and exhaust. Combustion pushes the pistons down from the top of the cylinder. As engines need air to burn fuel, during intake, valves open up and allow ambient air to come in. When the piston reaches ...

As a vehicle's engine operates, the intake and exhaust valves open and close rapidly while the pistons move up and down in the cylinder. These mechanical actions require a constant supply of hot oil ...

The opening intake valve brings in a torrent of fresh air that helps expel the existing exhaust gases and creates a vacuum, allowing more fresh air to be drawn in. On most engines, overlap is only ...

All four phases occur within a single cycle of the rotor, rather than one at a time in a four-stroke piston engine. There is also no need for a minimum of two valves (intake and exhaust ...

It's springtime! Time to start working on your project car, learn a new wrenching skill, discover what everything is under the hood (and how it works), or just spruce up your daily driver.

With LS engines, however ... That, they say, is the culprit behind failures of both intake and exhaust valves, not the valves themselves. For the purposes of this article, we'll be focusing ...

To adjust the exhaust lash, turn the engine over until the exhaust valve has completed its lift cycle and the intake valve begins to close (IC). Now, the exhaust lifter is on the base circle ...

If all engines were built with a straight shot ... RPM Oldsmobile head with a 30-degree back cut on both the intake and exhaust valves. The Olds' exhaust port did not respond to this modification ...

Intake, Compression, Power, and Exhaust. The Knight sleeve valve engine used the four-stroke Otto-cycle system present in most modern vehicle engines. Starting with the piston at the top of the ...

he takes a failed engine design and musters up the oomph to get it running. The whole build began with an idea for a different kind of intake and exhaust valve. [Meanwhile In the Garage] dreamed ...

The camshaft controls much of this by opening and closing the engine’s spring-loaded intake and exhaust valves. Lobes on the shaft press on tappets which then move the valve stems and the valves ...

Intake valves open and close to let the air-fuel mixture (or just air in some modern engines) enter the cylinders, and the exhaust valves allow exhaust gases to escape. Too much or too little ...