One of my buddies found a rather dirty Onion, and asked me to clean it up for him. After cleaning and reassembly the opening feels weaker, and the spring doesn't open it all the way. Is there a particular way to put it in or something like that? Everything looks good, the spring went in the way I found it and all that. There's a slight bend in the spring, going the "wrong" way right before the portion that fits into the blade, if that's relevant.