Well that's a happy ending.

I wonder if anybody ever thought about putting check valves in the Y that leads to the inlet.    Then you would still get something out of the remaining turbo.
....but that would be more complicated than just tightening the hell out of those hoses.

On Sep 12, 2010, at 8:42 PM, John Hafen wrote:

> I have a Continental in my IVP with the linked turbo system.
>
> Climbing over Mt. Ranier at 17k feet, one of the turbo hoses blew off. I didn't know that at the time.  All I knew is that I was climbing over Ranier (a 14,500 foot volcano with no landing areas near by) and was thrown forward in the seat as my manifold pressure went from 37 inches to 22.
>
> I initially thought I had lost an engine, but it was still running.  But the reduction in manifold pressure was dramatic.  And frightening.  I probably said a bad word or two (glad Mom wasn't with me) and may have crapped myself as well, not sure.
>
> I decided to make like United or Delta and try to glide into SeaTac.  So I turned toward SeaTac and was about to call to enter their class B and have them clear the runway, but about 12k feet, the engine started feeling much happier.  I returned to Paine without incident.
>
> A de-cowling revealed the slipped hose.  It only came off about 1/4th inch, but that obviously was enough to lose all turbo boost.  I slipped the hose back on and tightened the hell out of it, re-safety wired it, and have flown happily every since.
>
> John Hafen
> IVP 413AJ
>