Has anyone rebuilt one of these things. In the manual that I have, it says to remove it from the manifold and don't touch it. My IAA looks kinda dirty and I wanted to at least clean it out. If I can't clean it out, does anyone have one that they want to sell to me? I don't have my motor hooked up yet, but my IAA looks kinda screwed. Please help me. Someone please tell me how to clean it out and, if needed, rebuild it. Thanks.