Rust remover - more amazing uses!

[MosportGreen66]

I'm doing an original flash chrome valve cover with poor results. Been soaking for 12 hrs with little change in rust break down. I'm hoping over night I begin to see results. Steve, can you share any wisdom? It is fully submerged, baked in the sun all day... I did a pair of original mid yr bbc side pipes with results so good I should have sent them to the manufacturers in hopes they'd post the before/after photos on the website. This valve cover is downright pesky.

[njsteve]

How old is the fluid? After you use this stuff it is really critical to run it through a folded rag wth a magnet folded in it or a paint filter, to get the metal residue out. I did both and then used an old electric fuel pump to push it through a fuel filter. If you don't clean the fluid, the metal particles remain in suspension and the fluid breaks down and loses its effectiveness rapidly. The darker the fuild gets, the closer to it is to the end of its lifespan. The rotors photo above was taken after putting the rotors in brand new clear fluid. By the end of the weekend it was dark yellow. Also when using the shower method you will have to add more water eventually as the water in the fuild evaporates. After finishing up the battery box spray and gathering up the fluid to filter, I was down over a gallon and a half of water from the original 5 gallons I started with. (That was with no spills anywhere).