Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Stuck Bottom Bracket

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Stuck Bottom Bracket

Old 06-21-08, 07:57 PM
  #1  
Got Scotch?
Thread Starter
 
goalieMN's Avatar
 
Join Date: Feb 2008
Location: Minnetonka, MN
Posts: 277

Bikes: QR Kilo, Specialized Crossroads

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Stuck Bottom Bracket

So, I have my Bianchi San Jose completely apart for maintenance.....except I cannot remove the bottom bracket to replace it with a new one I got. I have the right BB tool/wrench thingy, and I know that it should loosen on the drive-side by going clock-wise, but it won't budge. I am wondering just how much torque it should take to unscrew it, because I don't want to destroy anything on my bike trying to do routine maintenance.

Is it common for BB's to get stuck? I did ride it in the winter here in MN.
goalieMN is offline  
Old 06-21-08, 08:14 PM
  #2  
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 13,823

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1774 Post(s)
Liked 1,231 Times in 852 Posts
They can get tight, as you've noticed. Apply a good penetrating oil like PB Blaster, Liquid Wrench etc. and let it soak a few hours/overnight.
Bill Kapaun is online now  
Old 06-21-08, 09:42 PM
  #3  
Senior Member
 
Join Date: Dec 2006
Location: Aurora,CO
Posts: 298
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
a 4 foot breaker bar or pipe that will fit over your wrench works wonders. Barley have to push on it to break it loose. used htis method on many bikes with no problems
mtnbiker4791 is offline  
Old 06-21-08, 10:11 PM
  #4  
Senior Member
 
MudPie's Avatar
 
Join Date: May 2004
Location: Southern California
Posts: 2,190
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked 118 Times in 91 Posts
Originally Posted by goalieMN
...Is it common for BB's to get stuck? I did ride it in the winter here in MN.
Once you remove it, as suggested by the other posts, use plenty of grease on the threads of the cups before installing it. Also, I often remove the bottom bracket twice a year to inspect, but mainly to exercise that joint and keep it operable.
MudPie is offline  
Old 06-21-08, 10:51 PM
  #5  
Senior Member
 
due ruote's Avatar
 
Join Date: Dec 2006
Posts: 7,707
Mentioned: 30 Post(s)
Tagged: 0 Thread(s)
Quoted: 903 Post(s)
Liked 524 Times in 318 Posts
Cartridge BB? Be careful with the tool/BB interface - if it's a hollow spindle, you can put a QR skewer through and hold the tool to the BB. For removal, it's often easiest to put the tool in a vise and turn the frame. As long as you're sure you're turning in the right direction, it's pretty hard to damage the frame. Same technique works well for removing the fixed cup from a cup and spindle BB.
due ruote is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.