Engine noise diagnose assistance - Possible vario cam actuator/pad/chain issue?

[Stl-986]

That isn't going to do anything. The chain rubs along the pads at all times. All it will do is verify if the solenoid is working or not and only at certain rpm's/

[Homeoboxter]

Originally Posted by Stl-986

That isn't going to do anything. The chain rubs along the pads at all times. All it will do is verify if the solenoid is working or not and only at certain rpm's/

Well, the chain rubs along the pads with different pressure since when the variocam actuates the pressure on one side of the pad increases while on the other side decreases, in other words one side of the chain loosens while the other becomes more stretched, which would explain while the rattle happens to occur right when it actually changes. But in mine it didn`t make a big difference in terms of noise, just the performance dropped.