I have tried to complete this quest and have installed the tinkered clockwork brains into about 2 dozen Erratic tinkerfest clockworks. However it does not ever complete to where one of them wants to follow you home. Is there something else I should do? Zam doesn't have any other stuff I read about that I'm missing.
Are you sure you're not just disabling them? There are two steps to the process, first, you hit them with the disabler he gave you, then you have to right-click and select "Install brain".