Adjust the valves as often. Valve adjustment: what is it for and how often it needs to be done. When to adjust wheel alignment

5 years ago

Welcome!
Valve adjustment - of course, most people know what this process is and why it needs to be regularly performed on some cars, for example, on the "Classic", but there are people who do not know anything about this and want to understand this issue, therefore, especially for such people this article was prepared from which you will learn a lot. And if something becomes unclear to you, then write a comment with your question at the very bottom of the site and we will answer it in the near future.

Note!
And in addition, at the end of the article you will find an interesting video clip, thanks to which you will understand a lot for yourself in adjusting the valve drive!

Why do you need to adjust the valves?

Their adjustment is necessary in order for the machine to work more steadily both at high and low revs engine. Because, as a rule, due to improper valve adjustment, the gaps that should be between the camshaft cam and the valve itself are violated, which leads to too much valve opening when the engine is running and as a result of which depressurization occurs in the cylinder, which in turn can adversely affect the engine resource ...

Note!
In the event that the gap between the valve seat and the side particles of the cylinder has become very large (see the photo below, this gap is marked there), then in this case the valve may burn out, and also if at the same time the piston stroke is very large then it may occur meeting of valves with the piston itself when the engine is running. Therefore, the valves must be adjusted periodically and with great care, since incorrectly set gaps during adjustment can again adversely affect the engine resource!

How will the valves work if the clearance is incorrectly set?

In this case, as mentioned earlier, the work of the valves is disrupted, in connection with this, the valves either start to open a little more than it should be, or they start to be in a permanently open position, due to which the sealing in the cylinder disappears, for clarity, see the photo below on which the adjustment of the valves is violated and in connection with which the valve is in a constantly open mode.

How to get rid of the valve adjustment?

They never asked themselves the question: "Why, for example, on a 16-valve prior, it is not necessary to adjust the valves?" And the thing is that in the engine there are priors instead of the "Pusher" due to which the cam camshaft pushes the valve, there are "Hydro-compensators" which, in turn, due to high pressure oils find the optimal clearance between the cam and the "Hydro-compensator" of the valve itself, and therefore the valves always operate at the optimum clearances.

Note!
By the way, "Hydro-compensators" can be installed on almost any car, and therefore you can forget about adjusting the valves, but there is one thing But! "Hydro-compensators" can be installed only on cars in which the "Gas Distribution Mechanism - aka Timing" consists of a camshaft, a crankshaft, as well as valves and piston group- in fact, this is the main part of cars!

Many motorists have encountered the process of adjusting the VAZ-2114 valves at a car service or carried out this operation with their own hands. But, not everyone knows after what period of time it is necessary to carry out this operation.

The video below will tell you about adjusting the valves on the VAZ-2114:

Diagram-device of the valve and elements for adjustment

Valve clearance adjustment process

According to the regulatory and technical documentation and the practice of motorists, the valves must be adjusted every 15,000-20,000 km or when necessary.

Adjusting washer. With the help of it, the valve clearance is adjusted.

Special shims are used to adjust the valves. There are 125 sizes of them, but only a small number have found applicability.

Consider which ones: 3.30, 3.35, 3.40, 3.45, 3.50, 3.55, 3.60, 3.65, 3.70, 3.75, 3.80, 3.85, 3.90, 3.95, 4.00, 4.05, 4.10, 4.15, 4.20, 4.25, 4.30, 4.35, 4.40, 4.45, 4.50;

Consequences of untimely adjustment

It is known that the untimely carrying out of any operation for the repair and maintenance of a car entails certain consequences, which can be, in one case, mild, and in the other, fatal for power unit... So, let's consider the main ones:

1. Deterioration of parts and assemblies of the cylinder head, namely the gas distribution mechanism.
2. Camshaft wear.
3. Partial or complete destruction of pushers.
4. In a separate case, it leads to a break in the timing belt and the corresponding consequences, such as. !

conclusions

The valve on the VAZ-2114 should be adjusted no later than after 20,000 km of run... Untimely adjustment work can lead to unexpected and destructive consequences. Therefore, the car enthusiast must follow the manufacturer's recommendations.

