Check your PMs. I had a quick look in my private collection and among a vast quantity of Cessna manuals I see some 182 turbo stuff, but not sure if it is applicable to your year, etc.
highflyer wrote:
The butterfly flap is locked in the open position by rust and debris. It is not possible to move. Furthermore there are fine cracks in the flap. I need to exchange the wastegate since the part is supposedly
not repairable. I strongly suspect a maintenance error. To prove my guess, I would like to know if there are any special maintenance instructions regarding the wastegate such as lubrication with mouse milk.
Mouse milk cannot avoid butterfly cracks. It just dissolves soot from the butterfly shaft and bearing surfaces hence smoothing wastegate operation.
Wastegates live in a tough environment and their life is not unlimited.
