Suction - what is suction?
Content
Suction - this is a device (device) for forcibly supplying gasoline to the carburetor in cars with an internal combustion engine, during the engine warm-up.
Other meanings of the word Suction.
- On the suction in youth slang so they say about a person who occupies a subordinate position in a group, and this person performs small assignments, that is, it means to always be “on the sidelines”
- On the suction cup so they call a fawning or unnecessary person, like - bring it, give it, go “further”, don’t interfere
- In criminal jargon on the suction means lack of something, such as money.
- Scientifically suction maybe capillary, which means the movement of fluid inside porous materials.
What is a choke in a carburetor for?
The device of the carburetor fuel supply system is complemented by a throttle valve. It regulates the air supply to the mixing chamber. The position of this damper determines the amount of air-fuel mixture that is supplied to the engine cylinders. That is why it is directly structurally connected with the gas pedal. When we press the gas pedal, more air-fuel mixture is supplied for combustion inside the engine and generating power.
Some carburetor engines were equipped with a lever that controlled the throttle. This lever was brought through the cable directly to the driver's dashboard. This lever made it easier to start and warm up the car "cold". In the common parlance of the community, this lever was called choke. In general, the word suction correctly reflects the functional role of this lever. After the suction is pulled out, the throttle valve rotates to reduce the opening and the air flow into the mixing chamber is limited. Accordingly, the pressure in it drops, and gasoline is absorbed in a larger volume. The result is a mixture richer in gasoline with a higher fuel content. It is this mixture that is perfect for starting the engine.
After the engine is started and warmed up to a sufficient temperature, the suction must be returned to its normal position, and the damper will again be set to its previous vertical position.
Why can't you ride on a choke?
The engine was originally designed for a specific air/gasoline ratio at operating temperature. A mixture richer in gasoline (that is, driving on suction) after the engine has warmed up will lead to the following problems:
- Increased fuel consumption
- Candles turn black
- Bad start car
- Dips, jerks, lack of smoothness
- Pops in the carburetor and engine
- Dieseling (gasoline ignites inside even without a spark)
How to find air leaks
We need ether to start the car engine. If this is not the case, then you can use kerosene, or carburetor cleaning fluid, and in extreme cases, you can use gasoline (subject to safety precautions).
It is safe to use ether and kerosene directly on rubber pipes, unlike gasoline or a special liquid for cleaning carburetors.
- It is worth starting the search for a place of suction starting from the DMRV sensor and then gradually moving towards the intake manifold.
- The search must be done with the engine running.
- After starting the car engine, we gradually treat with an aerosol all the junctions of the pipes.
- We carefully listen to the operation of the engine.
- When you stumble upon a place of air leakage, the engine will increase speed for a short time, or it will start to "troit".
- Using this original method, you can easily find and eliminate air leaks.
