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this is also know as dohc this is to make the engine more fuel efficient and also to give a little more kick to the engine when you lay in to it using both valves allow the engine to bring in more gas at high rpms and let out the exhaust the same way these are in the newer engines because with dohc there is less chance for thing to brake and make the engine more powerful then a regular sohc
What else can I help you with?
How do identify the intake and exhaust valves with the heads on the car?
Trace the runners. You can see the exhaust runners leading to the exhaust valves, and the intake runners leading to the intake valves.
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 meant by camshaft in car?
The camshaft is located above the cylinder and valves. it has solid lobes attached to the shaft, it spins in time with the engine and forces the valves down to let the fuel in/let exhaust gases escape.
What is cams on a car?
Camshaft opens and closes the valves The CAMSHAFT is connected to the CRANKSHAFT with gears so that the valves (intake and exhaust valves) are opened and closed at the proper time for each cylinder, and fully sychronized for with the movement of all of the other parts of the engine.
What is the purpose of a car valves and what is the difference between a 12 valve and a 16 valve engine?
Close one hole of your nose and try to breath in. Feel any difference. Coming back to the subject. By increasing the # of valves you get the below features. a) better combustion chamber shape, resulting in better combustion, resulting in better power and fuel economy. There are intake valves and exhaust valves. On the intake side, the intake valve opens which lets the fuel/air mixture into the combusion chamber. At some point (measured in degrees of crank rotation) the intake valve closes, the air/fuel mixture is compressed and ignited by the spark plug. Then the spent mixture exits the cylinder when the exhaust valve opens. Valve configuration varies somewhat, but regardless of how many valves there are there will always be at least one intake and one exhaust valve. Some cylinder heads have 2 intake and 2 exhaust valves which is what is described as the 4-valve per cylinder setup. As the first two responders pointed out, you have intake valves, which let air in a diesel, or air plus gas in a gasoline engine, into the cylinder; and exhaust valves, which let the spent gases leave the cylinder. One important thing multiple valves can do for you is to let the spark plug be put in the center of the cylinder, from where the flame front can radiate evenly through the chamber. A 16-valve engine (if it's a 4-cylinder) has two intake and two exhaust valves. A 16-valve engine could also be an 8-cylinder engine with 1 intake and 1 exhaust valve per cylinder. A 12-valve engine has two intake and one exhaust valve (if it's a 4 cylinder engine). a 12-valve engine may also be a 6-cylinder engine with 1 intake and 1 exhaust valve per cylinder. evan was here
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 a car run without an exhaust manifold?
Yes. A car can run without an exhaust manifold. It will burn out the exhaust valves in the cylinders a lot faster than normal, but it can be done.
What does a cam in a car engine do?
A cam shaft in a car is basically an axle that has a lobeassigned toeach valve. The lobes are positioned along the axle such that rotation of the axle causeseach lobe to open and closeits valve, which allows the "intake" valves to be lifted to allow fuel/air into the cylinder and lowered to seal off the cylinder when the mixture is ready for combustion. The cam axle rotation continues causing the "exhaust" valves to open after combustion to allow the post-combustion gases to escape. The axle continues to rotate and causes the "exhaust" valves to close - sealing the cylinder as this entire cycle starts over again.
How do you ride a car in a pool?
old diesel with no electric ignition. fit snorkel pipes on inlet and exhaust
Is the power steering fluid connected to the car indicator lights?
no, it's connected to the exhaust manifold inlet
How will a Leaded petrol fuelled car be affected if Unleaded Petrol is used?
The valves, particularly the exhaust valves, will become damaged quite quickly
What is the use of a car timing belt?
The timing belt rotates the cam which has lobes that make contact with the valves and open and close them in a precise manner to allow fuel to enter the combustion chamber and exhaust to exit the cylinder.
