[bede1@msn.com]

I just replaced the front turbo on my bird for the same reason. Found that the exhaust turbin was rubbing in the housing. Would spin free with my hand but when we pushed onthe compressor side it moved back enough to rubinthe housing. According to my overhaul manual on the turbo there should be nomore than .003 movement in the turbo. Mine had .009 and only would move with a lot of pressure. My mechanic felt that under high power the exhaust pressure would move the turbine in the chambers causing it to rub and slow down. After the new turbo was installed I have not had any more loss in power. Hope this helps

Bob