ACTUATOR-INTAKE PORT SWIRL

The intake manifold swirl actuator is located between the two intake manifolds .

The intake manifolds have a charge air passage (3) which are ovate, and swirl passage (2) which are round, for each cylinder. The swirl blades (2) are mounted in each intake manifold swirl passage (2) and are not serviceable. The actuator (5) is PWM controlled by the ECM and is constantly adjusting while the engine is running to optimize the air/fuel mixture and create the best possible air turbulence. The result is Improved combustion, improved engine performance and a reduction in exhaust particulates. The swirl blades (2) in the intake manifold are held in the open position by an internal spring in an un-powered state .

OPERATION

There are two channels in each intake manifold for each cylinder. A charge air intake passage (3) and a swirl intake passage (2). The swirl passage (2) incorporates a blade (2) that is continually adjusted through linkage (4) and an actuator (5) when ever the engine is running. The actuator (5) is controlled by the ECM through a PWM signal. As engine speed and load increase the swirl channels adjust for optimized air turbulence and air mass requirements. When the engine is not running, the swirl channel blades (2) are held open by and integrated spring .

REMOVAL

CAUTION: Care must be taken when connecting the actuator and rod assembly. Failure to do so will result in poor connections during assembly or intake manifold replacement.