Need Help Removing turbine housings

[turbodave231]

I've disassembled many turbo without too many problems. I've gotten pretty good at getting the bolts to break free without breaking off. Heat, Wax, and penetrating oils seem to work to free the stuck bolts.

I have two different turbos where I cannot remove the turbine housing from the center section. In both cases, the bolts are all removed and the center section is free from the turbine housing. There is a metal "cup" that sits between the turbine wheel and the center section that is stuck in the turbine housing.

How do I get this "cup" shaped metal part to let go of the turbine housing?????

I have been soaking both alternately with WD-40, and a 50/50 AFT-acetone mix. I am trying to be patient and don't want to screw up a good turbine wheel or center section.

Anybody have any magic or advice?

Dave

 

[charlief1]

I had the same problem on a few of mine Dave. A vice and a deadblow hammer are your friends. Don't hit it hard but tap it and it willcome loose. You may need to soak it in a can of carb cleaner though.

 

[LOT]

Press

I pressed mine out after talking to Chopper @ Limit Engineering (which is what he said they would do if I sent it in.). Support the housing and press on the end of shaft. I was afraid, but it worked. I tried a brass hammer and all that did was put dents in the housing--still there too. Best of luck.--Lee

 

[TurboBob]

I broke a turbo by that was stuck this way.

The metal cup is the bearing heat shield I believe. And I believe the previous poster is correct.

support the exhaust housing, and push on the hub of the exhaust wheel. If you pull too hard on the compressor side (like I did years ago) it breaks the thrust bearing/backing plate.

Bob

 

[bison]

The press will work. I had to do this about 10 years ago.

 

[turbodave231]

I got one of the two turbos apart yesterday. Even with the press, it took a scary amount of pressure to separate the CHRA from the turbine housing. It damaged the bearing shield but didn't appear to hurt the turbine wheel.

The center section will be going to Precision for a new shield. Any idea what this will cost?

The second turbo is still soaking.

 

[porsches4lunch]

I got one of the two turbos apart yesterday. Even with the press, it took a scary amount of pressure to separate the CHRA from the turbine housing. It damaged the bearing shield but didn't appear to hurt the turbine wheel.

The center section will be going to Precision for a new shield. Any idea what this will cost?

The second turbo is still soaking.

That cup is known as a heat shield. This is common with turbos that have gotten a little water or snow, etc... If the solutions don't work, dry it off, heat the area where the center section attaches to the turbine housing and then gently tap it off.