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To move the valve down as the camshaft rotates.
The camshaft opens the valve via its Lobes, against the valve spring, to open. The valve springs closes the valve back.
Fewer moving valve train parts such as the push rods.
Mechanism with side camshaft and Mechanism with overhead camshaft both valve actuating mechanisms are used to operate inlet or exhaust valves.
That is called the lift
Exhaust camshaft phasing on a VVT (variable valve timing) engine is the adjustment of the exhaust camshaft(valve timing) to what the cylinder needs at that rpm/load to improve power/eff. or emissions.
to inject oil into the valve timing controller assembly
Does not have one. The engine uses cam overlap to achieve the effect of the EGR valve.
The camshaft sensor is located on the right hand side of the valve cover right below the valve breather tube. It is a simple 2 bolt mount....
Older cars with a carburetor the camshaft is above the crankshaft roughly at the level of the bottom of the heads. Newer motors have the camshaft on top of the head right below the valve covers.
Exhaust camshaft phasing on a VVT (variable valve timing) engine is the adjustment of the exhaust camshaft(valve timing) to what the cylinder needs at that rpm/load to improve power/eff. or emissions.
It is the "Advertised duration", used by the factory. It is the Valve timing from when the valve is .006inches off the valve seat to .006" off the valve seat.