robosapien shoulder motor 2 10 211

Bought Robospien V1 for £8 to pull apart. Found one shoulder didn't work.
When I looked at the shoulder motor I found it difficult to turn. After pulling it apart I found the motor only had metal brushes not the carbon I had expected. I wrongly assumed the motor was a cheap china model. Upon examination I found the windings were 0.09mm (8 Ohm resistance) as compared to 0.2mm (2 Ohm) on cheap motors, hence the cheap motor couldn't drive the arm.