5 years ago

Welcome!
Valve adjustment - of course, most people know what this process is and why it needs to be regularly performed on some cars, for example, on the "Classic", but there are people who do not know anything about this and want to understand this issue, therefore, especially for such people this article was prepared from which you will learn a lot. And if something becomes unclear to you, then write a comment with your question at the very bottom of the site and we will answer it in the near future.

Note!
And in addition, at the end of the article you will find an interesting video clip, thanks to which you will understand a lot for yourself in adjusting the valve drive!

Why do you need to adjust the valves?

Their adjustment is necessary in order for the machine to work more steadily at both high and low engine speeds. Because, as a rule, due to improper valve adjustment, the gaps that should be between the camshaft cam and the valve itself are violated, which leads to too much valve opening when the engine is running and as a result of which depressurization occurs in the cylinder, which in turn can adversely affect the engine resource ...

Note!
In the event that the gap between the valve seat and the side particles of the cylinder has become very large (see the photo below, this gap is marked there), then in this case the valve may burn out, and also if at the same time the piston stroke is very large then it may occur meeting of valves with the piston itself when the engine is running. Therefore, the valves must be adjusted periodically and with great care, since incorrectly set gaps during adjustment can again adversely affect the engine resource!

How will the valves work if the clearance is incorrectly set?

In this case, as mentioned earlier, the work of the valves is disrupted, in connection with this, the valves either start to open a little more than it should be, or they start to be in a permanently open position, due to which the sealing in the cylinder disappears, for clarity, see the photo below on which the adjustment of the valves is violated and in connection with which the valve is in a constantly open mode.

How to get rid of the valve adjustment?

They never asked themselves the question: "Why, for example, on a 16-valve prior, it is not necessary to adjust the valves?" And the thing is that in the engine the priors instead of the "Pusher" due to which the cam of the camshaft pushes the valve, there are "Hydro-compensators" which, in turn, due to the high oil pressure, find the optimal gap between the cam and the "Hydro-compensator" valves and therefore valves always operate at optimum clearances.

Note!
By the way, "Hydro-compensators" can be installed on almost any car, and therefore you can forget about adjusting the valves, but there is one thing But! "Hydro-compensators" can be installed only on cars in which the "Gas Distribution Mechanism - aka Timing" consists of a camshaft, a crankshaft, as well as valves and a piston group - in fact, this is the main part of cars!

The alignment procedure is carried out to eliminate and prevent problems with handling vehicle... If the wheels are incorrectly tuned, the car will react weaker to the steering wheel movement, it will be difficult to enter the turns, there is a problem of rapid tire wear (in some cases, the wear threshold may be 500 km). Currently, camber adjustment is made only at specialized service stations. Contrary to the opinion of some car owners, this procedure cannot be done at home.

What is wheel camber?

Camber - the angle of deflection of the wheels along the vertical axis. Positive camber occurs if the angle formed by the upper parts of the wheels is greater than the lower ones. This camber is used on loaded trucks to compensate for angle differences. Negative camber occurs when the angle of the upper parts of the wheels is less than the lower ones. This camber is used to stabilize the vehicle when cornering at high speeds. Most preferred is zero camber, where the angles of the tops and bottoms of the wheels are the same. This camber provides the city car with controllability and reduces tire wear. Toe-in is also positive and negative. With positive toe-in, the front of the wheels is less spaced than the rear. If negative, on the contrary, the rear of the wheels are closer. Correct toe adjustment is extremely important, as incorrectly set toe can increase tire wear several times.

Signs of incorrectly set wheel alignment:

Despite the fact that the camber is regulated only on professional equipment in the service station, you can independently diagnose the correctness of its adjustment. Below we give a few signs that indicate the need to adjust the camber:

• there is a squeal when cornering at high speed
• the car moves in a straight line only after the steering wheel is deflected to the side
• without fixing the steering wheel, the car pulls to the side
• rapid tire wear

When should the wheel alignment be adjusted?

There are a number renovation works, after which adjustment of the camber is required without fail:

• after installing a new ball joint
• when replacing the steering rack or steering tip
• after replacing and installing a new CV joint

To carry out the camber adjustment, we recommend that you use only high-quality spare parts that you can find in the IXORA store. Qualified managers will definitely help to make right choice, will answer all your questions. Contact us, it is profitable and convenient.