I have to remove a lot of rusted casters from posts. Some are REALLY rusted in. I use a product called "Knock'er Loose". It is usually enough, when squirted into the top of the tube and allowed to set for an hour, or 2, to remove the casters with a bit of hammering. It is available at some auto parts stores. I also found it on-line.
David Kulcinski Orange, CA USA
________________________________ From: Jim Sullivan <email@example.com> To: firstname.lastname@example.org Sent: Thu, December 3, 2009 11:34:01 AM Subject: [CR] stuck derailleur bolt
a nr derailleur finally showed up for my alan today. but...................... the 980 that is on it has a frozen bolt, that won't budge. it's the 6mm bolt that goes into the dropout. the bolt moves in the dropout, i can see that. the bolt is actually frozen to the derailleur itself and won't spin and i can't get the 980 off. so far, i've soaked it in lube and tapped it with a hammer. it hasn't broken loose.
any thoughts of what i can do to get the 980 off the bike, would be gratefully apprecieated.