In essence, it alters the valve timing by changing the camshafts' phase angle. For instance, to permit early intake at high speed, the inlet camshaft will be cranked 30° in advance. According to requirement, the engine management system regulates this movement, which is triggered by hydraulic valve gears.
Aston Martin
Variable valve timing (VVT), a technology used in conventional vehicle internal combustion engines, was first developed by Fiat in the late 1960s. The 1980 Spider 2000 from Alfa Romeo was the first manufacturer to use VVT in a production vehicle.
Unclean Oil Can Be Very Dangerous
These oil-fed solenoids and actuators, which are also incompatible with turbocharged engines, are among the variable timing components. Internal coking, clogging, and sludge difficulties in those components can be brought on by dirty oil.
VVT regulates airflow and exhaust
Engine valves regulate the ingestion of fuel and fresh air as well as the outflow of combustion gases. In order to match the engine's operating circumstances, VVT and lift systems modify the timing of the valves. As a result, efficiency is increased across a broad range of engine running speeds.
Where can I find variable valve timing soldenoids? At the front of the engine, often close to the front of the valve cover, is where you'll find the variable valve timing solenoid.
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