At the same time, I managed to free off the last of three bolts holding the hydraulic unit together. The front section has seals visible, one to seal the two parts together and one just inside the gold coloured tube. The booster has two o-rings. There is a bolt on each half of the unit. Perhaps someone knows if removing these allows access to the internals somehow. Both of these on the refurbished one have been removed, cleaned and plated. The master solenoid on the front looks to be held in with a clip so may also be removable.
What are you getting done by the guys in Edinburgh? Also any reason you are using them instead of the Portuguese company you used for the other unit?
I was looking to see if any of the 3 hydraulic pump motors from the 3 faulty ABS units lying about could be refurbished as the shaft's don't spin by hand or with power. From the picture above, I can see why one didn't work. Probably the first thing I would ask now from a seller.
