Why is the ssangyong action chain stretched. Features of the SsangYong New Action chain. Replacing the chain drive yourself

The SsangYong New Action timing chain is, in the truest sense of the word, a chain designed for proper gas distribution, timely opening and closing of valves. The pulley is equipped with marks that allow you to rationally set the position of the crankshaft in relation to the camshaft. The SsangYong New Actyon timing chain is used on gasoline and diesel engines. It is quite difficult to break it, unlike the belt. But in the process of wear, it can stretch a few centimeters. The entire operation of the engine depends on the smooth operation of the chain, it is worth carefully monitoring the mechanism and replacing it in time when worn.

The most common problem is chain pulling, causing it to jump several links and break. In the event of a break, the pistons meet the valve, which threatens to overhaul the engine.

Timing chain SsangYong New Actyon g20d (gasoline) - advantages of the mechanism

The main advantages that can be attributed to the timing chain SsangYong New Actyon g20d (gasoline):

  • the mechanism has the highest resource;
  • has a high resistance to external factors. She is not afraid of water, dust, dirt, various temperature changes;
  • the timing chain can be installed with precision in each mark, respectively, independently adjusted, and therefore fine-tuned, which contributes to a more rational control of the intake and exhaust valves. Even if it is already stretched, the valves do not burn through and do not coke, which is very important;
  • significantly increases the life of the chain that it is constantly in oil;
  • if there is a place for a workable SsangYong New Actyon chain tensioner, then it will not jump a tooth forward, no matter what mode you have to work in. The timing chain is highly resistant to heavy loads and is able to withstand the highest speeds;
  • durability. The timing chain is able to last 300-500 thousand km without any type of repair work. Of course, it is necessary to visually view the mechanism in order to determine deviations in work in time.

Speaking about the disadvantages of the chain mechanism, it is worth mentioning its noise, which is several times higher than on a belt drive. The downside is also the complexity and high cost of replacing the SsangYong New Actyon chain. When replacing, you will need to purchase a set of spare parts with various sprockets, tensioners and slats. It would be more rational to contact a specialized salon and replace the chain mechanism there. Experienced professionals will do the job faster and better. Independent performance of this manipulation does not guarantee the further quality of the work of the new mechanism. If the chain is not properly laid and aligned, it will quickly fail, which can lead to even more adverse problems.

Replacing a timing chain with a SsangYong New Actyon is a painstaking and time-consuming job, not every experienced car owner can do it. If you are not confident in your abilities, it is better to contact the service station and trust the professionals.

Today we’ll talk about how to replace the timing chain in Ssangyong Actyon cars with your own hands. I think all SsangYong Aktion owners know the problem of chain jumping due to chain stretching. You can make a self-diagnosis by removing the valve cover and evaluating the condition of the circuit.

How much does a timing chain and its replacement cost?

The original timing chain with the number 1729970094 (for gasoline) costs around 12 thousand rubles, by the way it is made in China. Having called official dealers, it was found out that the procedure for replacing it ranges from 17 to 30 thousand rubles. It turns out not the cheapest repair, if you trust professional craftsmen. But you can save a lot. A lot of Ssangyong Actyon owners have installed a chain from UAZ produced by the Czech CZ. Its reliability has been verified, it is even put on the Hammer. One chain for 84 links costs an average of 800 rubles, you need to buy two sets and make 146 links from them like the original one.

40904.1006040-01 / 18049 part number of the chain for 84 links from CZ, which is installed on UAZ vehicles.

This is how the device for disassembling and assembling the circuit looks like:

You can order from ALI Express or make chains for a bicycle from squeeze.

Video replacement of the timing chain in Ssangyong Actyon by G20D tags:

For ease of viewing, we recommend expanding the video to full screen. The chain was recently replaced on this car, but the camshafts were installed incorrectly, there was a backlog of one tooth. At the same time, the Chek Engine did not burn on the panel, but there was weak acceleration, power was lost. After setting the labels, the problem disappeared. The author of the video does not comment on the progress of the work, but text annotations are inserted in the video that explain incomprehensible points.

