Reply to thread

What did the Turbo people say about the damage?

I'm no expert either, but have dabbled in a couple turbo applications, and one that melted down like yours.

My thought is there is an oiling issue. Thus causing severe heat deformation before ultimate failure. Picture the shaft getting super heated, a bearing starts to fail causing more heat in the shaft. The compressor wheel spinning at exceptionally high RPM gets a tiny wobble due to the shaft melting and deforming. It nicks the housing and shatters, sending shrapnel though the compressed air into the charge tube and into intercooler. On the back side of the shaft, the exhaust turbine grenades from the shaft coming apart and coming in contact with the housing, parts of the shaft or god-knows what.

Once the heat induces shaft deformation and contact or just straight shears, there will be catastrophic damage.

Hopefully debris from the intercooler did not make it into the engine!!