I sometimes get S-D servos very cheap but this time I think it is something mechanically wrong with one.
It makes more noise than a good one when powered, I can't feel any slop in the bearings but I haven't been able to test it under load.
Is it possible to take it apart to take a look without ruining it?
I'll propably end up paying between 30 and 50 dollars for it so it's no big del, I just want to know if it's possible to fix it in some way?

thanks

/Daniel