Re: Fuel Pump

Posted by Owen_Dyneto On 2012/5/13 15:05:00

would that remove that powdery rust?,,with three filters it still gets in carb. that stuff has to plug up the ceramic. i don't see how it could be removed even ultra.

It sounds like you're got a pretty serious gas tank problem, probably the best is to remove and clean the tank and coat if necessary. I typically clean my filter bowl and element every 5 or so years and even then never find anything noteworthy in the bowl.

But to answer your question I'd think compressed air blowing in reverse flow would dislodge rust particles, but if in doubt soak the element in some warm oxalic acid solution - it will dissolve the rust. Oxalic is found at most hardware stores in the paint section.

PS - dilute hydrochloric (muriatic) acid would also be effective - but read and follow the label precautions. You might try something like a 10% solution by volume.