You are reading a single comment by @crank and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@crank
First, the BB is probably Italian threaded, so one cup will be threaded the wrong (right) way.. have you taken this into account?
I've never tried heat, think it will depend on the material the BB is made of, but sounds like it's worth a shot.
Chemicals: Try soaking in some tough penetrating oil (plusgas etc.) rather than WD-40.
Mechanical: After soaking as above, tap the BB shell with a hammer etc. Fairly lightly, the goal is to work the penetrant further into the threads, and break the corrosion seal through vibration (not brute-force)
Leverage: Clamp the removal tool on somehow, so it won't slip and ruin your chances. Then either use a big bit o' scaff-pole as a 'cheater bar', or clamp the tool in a vice and user the frame as a lever.
Don't give up! I've never seen a BB that can't be shifted, and only lost one thread (because someone turned the cup the wrong way).