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The camshaft(s) lobes push up on the rockers on top of the cylinders, which pushes down on the vavles, causing them to open

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Function of valve?

The valves in a car engine are opened and closed by a cam shaft driven by the engine crankshaft. they allow the flow of gases and fuel into the engine and the burnt gases out of the engine into the exhaust system.


What is an interference engine?

It refers to an engine where the area occupied by the valves when they are open is occupied by the piston when the valves are closed. If the timing belt lets go while the engine is running the piston will smash the open valves doing loads of damage.


What is the function of engine valves in car?

Engine valves are essential for controlling the flow of air, fuel, and exhaust gases in a car engine. Intake valves open to allow the air-fuel mixture (or just air in diesel engines) into the cylinders, enabling combustion. Exhaust valves open to release burnt gases after combustion, clearing the cylinder for the next intake cycle. These valves open and close at precise intervals, known as valve timing, which is crucial for efficient engine performance. Proper timing ensures optimal power, fuel efficiency, and smooth operation, while also preventing engine issues like knocking, which can occur with incorrect or poorly timed valve operations.


What is the purpose of a car valves and what is th?

Car valves are crucial components in an internal combustion engine, responsible for controlling the flow of air and fuel into the combustion chamber and the exhaust gases out. They open and close at precise intervals to ensure optimal engine performance and efficiency. Proper functioning of the valves helps maintain engine power, efficiency, and emissions control. Additionally, they play a vital role in the overall timing and operation of the engine's cycle.


How does valves work on a small engine?

Valves on a small engine control the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases. Typically, there are two types of valves: intake valves, which open to allow the air-fuel mixture in, and exhaust valves, which open to let out combustion gases. These valves are operated by a camshaft that pushes them open at specific times during the engine's four-stroke cycle (intake, compression, power, and exhaust). Proper valve timing and function are crucial for efficient engine performance and power generation.


What car has a 4 cylinder 24 valve engine?

No 4 cylinder car has 24 valves. Only 16. A V6 has 24 valves -reply- no your wrong.. the 2010 Mazda 3 is a 4 cylinder inline engine with 24 valves


Can you start a car with a broken timing chain?

I wouldn't recommend it. The timing chain synchronizes all of the valves and pistons so that the valves for the right cylinder open at the proper time. If the timing chain breaks while the engine is running, you've got a really good chance of destroying your engine, and I do mean "destroying" your engine.


What is an interence engine?

If the timing belt broke on an interference engine, the open valves and pistons would collide and wreck the engine.


What causes a knocking noise under the hood of your car?

it could be your valves or your engine


What is a cam ON A CAR?

The cam is in the engine and it is what opens and closes the intake and exaust valves


What is the function of cams in an engine?

a cam in engine is to operate the lifters which in turn open and close the inlet and exhaust valves


In four-stroke engine the time period when both valves slightly open?

overlap