Originally Posted by
runway1
I have an FSA crank/bottom bracket that went in for a warrantee checkout for some squeaking (turned out to be the chain). Anyhow, when trying to remove the BB cups (16 point cup), I saw the tech use a 3' breaker bar and still could not budge it!! Wow!
Any ideas of how to get this thing off without cracking the darn frame? They must have been overtorqued when installed. The bike is ~700 miles, 10 weeks old, Scattante carbon frame. I'm thinking of upgrading the BB to Ultegra soon and would like the know that the BB can come off.
I was thinking of stabilizing the bike on the tires, on the floor. Setting the wrench parallel to the floor and then - WHACK! One good impact with a 5# dead blow. Thoughts?
Do not use a hammer on it.
You need to be able to control the force and be able to tell when/if the tool is not seating correctly or is about to strip. My suggestion is to use a cheater bar to increase the amount of leverage. It is possible that the cups were installed with loctite, or nothing. We frequently use a 1m+ cheater bar on really difficult BB's (we see a lot of seized crap due to being a commuter shop). I was also going to suggest using fire, but no go if it's a carbon frame. Also stuff we don't see on a regular basis hehe.
Is it possible that it's corroded/seized? Or is this a brand new bike with no chance of that happening etc. etc.