VVT, Problem
A little help for ebay friend, describes the operation of the vvt system in a 2.4 camry
VVT-I timing gear unlock
How to unlock a V V T-I timing gear from Toyota xb 1.5 for installatioin on intake cam
Inside the dirty VVT-i Actuator
This video file shows one possible cause of the fault code Toyota DTC P1349 (VVT System malfunction):
VVT-i Controller sometimes gets stuck.
BMW VVT Vanos CAM Timing
BMW VVT Vanos CAM Timing
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VANOS is BMW's answer to variable valve timing. It is a combined hydraulic and mechanical camshaft control mechanism, managed by the car's DME engine management system.
At the lower end of the engine-speed scale, the intake valves are opened later, which improves idling quality and smoothness. At moderate engine speeds, the intake valves open much earlier, which Boosts torque and permits Exhaust gas re-circulation inside the combustion chambers, reducing fuel consumption and Exhaust emissions. Finally, at high engine speeds, intake valve opening is once again delayed, so that full power can be developed. VANOS operates on the intake camshaft in accordance with engine speed and accelerator pedal position.
VANOS significantly enhances emission management, increases output and torque, and offer better fuel economy. The latest version of VANOS is double-VANOS, used, among others, in the new M3.
The VANOS system is based on an adjustment mechanism that can modify the position of the intake camshaft versus the crankshaft. Double-VANOS adds an ....
Get the whole story right here in this video. Part of our European series... Enjoy...
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Toyota VVT-iE, Variable Valve Timing
Toyota VVT-iE, Variable Valve Timing
Describes the operation of the Toyota VVT-iE or variable valve timing with Intelligence Electronic. This is Toyota's highest state of the art variable valve timing system, which uses a small electric motor/actuator to advance or retard the valve timing. By varying the speed of the motor, the system is able to change follow the CAM sprocket, increase speed to advance or decrease speed to retard. The end result is a fast acting and accurate CAM timing control system. See how it works and why.
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HONDA V-Tec Operation
HONDA V-Tec Operation
Describes the operation of the HONDA V-Tec variable valve timing system. Like never seen before, this animation goes into details on the mechanical principle of the V-Tec system. The Honda V-Tec system is a dual setting variable valve timing system. It is meant to give high efficiency and low power at lower RPM and high power and low efficiency at higher RPMs. There have been a few incarnations of V-Tec, which came out in the late 80's, but their principle is the same. See it all here with high quality visual details.
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Volkswagen TSI Engine 3D Animation
https://www.eurocarnews.com - Volkswagen AG - The most effective means for reducing fuel consumption is so-called downsizing. By reducing displacement and thereby lowering frictional losses, a lower specific fuel consumption can be achieved, and this goes hand in hand with better efficiency. The innovative path to the future is the combination of Supercharger and turbocharger. The Supercharger compensates for typical drive-off weakness at low revs of purely turbocharged gasoline engines, while the turbocharger really puts out at higher revs. This combination of two types of chargers is unique among engines mass-produced worldwide.
How diesel fuel injector works? And how nozzle spray ??.flv
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Here it shows that how the injector works and what is the function of the nozzle in the nozzle holder or injector.
Tecnología VVT-i
Video que explica la tecnología VVT-i y Dual VVT-i de Toyota
BMW Valvetronic Variable Valve Lift
BWM Valvetronic Electronic Valve Lift
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Valvetronic engines use a combination of hardware and programing to abolish the need for a regular throttle mechanism.
Valvetronic varies the lift of the intake valves. Based on signals formerly taken mechanically from the accelerator pedal position sensor, the stepper motor changes the phase of the eccentric cam, modifying the action of the intake valves.This system has a conventional intake cam, but it also uses a secondary eccentric shaft with a series of levers and cam followers, activated by an electronic stepper motor.
The Valvetronic engine replaces the function of the throttle body by using infinitely variable intake valve lift. Valvetronic has its own computer housed in a separate unit away from the engine management system, networked through CAN network with the digital engine management system incorporating a 40-megahertz, 32 or 64 bit computer.
Valvetronic reduces maintenance costs, lowers Exhaust emissions, improves cold start behavior, and provides a smoother running engine. It also does not need specific fuel grades or fuel qualities because of its fine atomization of fuel.
Because Valvetronic allows the engine to breathe ...
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TOYOTA COROLLA 4EFE ENGINE REPAIR CAMSHAFT REPLACMENT
Created on June 9, 2011 using FlipShare.TOYOTA COROLLA 4EFE ENGINE REPAIR, LOW OIL LEVEL engine starved of oil sludge in oil sump, clean out sump with kero oil mix, replace cam and timing belt