Video how to replace a chain in a Ssangyong Actyon with a broach:

Several disparate videos from an experienced minder were glued into one, removing minor points.

This article will focus on the timing chain, abbreviated timing.

Timing chain functions

The timing chain on the SsangYong Actyon links the crankshaft and camshaft(s) together, and also ensures their rotation is synchronized. In terms of functionality, the timing chain is no different from the belt, ensuring the timing works on the principle of gears on a bicycle.

Timing chain for SsangYong Actyon.

Camshaft without timing elements.

Timing Chain Myths

There is an opinion that if your engine does not have a belt (timing), but a chain, then you don’t have to worry at all - it’s a steel chain, after all! The chain, without any doubt, is much more resistant to external factors (water, oil, dust) than the belt, but it is not at all eternal - it wears out like any part of your car. Only the chain, unlike the belt, does not have a replacement procedure, that is, you will have to navigate “by feeling”. For example, on a SsangYong Actyon car, the timing chain is a real headache! After all, already at 30 thousand mileage it can fail!

How to determine that the chain is living out its last kilometers?

We have already figured out that the chain does not have immortality, so how does it “die”? Consider the SsangYong Actyon as an example, since this problem is most common here. During operation, the chain wears out - it stretches and begins to emit a "clunk". Important! The chain always makes noise during operation, but due to modern soundproofing, you most likely did not notice it, if you have any doubts about strange sounds in the engine area, it is better to contact a car service. If your chain on the SsangYong Actyon is stretched (it is also relevant for other cars), at first it will emit a “clunk” when starting “cold”, and when the situation worsens, it will emit it constantly. In a completely running situation, the chain can “jump”, and then your car will stall and will not start without replacing the chain.

This is what a stretched chain looks like. It becomes completely "wooden".

Approximate composition.

Comparison of a stretched and "healthy chain"

What causes a timing chain failure?

Unfortunately, the noise from under the hood is not all that threatens you and your car. Above, we described the variant of a chain jump, due to which the car stalls “tightly”. This course of events is much more dangerous than it might seem, imagine that you stall not in the parking lot near the house, but on a busy highway, the picture immediately changed, right? In fact, it’s even worse, because when the engine stops working, the following happens:

  1. The brakes fail. When the engine stalls, the vacuum brake booster stops working. Some will say that our fathers and grandfathers drove cars without any amplifiers, and there were brakes. That's right, but the brakes were designed without an amplifier, that is, designed for human power. Those who have a modern car stalled on the go will say that it feels like there are no brakes at all.
  2. Wedge steering wheel. When the engine stalls, the power steering stops working. In reality, the steering wheel does not stick, but it feels exactly like that, since it takes a lot of effort to make the car turn. Owners of cars with electric power can relax, it does not concern them.

Thus, jumping the chain can send your car to a body repair, and you to the intensive care unit. So no matter what you have: a chain or a belt, both of them need regular monitoring and timely replacement.

On some cars, when the chain jumps, the pistons bend or even break the valves. Fortunately, this does not apply to SsangYong Actyon, because. we have never seen a single car with bent valves. But damaged camshaft gears are encountered periodically, and taking into account the fact that one of them is with a phase shifter, this still increases the already not small cost of repair.

What to do to avoid problems with the timing chain?

Unfortunately there is no good solution at the moment. The problem cannot be avoided. It remains to carefully monitor the condition of the chain and change it when stretched.

There is very little space for repairs in the car, which is not at all a plus and greatly complicates the repair, and also prolongs it. Usually, replacing a chain with a SsangYong Actyon takes about a day and is quite expensive, due to the fact that, firstly, there are no good analogues of the chain, and the original, to be honest, leaves much to be desired, and secondly, for reasons related to complexity this process. And we leave all the "Kulibin" methods of repair to the "Kulibin" at their own peril and risk.