Variable valve timing has been available in cars for almost half a century, first appearing in the Alfa Romeo Spider as far ...

Cummins engines are well-known in the diesel community and have been under the hood of many truck models. However, some ...

Related: Are There Any Mechanical Benefits to Cleaning an Engine? Where relevant, valve clearance specifications and valve adjustment procedures vary widely among manufacturers. The maintenance ...

However, various valves have been adopted to deliver ... The latest rotary engine car from the Japanese manufacturer is the Mazda MX-30 Skyactiv R-EV, released in November 2023.

For a long time, manufacturers have been chasing ... This has meant that on high-revving, high-performance engines, you end up with a period of valve overlap where the intake and exhaust valves ...

Manufacturers like to use a lot of ... Essentially, it allows the engine to advance or retard the valve timing using oil pressure. This allows for more control over how much air-fuel mixture ...

Jacobs Vehicle Systems, a manufacturer of heavy-duty diesel engine retarding systems and valve actuation mechanisms, has launched a new 2-Step Variable Valve Actuation (VVA) system. By enhancing ...

and the valve adjustment process is twice as complicated as it would be in a standard engine. These factors have led desmo almost entirely to fall out of favor with manufacturers. The only ...

"Because gasoline engines typically have some valve angle, the valve drop grows ... all aftermarket piston manufacturers have addressed this limitation and are very good at supplying their ...

No matter how tightly within the prescribed specifications an engine's piston ... varies by auto manufacturer. Despite the differences in outward appearance, most PCV valves share similar ...