I recently acquired this Zippo-style Nimrod lighter. The flint wheel was stuck but I managed to free it. However when I put a standard flint into it the flint isn't making contact with the wheel to produce a spark. I can stick a wooden toothpick in the hole and feel the wheel and even rotate it and grind the toothpick in a striking motion on the wheel. Does this lighter take a different or special flint or is there possibly a clogged area the toothpick is getting through but the flint isn't? Any help or info is appreciated.