t3 journal bearing size differences.
 

Well, I've done some damage to a few t3s via high EGTs and it looks like restriction from a small inline filter.
I'm rebuilding a t3 that I bought from the gpop shop. I had about 200 miles on this turbo. Pretty standard issue, hot side bearing started to fail and the shaft gets the out of spec wobbles. I got to it before doing any major damage.

Marked the compressor position on the shaft etc.

I have a set of journal bearings which I dropped in. The interesting thing is that they sit loose in the housing. That's bad (and unexpected).
Mic the originals: 16mm (outer diameter).
Mic the replacements 15.75 (outer diameter).

Are there "oversize" bearings for t3s? WTF?

Re: t3 journal bearing size differences.
 

Figured it out.. the center sections can be rebuilt (and overbored) also. Bearings come in standard, .005 over, .010 over, etc.