In this article we will talk about how you can replace the timing chain on a SsangYong Actyon. We will be talking about a gasoline engine. The timing chain transmission is very important. It ensures uninterrupted opening of the valves and synchronizes the operation of the shafts. The chain gradually wears out, like other consumables. If tightening the chain drive no longer produces the desired results, it means that it has been stretched to its limit and now needs to be replaced. If this is not done, the chain may even break. Then the synchronization of the movement of the shafts will cease to be carried out, the valves will hit the pistons, which will lead to their deformation. After this, the car will have to be seriously repaired, so it is better not to let the chain break.
Let's now look at what the timing assembly consists of:
- camshaft;
- valve system;
- valve bushings;
- clamps;
- drive unit.
The drive serves to power the entire system. Different cars use a belt and chain as a drive. The chain drive fits onto the gears of the camshaft and crankshaft. It must be said that now manufacturers are less likely to use chain drives, which are being replaced by timing belts.
The most serious thing that can happen to the drive is its breakage. Of course, this happens much less often with a chain than with a belt, but the chain drive can still stretch, and this is also a serious cause for concern. Due to the high temperature, the chain drive links are stretched and the pitch between them increases. A stretched chain will definitely knock, and the closing and opening of the valves will no longer occur in a timely manner. Because of this, fuel will enter the combustion chamber at the wrong time, which will certainly lead to a loss of engine power. In addition, fuel supplied at the wrong time will cause early wear and tear on the engine, and it will fail very soon.
Diagnostics and maintenance
In order to determine the condition of the chain drive, it is sometimes necessary to diagnose this unit. It is recommended to do this after 25,000 km. Here are some signs of chain drive wear:
- The chain began to make a lot of noise. This noise may be accompanied by rattling or knocking.
- Untimely fuel injection into the system begins to occur. This means that unburnt fuel is forced to burn out in the muffler.
Yes, we can talk about some disadvantages of chain transmission, but despite this, it also has certain advantages. The main one is a fairly long validity period. The chain will last longer than the belt. It can work without replacement for 4 years or 150,000 km. But still, sometimes the chain fails, so it, like the belt drive, needs periodic replacement.
Replacing the chain drive yourself
First, you should prepare everything you need to replace the chain - this is a set of tools and consumables that need replacement. During the repair process you will have to rotate the crankshaft. There is a special key for this procedure. Try to have it available as well.
First you need to remove all parts that interfere with the repair process. These include:
- radiator grille;
- air filter;
- carburetor (there is no need to remove the entire carburetor; you can only dismantle the head);
- radiator (before removing it, do not forget to drain all the fluid).
It is better to carry out repairs in the inspection hole. This will make it much more convenient to perform some actions. Now we unscrew the cylinder head casing. We insert a special key into the grooves of the crankshaft. It must be turned until the mark on the camshaft pulley is located opposite the ebb on the shaft bearing.
Now we loosen the tension on the generator drive and the water supply pump. We remove the drive. Together with it, we dismantle the pump pulley for the water supply pump. Now we put the car on the handbrake, and in the gearbox we turn on fourth gear. This must be done at least to ensure that the car is securely fixed. The need for this is dictated by safety regulations.
There is a washer on the camshaft pulley. It needs to be bent. The pulley fastening should be loosened.
After this, remove the chain tensioner. We unscrew the fasteners of the upper sprocket. After this, the gear can be removed along with the chain. The bolt that holds the camshaft sprocket must be unscrewed completely. The chain has now been removed. You can begin installing a new consumable.
Attention! Don't forget to remove the camshaft oil seal housing. This can only be done by removing the camshaft pulley and draining all the oil from the system. When the chain is removed, be sure to check the alignment of the coils on the cylinder block and the crankshaft gear. If there is no coincidence, rotate the crankshaft until the marks are completely aligned.
First we put the new chain on the crankshaft gear. After this, the gear is fixed with a bolt. We pull the rest of the chain through with a hook.
The camshaft sprocket is now under the chain. We twist it. But before this, you should definitely check the alignment of all marks, especially on the camshaft. Now it is already possible to install the tension device, dampers and other parts of the assembly. The crankshaft oil seal housing is also installed in its place. After this, oil is poured into the system.
Today we’ll talk about how to replace the timing chain in Ssangyong Actyon cars with your own hands. I think all owners of SsangYong Aktion are aware of the problem of chain jumping due to its stretching. You can carry out self-diagnosis by removing the valve cover and assessing the condition of the circuit.
How much does a timing chain and its replacement cost?
The original timing chain with number 1729970094 (for gasoline) costs around 12 thousand rubles; by the way, it is made in China. After calling official dealers, it was found that the procedure for replacing it ranges from 17 to 30 thousand rubles. It turns out that repairs are not the cheapest if you trust professional craftsmen. But you can save a lot. A lot of Ssangyong Actyon owners have installed a UAZ chain made by the Czech CZ. Its reliability has been tested and is even installed on Hummers. One chain with 84 links costs an average of 800 rubles; you need to buy two sets and make 146 links out of them like the original one.
40904.1006040-01 / 18049 part number of the 84-link chain from CZ, which is installed on UAZ vehicles.
This is what the device for disassembling and assembling the circuit looks like:
You can order it from ALI Express or make it from a bicycle chain squeeze.
