A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

Because diesel vehicles do not use spark plugs, they must rely on higher compression ratios to ignite the diesel fuel without ...

It may seem obvious, but fill the engine's crankcase with the right amount of oil, usually four to five quarts, and make sure the filter is full of oil. If you've purchased an assembled motor, check ...