Cleaning inside steel tubing
I want to clean out the inside of the tube on my steel Univega frame and have a friend who owns a Park tube brush that he's never used. What kind of degreaser/cleaner should I use to get the inside of the tubes spotless?
Disclaimer: I'll be removing some rust with Oxalic Acid (soaking the whole frame), something I've used one time with great effect on a freewheel and older Tange Falcon headset (which I'll be replacing anyhow because of stripped locknut). I did run into trouble using the Oxalic acid when I discovered that the minimal grease I couldn't wipe away with a degreaser and a toothbrush, didn't react well with the rust removal step and need some help troubleshooting all of that. My choice of degreaser was something I bought from the $1 store called "awesome orange", because any cleaner with 'orange' in the title degreases awesomely, right? Well, not really. I want something beefier, but still minimal risk and biodegradable. I suspect I'm not going to get strong cleaning action if I'm not using something that'll also shave the hair off my arms, but I'm hoping to be proven wrong.
Even though I'm looking for recommendations on how to clean inside steel tubing specifically, I'd also like the forums thoughts on cleaning out old and very grimey BB shells, also. That is also something I need to get done before I ride this thing. Essential the bike needs to be restored to a condition that is as close to new and immaculate as possible, hence all the talk of cleaning, even though it's all just preparation for when I get to the grease. I want to SEE the threads down there, instead of just assume everything is swell.
TL;DR VERSION: Any and all cleaning, pre-grease preping, and getting bikes shiny new on the inside (where is counts ) advice is absolutely appreciated. Cheers.
Last edited by that_was_easy; 07-13-09 at 09:41 PM.
Why not use phosphoric acid? Instead of dissolving the rust, convert it into black nonreactive magnetite, acts as a protection layer against future rusting.