PF&PM wrote:
When you say "actuator" do you mean "waste gate valve" ?
)
No, I mean the electric motor. This turbo has a variable geometry (VGT). The mechanism is operated by a DC brush motor working off the ECM command at 5 Volt DC. The mechanism moves a sliding nozzle ring in and out in the turbo unison plate on the hot side of the turbo to increase or decrease turbo speed.
See details here:
http://www.dieselusa.com/productinfo/HE341Ve.pdf
Here is a HE351HE, same principle of the ring moving in and out but the driving gears of the VGT is not the same.
https://www.youtube.com/watch?v=PDAu6hlRU-A
