Re: Using Chem-dip to clean a fuel pump...

Posted by Owen_Dyneto On 2013/6/10 17:45:27

Do you know the chemical components of your "chem dip"? Major ingredients indicated on the label? The fact that it's leaving a black "smut" indicates that it's acidic and perhaps attacking the base metal. Unless you know it's intended for such alloys and metals it's much safer to stick with a solvent cleaner like carburetor cleaner or something like Brake-Kleen.