I've edited for less confusing exposure, I hope I did however I'm sorry if it's not.. if I check it inside I know if there's dirt, debris, oxide... so the only impediment is the tiny piece whose purpose is to lock, I don't know how to remove it for it could be broken so I don't know how to fix it.. so if I remove conversely it I'd get rid of those things... I'd go for simple nitro thinner, but I'd rule out using dremel, so I could weld the wires if I needed to... how would you guys do it, step by step, so...