24.09.2021 - Automotive Spare Parts Turkey
Automotive Spare Parts Turkey

What You Need to Know About Valve and Valve Defects

What You Need to Know About Valve and Valve Defects

What is the valve?

valve; exhaust valves which are located on the upper part of the motor, that is in the upper lid of the motor, which allow the mixture of air and fuel to be opened at the appropriate moment according to the piston movements during the operation of the engine and to allow this mixture to be taken into the combustion chamber, i.e. the intake valves, nominal moving parts. They take their moving ability from the eccentric shaft.

How to Understand the Valve Malfunction What are the valve malfunction indications?

Valve malfunctions are usually caused by four basic reasons. Of these, the valve tire is malfunctioning. Valve tires are the part that prevents the motive oil from entering the combustion chamber. As a result of a problem with the valve tire, engine oil flows over the pistons. This may cause problems in future vehicle fuel.

Another problem is that the valves are broken or bent. This is a problem and a rare problem that arises as a result of the breakage of trigerrings or trigger belts. When the valves are opened and closed at the wrong time, they can be bent and broken by the pistons. Because of this, the car stops working and damages engine parts. By changing the valves, problems that arise can be removed.

Defects in the valve system manifest themselves in three ways.

1- Sound from the valve system, valve knocks

-Detailed gap of valve setting
-The wrench screw is worn
– Cylinder arm contact faces worn out
-Subaccount is loose
-Subap nails loose
-The spring springs are weak
– sticking of wabs

2-Valve arrest, Valve precipitation

-Dash spacing is incorrect
– There is too much space between the valve shaft and the valve shaft
– The spring springs are broken
-The stabbing of the valve device due to mechanical failure

3-Burned bed sheets

-Dash spacing is incorrect
-The weakness of spring springs
-The stabbing of the valve device
-She’s got a lot of pigs
-Motor always use at high revs
-The head of the tub is very thin


When is the valve setting required?

The valve setting is vital for the engines of the vehicles. If your car sounds a valve in your car in order to know if your car needs a valve adjustment; By way of example, if you hear stylish chic, or sound very similar to two metal bangs that are very contrary to one another, if your engine does not make any traction and your fuel consumption has increased at a noticeable level, your valve setting may be loose.
If your car is accelerating faster than it should if it is released even in the downhill position, and if you are working hard in the morning when you are running your car, your valve settings may be tight.

Valve Setting Values:

The valve setting values ​​are different for each engine. These values ​​are specified in the description of your vehicle. If you can not reach your car or valve setting values ​​are not specified in this catalog; You can learn these values ​​from your service, which is specialized in your car’s brand, or your master, who is constantly taking your car.
Valve values ​​vary for cold and hot engines. Because of this difference; due to the difference in temperature, the valve expands. If you are planning to make a cold valve setting; you should let your car cool down one night before you start your tuning process in the morning and the weather will be cooler the next day without your motor running at all to ensure you reach the healthiest result.
For those who are not accustomed to doing the Eli valve setting, it is advisable to make a cold valve setting. It will be appropriate to confirm it during the ignition of the engine. In engines with ignition, this sequence is usually as follows; 1-3, 4-2. In engines operating in accordance with this sequence (assuming that your motor has 8 valves), the 1st valve exhaust, 2nd-3rd. valve suction, 4-5. The valves are exhaust, 6-7. the valves are sucking and the 8th valve is the exhaust valve. (it may be useful to confirm this condition, regardless of whether it may be different between car engines).


Materials Required to Adjust the Valve


1 piece of cinder (a very affordable material which will be adjusted with this material) 1 key set, 1 screwdriver and jack is the material you need to carry out this process.

Beginning to make the valve adjustment

If your car is front-wheel drive; lift the front wheels of your car into the air and attach your vehicle to the 5th position and apply the hand brake. Once you have done this, open the hood of your car and remove the carburetor cover. The parts called piano and valves are located behind this cover.
During the probable run of your engine, it was mentioned above. In accordance with this sequence; 9 the name of the motive to handle the adjustment according to the name given to the application;

Valve: Exhaust
Valve: Suction
Valve: Suction
Valve: Exhaust
Valve: Exhaust
Valve: Suction
Valve: Suction
Valve: Exhaust.

By turning the wheels of the vehicle, it is necessary to have the 1st and 2nd valves in our eyes to see the movement of the valves. When the first and second valves are in the exact top position, this position is called the thrust point. At this point, when you turn the wheels slightly to the right and to the left, you need to act on both valves. Release the wheels when both valves are in the upper spot. In this position, what is said to be complementary to 1 to 9; The 8th subahaba setting is required. In the setting of the 7th line, the 2nd line needs to be checked.

and the second valve must be at the exact peak point in both valves after being brought to the thrust point. 8th ventilator exhaust, 7th ventilator suction adjustment is required. At this stage, the nut must be held and loosened by means of a key, and the screw on it must be screwed or loosened by means of a screwdriver and brought into the mouth.
It is necessary to choose the appropriate size of the mouthpiece with the mouthpiece and bring it into the valve cavity.

The flange must be of the same consistency as a knife cutting margarine. In other words, it should be a consistency that can be defined as sweet and hard. Transitions that are more comfortable at this stage point to vacancy, tighter transitions. The nut of the screw can be tightened by providing a suitable space through a screwdriver. When the nut is being tightened, the screw is held with a screwdriver so that the screw does not move; the nut must be tightened with the key.

Finally, after the test is done, the 7th valve is set for suction. For this, the wheels have to be moved again. The 3rd and 4th valves should be brought to the riding point. When both valves come to the point of riding, they must be at the exact top of each of the two. It can be set in the 5th and 6th valves. After the process is completed, the same process is performed for valves 3 and 4, and then the order of valves 1 and 2 is set. When performing this operation, the valve that completes 9 is always selected.

and in the course of the setting of the second valves, the valves 7 and 8 are brought to the thrust point. After all these operations, the valve setting operation is completed. Now you can run your motor. Run your motor without closing the carburetor cover for control because you can more easily understand that a sound that is defined as stylish is not coming. If there is no sound that can be identified as abnormal, then the operation is successful. But even if the setting values ​​are normal, if the valve continues to sound, valve head wear or sawdust. In this case you can remove the valve adjusting screw and re-adjust the shape with a sandpaper or rasp.
You must not dismantle the piano part in the process of setting the valve. Because the piano requires a torque switch for mounting. To drop a material into the piston during operation; it would be appropriate to close the valve cavities with the help of a knife or newspaper. You do not need to lift both wheels with the jack. It will suffice to lift one by one due to differential. In addition, valves can not be adjusted for hydraulic propulsion engines.



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