when buying used turbos, is there a risk of the turbos seizing if they end up sitting around for awhile, out of the car? is there any type of "maintenance" that should be done to a sitting turbo, particularly ball bearing ones, to keep them lubricated and prevent them from seizing?

 

You should prime a turbo upon installation whether it's new or used. I don't know if there's a way to service/prime/maintain them while its not on a car though. I would cap off the oil and water ports while its sitting to make sure no debris gets in there.

 

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I understand the priming part, but I'm worried about the existing oil from caking up