Good idea! Thank's!
But judging from the condition of the other parts, I assume it's rust or dirt. Probably both. And lot's of it too.
I just talked to a chemist and he said I should put it into citric acid over night. I did that to one of the carriers, the other one I put into coca cola, since I've been wanting to test that myth for ages now!
I'll also get a small ultrasonic bath tomorrow, he said that should work great, he uses one for problems like that all the time.
If all that fails, I'll put the carriers into the fridge and try the heat gun trick.
If even that fails, I'll finally have no excuse left to not get the 6mm shafts from Tekno RC.
