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**There is a car computer cable that is sold, and it is bought back and connected to the notebook** software, which has throttle opening adjustment. I can't remember the specific model of the line, I'm sorry, there are a lot of them sold, it's a general line, and the software can be found by the seller.
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Summary. Hello, the valve clearance is adjusted to 45, and there will be a clicking sound when the car is idling in a cold car. The valve clearance of the engine of this car, in the cold state, the intake valve in millimeters, and the exhaust valve in millimeters.
Too much valve clearance will cause a noticeable knocking sound at idle, while too little valve clearance will cause engine misfire, idle shake and lack of power after a hot car. Before adjusting the valve clearance, be sure to check the wear of the camshaft, the camshaft is abnormally worn, the valve clearance is not adjusted, this situation needs to replace the camshaft, otherwise no matter how it is adjusted, the valve clearance will always change.
Hello, don't worry, I can ask for your question, but wait a minute, I need text for about 2 minutes.
Hello, the valve clearance is adjusted to 45, and there will be a clicking sound when the car is idling in a cold car. The valve clearance of the engine of this car, in the cold state, the intake valve in millimeters, and the exhaust valve in millimeters. Too much valve clearance will cause a noticeable knocking sound in the idle autolature, while too little valve clearance will cause the engine to misfire, idle shake and lack of power after a hot car.
Before adjusting the valve clearance, we must check the wear of the camshaft, the camshaft is abnormally worn, and the Chunnayuan valve clearance is not adjusted, in this case, the camshaft needs to be replaced, otherwise no matter how it is adjusted, the valve clearance will always change.
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After cleaning the throttle, they have to match, that is, the so-called initialization, generally when doing maintenance, they are directly matched by the computer, and other methods can also be used to find the throttle fuse hall to dig out the power or the battery negative electrode power off. Or step on the brakes and hold on for a few minutes or go out for a while to basically resume normal idling.
Why does it have to be matched?
The main reason is that the initial opening of the throttle disc changes after cleaning, so it must be corrected. Generally, some models have automatic matching, the operation method is very simple, if the automatic matching can not be automated, you can only match it through the computer or try the above method by pretending to be a nuclear person.
There are two ways to clean the throttle valve: dismantling and cleaning.
Dismantling and washing is very easy to understand, that is, the throttle assembly is removed, and the technician uses a special cleaning agent to clean the pollutants inside the throttle, and then installs and restores, so that the cleaning effect is more thorough.
Photo by Shi Lili) @2019
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Usually the intake valve clearance is between millimeters, while the exhaust valve clearance is larger due to the thermal expansion than on the intake valve side, so the clearance is larger, generally in between.
Generally, the intake valve clearance can be adjusted to the exhaust valve clearance, but it must be adjusted at the compression top dead center of the cylinder. That's accurate.
The exhaust valve is higher than the intake valve. Because the thermal expansion of the intake valve is larger.
When the engine is working, the valves will expand due to the increase in temperature. If there is no gap between the valve and its transmission parts in the cold state or the gap is too small, then in the hot state, the thermal expansion of the valve and its transmission parts will inevitably cause the valve to close loosely, resulting in the engine leakage in the compression stroke and power stroke, so that the power decreases, and it is even difficult to start in serious cases. In order to eliminate this phenomenon, a certain gap is usually left in the valve and its transmission mechanism when the engine is assembled in the cold state to compensate for the expansion of the valve after heating.
This clearance is called the valve clearance.
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The valve clearance is generally in between!
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