answersLogoWhite

0


Best Answer

The function of a camshaft is to open, and close the valves, to allow a fuel/air mixture into the cyclinder, where is it is processed into power. An engine has intake, which allow the mixture into the cylinder, and exhaust valves, which allow the spent mixture, as exhaust, out the tailpipe. An exhaust cam, would be, most likely, on a twin, or dual overhead cam, configuration, where one cam controls the intake valves, and one controls the exhaust. A cam is a shaft with eccentrics on it. These eccentrics have some sort of follower, depending upon the make, that rides along the came eccentric, and opens the valve, when the raised portion of the eccentric rotates around. The raised portion wears down, and becomes flat, thus no longer opening that particular valve, which causes the engine to run bad, which is a common problem, and judging by your question, maybe an issue in your life, currently.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is an exhaust camshaft?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Art & Architecture

Where is the camshaft located in a two cycle engine?

A two-stroke engine does not have a cam or camshaft. Seeing there is no intake/exhaust valves it would be pointless to have a camshaft.


How does the camshaft work?

A camshaft opens/closes the intake/exhaust valves at predetermined points of the piston travel. The cam is driven by the crankshaft, the rotating cam lobes operates thru lifters/followers that ride against the lobes.


What is a PO344 code?

P0344 = Camshaft position sensor 'A' circuit intermittant (Bank 1 or single sensor)'A' circuit is intake side. 'B' circuit is exhaust side.


Why does a cam shaft run at half the speed of the crankshaft?

The four strokes of a four-stroke engine are intake, compression, power and exhaust. The crankshaft controls the upward and downward motion of the pistons. The camshaft controls the opening and closing of the intake and exhaust valves. Intake stroke- the intake valve is open and the exhaust valve is closed. The piston moves downward, decreasing the pressure in the cylinder, which draws the fuel-air mixture in through the intake valve. Compression stroke- both the intake valve and the exhaust valve are closed. The piston moves upward, compressing the fuel-air mixture. When the piston nears TDC (top dead center), the fuel-air mixture is ignited by the spark plug. Power stroke- both the intake valve and the exhaust valve are closed. The explosion caused by the ignition of the fuel-air mixture (combustion) forces the piston downward. Exhaust stroke- the intake valve is closed and the exhaust valve is open. The piston moves upward, forcing the gases produced by combustion out of the cylinder through the exhaust valve. So, for each firing of a given cylinder, the intake valve opens once and the exhaust valve opens once. But, for each firing of a given cylinder, the piston must travel downward and then upward twice (in each direction.). Therefore, the crankshaft must rotate twice per given cylinder firing, while the camshaft rotates only once per given cylinder firing.


Is a camshaft position sensor the same as a camshaft actuator?

no

Related questions

How does the camshaft activate the inlet and exhaust valves?

Lobes on camshaft spaced correctly


Where is camshaft sensor Volvo 850?

On the rear of the exhaust camshaft; behind distributor cap.


What does exhaust?

Exhaust camshaft phasing on a VVT (variable valve timing) engine is the adjustment of the exhaust camshaft(valve timing) to what the cylinder needs at that rpm/load to improve power/eff. or emissions.


What does exhaust phasing mean?

Exhaust camshaft phasing on a VVT (variable valve timing) engine is the adjustment of the exhaust camshaft(valve timing) to what the cylinder needs at that rpm/load to improve power/eff. or emissions.


Where is the camshaft located in a two cycle engine?

A two-stroke engine does not have a cam or camshaft. Seeing there is no intake/exhaust valves it would be pointless to have a camshaft.


What is the function of a camshaft?

To open/close the intake/exhaust valves.


What is function of a camshaft?

To open/close the intake/exhaust valves.


Where is the camshaft exhaust positioning sensor on the inline 5 cylinder motors 06 h3?

where is the camshaft exhaust positioning sensor on the in-line 5 cylinder motor, 2006 hummer h3


Does diesel engine have camshaft and valves?

Yes. The camshaft operates valves that permit air entry to the cylinder, and exhaust exit from the cylinder. Many modern engines have two camshafts, one for the inlet and one for the exhaust.


How are the camshafts marked to avoid a mixed up during installation on a 2001 daewoo nubira?

the camshafts are identical,take the bolt out of the camshaft sprocket and you will see how the camshaft pin is positioned, that is what makes a intake camshaft or a exhaust camshaft


Does the 1996 Toyota Tacoma have a camshaft?

It has two. One intake and one exhaust.


What is mechanical actuator?

Mechanism with side camshaft and Mechanism with overhead camshaft both valve actuating mechanisms are used to operate inlet or exhaust valves.