lml@lancaironline.net Mailing List Archive

I've often wondered why the hoses aren't mechanically tied together. In race cars and such I've seen tabs welded to the pipes with a link that connects the two pipes together. Then the hose only has to contain the pressure, not hold the pipes together. The force pulling the pipes apart can be 50 pounds or more and the only thing holding that is the hose clamp. Providing a mechanical retention at the turbo outlet is not as easy, but not impossible either.

Gary

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.

....

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