Do any of you guys have wind up clocks and how do you clean the brass mechanisms when they get a little gummy? I have an OLD wind-up clock that will run a while and then stop. Yes it's wound up. I believe it's just a little dirty and needs cleaning, thus the question above. I don't want to take it to watch/clock man unless I have to. Would like to just spray clean if possible. All suggestions will be appreciated and thanks. Pembroke