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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.
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.
Mechanism with side camshaft and Mechanism with overhead camshaft both valve actuating mechanisms are used to operate inlet or exhaust valves.
Mechanism with side camshaft and Mechanism with overhead camshaft both valve actuating mechanisms are used to operate inlet or exhaust valves.
MUST be done HOT valve stem to rocker: Inlet: .30mm, Exhaust: .30mm camshaft to rocker: Inlet: .19mm, Exhaust: .19mm.... EFI have hydraulic tappits.
pistons, cylinders, intake valve, exhaust valve, spark plugs, camshaft, crankshaft. don't forget the block. True! But do I get a trust point for what I did list? :)
Pistons, cylinders, crankshaft, crankcase, oil pan, spark plug, camshaft, connecting rod, rod bearing, exhaust valve, intake valve.
replace the EGR valve and reset the OBD II Exhaust Gas Recirculation valve
The four strokes of a four-stroke engine are intake, compression, power and exhaust. The crankshaft controls the upward and downward motion of the pistons. The camshaft controls the opening and closing of the intake and exhaust valves. Intake stroke- the intake valve is open and the exhaust valve is closed. The piston moves downward, decreasing the pressure in the cylinder, which draws the fuel-air mixture in through the intake valve. Compression stroke- both the intake valve and the exhaust valve are closed. The piston moves upward, compressing the fuel-air mixture. When the piston nears TDC (top dead center), the fuel-air mixture is ignited by the spark plug. Power stroke- both the intake valve and the exhaust valve are closed. The explosion caused by the ignition of the fuel-air mixture (combustion) forces the piston downward. Exhaust stroke- the intake valve is closed and the exhaust valve is open. The piston moves upward, forcing the gases produced by combustion out of the cylinder through the exhaust valve. So, for each firing of a given cylinder, the intake valve opens once and the exhaust valve opens once. But, for each firing of a given cylinder, the piston must travel downward and then upward twice (in each direction.). Therefore, the crankshaft must rotate twice per given cylinder firing, while the camshaft rotates only once per given cylinder firing.
The crankshaft is turned by the pistons going up and down. The cam shaft is driven by the timing belt or chain that is turned by the crank shaft. The camshaft on a four cycle engine turns 2 to 1 crankshaft revolution. The cams on the camshaft operate the intake and exhaust valves. intake valve on one revolution and exhaust on the next.
I think you mean the Variable Camshaft Timing Solenoid or VCT Solenoid (F8CZ-6L713-AA) used on 4 cyl engine. It is located under the camshaft cover on the on the exhaust camshaft.
valves open and close by raised lobes on the camshaft . they hit the connecting rod, which is connected to the rocker arm that open and closes a spring loaded or hydraulic valve lifters . the intake or exhaust valve is open when when the raised lobe hits the connecting rod. the valve closes when the cam shaft rotates and the connecting rod falls off raised lobe.