Video of replacing the timing chain in Ssangyong Actyon using G20D marks:
For ease of viewing, we recommend expanding the video to full screen. The chain on this car had recently been replaced, but the camshafts were installed incorrectly and there was a gap of one tooth. At the same time, the Chek Engine did not light up on the panel, but there was weak acceleration, and the power was lost. After setting the marks, the problem disappeared. The author of the video does not comment on the progress of the work, but the video contains text annotations that explain unclear points.
Video on how to replace a chain in a Ssangyong Actyon with a broach:
Several disparate videos from an experienced motor mechanic were glued together into one, removing insignificant moments.
In this article we will talk about the timing chain, abbreviated as timing chain.
Timing chain functions
The timing chain on the SsangYong Actyon connects the crankshaft and camshaft(s), and also ensures that their rotation is synchronized. The functionality of a timing chain is no different from a belt, ensuring that the timing belt operates on the principle of gears on a bicycle.
Timing chain for SsangYong Actyon.
Camshaft without timing elements.
Myths about the timing chain
There is an opinion that if your engine does not have a timing belt, 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 have to navigate “by feel.” 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 can you tell if a chain is reaching its last kilometers?
We have already figured out that the chain does not have immortality, so how does it “die”? Let's look at the example of SsangYong Actyon, since this problem is most common here. During operation, the chain wears out - it stretches and begins to make a “clanging” sound. Important! The chain always makes noise during operation, but due to modern sound insulation you most likely did not notice it. If you have doubts about strange sounds in the engine area, it is better to contact a car service center. If your chain on the SsangYong Actyon is stretched (this is also true for other cars), at first it will make a “clanging” sound when starting “cold”, and if the situation worsens, it will make it constantly. If the situation is completely neglected, the chain may “jump”, and then your car will stall and will not start without replacing the chain.
This is what a stretched chain looks like. She becomes completely “wooden”.
Approximate composition.
Comparison of a stretched and "healthy chain"
What are the consequences of a faulty timing chain?
Unfortunately, noise from under the hood is not all that threatens you and your car. Above we described the variant of chain jumping, 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 a parking lot near your house, but on a busy highway, the picture immediately changed, didn’t it? In fact, it's even worse, because when the engine stops working, the following happens:
- 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 boosters, and they had brakes. That's right, but the brakes were designed without taking into account the booster, that is, they were designed for human power. Those who have had a modern car stall while driving will say that it feels like there are no brakes at all.
- The steering wheel is jammed.
When the engine stalls, the power steering stops working. In reality, the steering wheel does not jam, but it feels exactly like that, since it takes a lot of effort to make the car turn. Owners of cars with electric power steering can relax, this does not concern them.
Thus, a chain jump can send your car to body repair and you to intensive care. So no matter what you have: a chain or a belt, they both 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 the SsangYong Actyon, because... We have never seen a single car with bent valves. But damaged camshaft gears occur periodically, and given that one of them has a phase shifter, this further increases the already considerable cost of repairs.
What to do to avoid problems with the timing chain?
Unfortunately there is no good solution at the moment. There is no way to avoid the problem. It remains to carefully monitor the condition of the chain and change it when stretched.
The SsangYong New Action timing chain is, in the truest sense of the word, a chain designed for correct 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 a belt. But as it wears out, it can stretch a few centimeters. The entire operation of the engine depends on the uninterrupted operation of the chain; it is worth carefully monitoring the mechanism and promptly replacing it if it wears out.
The most common problem is the chain stretching, which leads to it jumping several links and breaking. In the event of a break, the pistons meet the valve, which threatens a major overhaul of the engine.
Timing chain SsangYong New Actyon g20d (gasoline) - advantages of the mechanism
The main advantages that can be attributed to the timing chain of the SsangYong New Actyon g20d (gasoline):
- the mechanism has the highest resource;
- is highly resistant to external factors. She is not afraid of water, dust, dirt, various temperature changes;
- The timing chain can be installed with precision at each mark, accordingly, it can be independently adjusted, and therefore precisely adjusted, which contributes to more rational control of the intake and exhaust valves. Even if it is already stretched, the valves do not burn out or coke, which is very important;
- the fact that it is constantly in oil significantly increases the life of the chain;
- If there is room for a functional SsangYong New Actyon chain tensioner, then it will not jump a tooth forward, regardless of what mode you have to work in. The timing chain is highly resistant to heavy loads and can withstand high speeds;
- durability. The timing chain can last 300-500 thousand km without any type of repair work. Of course, it is necessary to visually inspect the mechanism in order to identify deviations in operation in a timely manner.
Speaking about the disadvantages of the chain mechanism, it is worth mentioning its noise, which is several times higher than with a belt drive. The downside is also the complexity and high cost of replacing the SsangYong New Actyon chain. When making a replacement, you will need to purchase a set of spare parts with various sprockets, tensioners and strips. It would be more rational to contact a specialized salon and replace the chain mechanism there. Experienced specialists will do the job faster and better. Performing this manipulation independently does not guarantee the continued quality of the new mechanism. If the chain is not laid and aligned correctly, it will quickly fail, which can lead to even more adverse problems.
Replacing the timing chain on a SsangYong New Actyon is a painstaking and time-consuming job that not every experienced car owner can do. If you are not confident in your abilities, it is better to contact a service station and trust the professionals.
