VVT FA20 Engine What’s Inside the Variable Valve Timing Control in a Toyota 86/Subaru BRZ?

Taking a look inside the VVT system on an FA20 Toyota 86 How does VVT (Variable valve timing control) work? (1) A rotor-based design with high efficiency and low friction while driving has been adopted. (2) Double-tooth rotors have been adopted on both the intake and exhaust sides. When stopped, the rotor on the intake side is fixed in the intermediate locking position, and the rotor on the exhaust side is fixed in the maximum advance position, using lock pins. (3) The variable valve timing control oil control solenoid attached to the timing chain or belt cover sub-assembly activates the spool valve, hydraulic pressure to the advance chamber and retard chamber inside the cam sprocket is regulated, and the phases of the intake and exhaust camshafts are continuously changed, according to signals from each sensor to the ECM. Source: https://www.ft86club.com/forums/showt... #fa20 #toyota86 #gt86 #vvt #vvti