Camguard and Turbo Mooneys

[cwalter]

I have noted the posted regarding Camguard but have a specific question related to turbos. Does anyone have experience with Camguard in turbo Mooneys? I have a '79 231 with about 450hrs SMOH and considering using Camguard with Phillips X/C. I've read a lot regarding Camguard but the concern I have is the fact they have not obtained FAA "acceptance" in turbos. I have seen posts at least 2-3 years old where Camguard representatives said turbo acceptance was a couple of months away. I spoke with Camguard and they claim it is political at this point but they made comment regarding turbo temperatures which leads me to believe there could be a concern there. They stated there is only a 25 degree increase in oil temp from input to output of the turbo but my mechanic commented that the oil is passsing bearings that are running hundreds of degrees. The system is designed to pass oil through quickly to limit the heat any given "parcel" of oil can pick up while still effectively cooling.

Could there be a concern with Camguard and its reaction to contact with such high temp parts? Clearly it is operating in the high temp areas of combustion (cylinders and rings) without issue but I think turbo bearings are running at least double typical cylinder head temps.

Thoughts or experience with Camguard and turbos?

Thanks,

Chris

 

[1970m20e]

Mine clunks too.  I am getting the donuts and the bushing changed when I get back from my tour.

[peter]

If the camguard affects flash point, wouldn't that show up in the oil analysis?  The prior owner for my aircraft used camguard and phillips since overhaul nearly 800 hrs ago.  We're now using Aeroshell.  All the same, there doesn't seem to be any adverse affects from the Camguard use, and all of the oil analysis performed when Camguard was in use were normal, within specs.  Compressions are all still in the 70's.  

Can you shed any more insight on what specific concerns the FAA might have had for the turbo engines?  I'm very interested as my partner and I have not been flying as much as we would like.

Thanks!

Peter

[cwalter]

I'm not sure what the FAA issue could be. It is interesting that the company rep stated " there is only a 25 degree oil temp increase out of the turbo" out of the blue. I didn't ask about that at all in the conversation. The fact I found posts over 2 years old where Ed Kollin (last name?) stated FAA accceptance was only 2 months away and to this day they have not received acceptance raised a flag. The rep talked about the facts surrounding the aerobatic aircaft used in testing was a big deal but did not know if it was running a turbo was also interesting. Not sure any of this means a thing but before I added it I thought I would throw this out there.