Is this the correct sub-forum?
I have a crazy idea to remove some rust from the internals of my chassis rails. I've been using electrolysis to remove rust from other parts and its worked quite successfully. So I thought I might as well give it a go for the rails. Here's my plan, I am open to all ideas regarding this issue so please tell me what you think.
ELECTROLYSIS SETUP
Step1. Use x2 6meter long re-bar as the anode to span the length of the van. One for each side.
Step2. Insert them down the length of the rail and isolate from the chassis by means of pool noodles at various sections. Also custom spacers in sections where pool noodle is not able to fit.
Step3. Seal up the rails 100% so no water leaks out.
Step4. Fill with sodium carbonate solution.
Step5. Attach positive lead to re-bar and negative lead to a good place of contact on the chassis. May need to attach positive link to far end of re-bar as I imagine Vdrop will be significant.
Step6. Let sit for a few days and then check progress. For this I will empty the rails, pull out the re-bar and inspect. If needed I will clean the re-bar of accumulated rust and repeat for as long as necessary until all rust has gone from the rails.
RUST PROOING
Step7. Clean out rails with pressure washer and clean out with detergent.
Step8. Dry rails and use a paint gun with flexible attachment to reach inside and coat with internal cavity rust proofing coating
Step9. DONE!