Joined: Sep 2014
Posts: 126
Likes: 5
From: Pasadena, Ca
Bikes: 1972 Gitane Super Corsa Frankenbike, 1972 Motobecane Le Champion, Motobecane Grand Jubile, 1980 Bianchi Campione di Italia, 1984 Paramount, Trek 620, Trek 720, Cannondale 3.0, Kestrel 200sci, Kestrel 200EMS, Bob Jackson Tandem
Here's a pic of the bb AFTER scraping out most of the corrosion and soaking for a couple of hours in vinegar. My guess is water got into the BB shell and it and the BB reacted. Removing the BB, I broke the tool because it was so frozen in there. On the plus side I was able to source a replacement for the missing derailleur drop out.