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

Posted by Owen_Dyneto On 2013/6/11 14:43:03

To oxidize one of the base metals in the alloy you'd have to have both an acid component and an oxidizer, or both properties in one compound such as nitric or chromic acid. No such ingredients show on the MSDS and since the solution is organic (non-aqueous neither would have been compatible anyway. I suspect the smut might be from the loosening of old, dried motor oil or perhaps even from one of the rubber components. Or maybe something left in the chem-clean from a prior use? I'd just clean the parts thoroughly, perhaps give them a little wipe with 0000 steel wool, and go from there.