Originally Posted by
hankaye
Iride01, Howdy;
Back in the day the use of hones for cleaning out break cylinders was an everyday sort of thing.
They have replacement stones for hones so the gunking up isn't that big a deal. Or you can always
boil them like a sharpening stone when it get full, same material ... A hone for the size of a seat
tube shouldn't cost more then 10 or 15 bucks extra stones a few more bucks. OR, ... like I mentioned
above, rent a brake hone from Autozone let them deal with the gunked up stones. Tool rental is cheap.
Yea, I'd remove the BB before I went to clean the crud outta there.
hank
Kudos to you, Hank. Obviously you've had some military aircraft corrosion training, as have I. My #1 hobby these days is rebuilding bikes. Lots of Kroil and lots of slide-hammer work to get out the last stuck seat post, lol. I also use a stainless pot scrubber and some mineral spirits to clean and prep the seat tube, because the next step is the brake hone. I'll only do this to a bare frame, but I actually dunk the BB into a wide plastic container filled with mineral spirits, and use my cordless makita to churn the hone up and down the seat tube like a butter churn. Comes out perfectly, and with a faint cross-hatch pattern. The mineral spirits act as a wash an lubricant, and actually keeps the stones running cool. I obviously dont do this long - just enough to clean it up.