the best thing you can do is make sure you get your clip/motorset from a reputable importer especially if you can't see the motor.
if you can see the motor...inspect everything
the motor should not come with any oil in it, it's illegal to ship motors with oil in them. you may or may not get all your piping. excessive oil in the turbo piping is never good but could be from shipping. the shaft should have very little play and the fan should not contact the outside wall of the turbo. the fans should not be nicked up.
goodluck
__________________
|