Thanks for playing!
Our initial plan for unequipping was made more difficult by a default engine behavior that I never had time to fix. The difficulty swapping engine parts was something I didn't notice until the final play tests when I gave engine parts a Power Cost. Since they themselves have a power cost you have to be under the power cap in order to actually equip the component which ends up being really confusing. Thanks for sharing your experience with the UX. It'll give us guidance on how to fix things should we get around to it.