take off exhaust housing

[Mike70gtx]

I would like to get the exhaust housing of the turbo hot jet coated. It's a pt-67. It needs to be "broken down" for them to do it. Is that something fairly easy to do or should I let someone who works on turbos do it?

 

[trading t/a]

It isn't too hard to do providing you take the housing off evenly, cock it a little and you may have an expensive repair coming. Piece of mind says let them do it.....

 

[Mike70gtx]

It has to be taken apart for them to do it and they don't dissasemble. I'm not sure if anyone locally is familiar with turbos, but I'm sure someone is.
So the shaft and turbine will stay with the main part and the housing slips off over it?

 

[turbo2nr]

It will be tight, and crusty with rust, take it easy, one side, then the other, back/forth, a little at a time. Make a mark to line up parts, so you only have to put it back on once! Tape up the housing yourself, make sure no coating gets on mating surface. I guess they will put housing in a burnout chamber to get oil off of metal, then blast it. Maby pre-taping won't work. But let them know not to coat the sealing surface. While your at it, take off the compressor housing and have it powder coated a color, or coated with the same stuff as turbine housing, or hand polish it. Look inside comp. housing for casting flaws, grind out rough stuff, and bubbles in the metal when it was sandcast, port&polish. Bellmouth the exit of comp. housing. Take time to mark orientation.

scott

 

[Mike70gtx]

Thanks,
that is a very detailed response. The turbo only has a few hundred miles on it, so that should help.