in my opinion seeing a WB probe wire melt does not necessarily mean EGTs were too hot. a small exhaust leak at the the turbo/ manifold or down-pipe could easily burn insulated wires like a egt probe. you had a probe, so what temps where you seeing? sustained? spike? cruising on the highway II sometimes see temps as high as 1600+ but on the track it runs cooler, around 1450 is around the I've noticed. If I recall, over 1800 is getting dangerous.

 

Got apart today and ***** were falling out as i took apart. One of the bearings failed as seen above. So these cannot be rebuilt? Does anyone sell the bearing replacement? it looks like a small cylinder with bearing and could be easily replaced. I cannot find any online. If yall know any anyplace that sells this would appreciate it!

 

post more pictures of the internal parts, i am curious to see whats inside a ball bearing turbo.

about rebuilding it, official Garrett statement is that their ball bearing turbos are not rebuildable, and you need to buy a new CHRA (center section with both wheels attached)..
Costs $400 if you mail back your broken core for credit.