DD15 blown APT

[CFR__AND_SONS]

Hi all. My driver only calls me when something is wrong. I got that call Monday.

Complaint: Going up a hill, not too heavy of a load, he downshifted and heard a loud "pop" then lots of white smoke out the exhaust pipe. Pulls over and calls me. I have him check the oil and dip stick is dry but was ok during his pre-trip. So I call the tow truck and tow it to mechanic shop.

Mechanic discovered that the APT(Axial power turbine) was actually the one that was damaged. From what I see, it has two parts. The one where the actual turbine sits and other behind it bolted to the block that has gears inside of it. Both of those are being replaced.

Question is... Turbo is intact but oil got into it. I'm 90/10 on replacing it. Mechanic says it may or may not be ok. Most likely will be ok. He can clean it real well and make sure its working ok. The concern is that due to the pressure from the blown APT, the turbo may not function 100% and 2-3 months from now blow. Hence why I am 90% sure I want to replace. Anybody have any experience with this? Recommendations?

Also the oil ended up in the converter box. Can that just be like pressured washed and put back on after inspecting the components? What should we look out for? Thanks in advance.