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Engine's Variable Valve


Variable Valve Timing

In this course you will learn about the basic “operations and theory” of variable valve timing (VVT) systems.


Variable Valve Timing has been incorporated into many late model import and domestic engines, including single overhead cam (SOHC), dual overhead cam (DOHC) and even some pushrod V8s. The technology allows camshaft and valve timing to change with engine speed and load so the engine can develop more high speed power while also getting better fuel economy under light load conditions. but it also creates some challenges for diagnostics and repair…

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