[Raceboy]

Old agricultural 3LDZ or K27 is high speed precision device?

I would barely call ball-bearing a precision device, but not a regular journal bearing turbo.

If you don't feel comfortable doing it, fine. But people do even crazier things, like surgeons for example who operate inside human body! without any tight tolerances, just huge knowledge base, common sense, and steady mind!

Originally Posted by 930cabman

I would advise against a home rebuild. Our turbos are very precise high speed with little or no room for error. "Scratching" the parts could lead to premature failure due to the loads imposed. Surely there are reputable shops around who specialize in turbo repair.