True rust removal by a chemist - Jeep Wrangler YJ bolts : Ep 5
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- Опубліковано 9 сер 2016
- For updates on every episode on Facebook: 'Jeep Wrangler YJ Fixin'
This is a presentation of how a chemist would remove and eliminate rust (iron oxide) from rusty bolts. The bolts used are frame bolts holding up a crossmember skid plate on a 30 years old Jeep Wrangler YJ from 1988. All chemicals used were acid (hydrochloric) and water. Finally, the bolts were sprayed with WD-40 to protect the bolts from developing new surface rust.
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Very satisfying video to watch, calmed me down after a rough day at work and it pleases my OCD.
As an electrical engineer by training (a million years ago now) I had to take elective classes in other disciplines before graduating..I took a Chemistry class and then a Microscale Organic Chemistry class. I loved it so much that I had that feeling that I might have chosen the wrong field of study. Enjoyed your videos..just subscribed!
Nice vid.
I worked in a trombone factory where there was an open 55 gal drum of /hydrochloric acid that wasn't vented. For years there I tasted metal in my mouth, til I figured out that the silver and gold was creating electrolysis aided by the acid in the air. I micro meshed my fillings and the metal taste was gone temporarily. I had them vent the acid pit and problem solved.
At last a video which gets to the basics. I'm getting tired of the debates about white vinegar vs. apple cider vinegar, etc. If one is using a simple acid to get rid of rust, it makes little difference which acid one uses. The difference is concentration and time. Even Coca-Cola is just a dilute acid (and a bunch of sugar). I appreciate your thoughtful approach to the problem. Thank you.
Thank you, very informative and useful.
Thanks for your time in thoroughly explaining the process. What was your starting concentration of HCl before you added it to the water?
Now inmerse your full Jeep ;) Thanks for the channel I'm surprised about your other vids.
Love doing this to older car parts then a bit of diy electroplating. For people who say "why not just buy new parts?", yes you can buy new fasteners etc, but on older cars alot of parts are obsolete nowadays. There something awesome about removing rust then plating the part
Awell filmed.Thankyou
You should use a corrosion inhibitior in that solution, because it etches that bolts.
The problem with using acids is that the acid attacks the base metal and greatly weakens it, especially iron and steel. I left some steel parts in an acid bath for a bit too long and when I removed them, I could cut through the steel with a screw driver! The best rust removal method I have found that is non-destructive is electrolysis. It's fairly quick, acid free, and doesn't damage the parts.
Bench grinder w/wire wheel and pliers to hold the bolts?
very nice. You cant get that degree of clean with a wire wheel. Good Video!
That's how I prep all the parts I zinc plate, but I use strait acid and my part are usually clean in a few minutes.
Thanks for sharing! I guess the proportion by which this compound is dissolving the rust resp. the iron is constant and that the mixture ratio 1:1 in principle is arbitrary: Please correct me if I'm wrong. Also if I may ask, isn't there compounds that more selectively dissolves the rust and not the iron, or is hydrocloric acid the best in this regard?
any acid or do some acids work better? What about Oxalic acid? I ask this with regards removing iron oxide from silicon dioxide.
I have used evapo-rust and its beyond fantastic.
I just threw away and replaced those bolts on my YJ. Had to replace the transmission skid plate too.
Does it weaken the metal since its acid?