
Once in 15 thousand kilometers is required not onlylook at the condition of the belt itself, but also check its stretch so that it does not jump to the tooth. So, dismantle the cover of the timing case and using a key with a long collar, turn the crankshaft pulley by 1 turn clockwise. A correctly tensioned belt should be rotated 90 degrees from the force of the fingers, applied between the pulleys of the distributor and the crankshaft.
What if the belt is weak? Remove the tensioning nut nut. Turn it counter-clockwise by 10-15 degrees. If there is no special button, you can use 2 drills. Install them in the holes of the roller and twist the last screwdriver. What's next? Tighten the nut of the roller fastening and again check the tension. If the element is drawn, turn the nut clockwise.
Now you know how to make a car"Renault Logan" replacing the timing belt with their own hands. As you can see, the procedure can be performed independently. The main thing is not to start the engine if there is resistance to the pistons.
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