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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.

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Old 12-01-05, 10:59 AM   #1
skyrider
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help with bb removal

Pick up an old beater Raleigh Ambush. There was play in BB axle, got the crank arms off, and lockring. Cant get the cup off. IT has a raised ridge across it Im banging it with a slot srewdriver and hammer no movement. Any help is appreciated I want this bike ready for the snow. Thanks Keep on Keepin On !!!!!
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Old 12-01-05, 11:35 AM   #2
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Drip a lot of penetrating oil (Liquid Wrench or similar) on the threads and apply mild heat with a hair dryer. Repeat several times. A large adjustable wrench can be used to span the raised ridge and should allow more torque than the screwdriver you are in the process of ruining.
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Old 12-01-05, 01:22 PM   #3
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Replace the ball bearings when you finally do get it apart.
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Old 12-01-05, 03:03 PM   #4
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Quote:
Originally Posted by skyrider
Pick up an old beater Raleigh Ambush. There was play in BB axle, got the crank arms off, and lockring. Cant get the cup off. IT has a raised ridge across it Im banging it with a slot srewdriver and hammer no movement. Any help is appreciated I want this bike ready for the snow. Thanks Keep on Keepin On !!!!!
This sounds like an old Raleigh proprietary bottom bracket. Usually these will respond to a 16 mm or 5/8" open end wrench.

See also: http://sheldonbrown.com/raleigh26

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Old 12-01-05, 03:50 PM   #5
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A bench vise works pretty good to.
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Old 12-01-05, 04:36 PM   #6
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Make sure u r turning in the correct direction. It's not always "righty-tighty, lefty-loosey".

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Old 12-01-05, 04:40 PM   #7
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Left handed threads on the drive side.
Enjoy
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Old 12-01-05, 08:34 PM   #8
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Quote:
Originally Posted by Bobby Lex
Make sure u r turning in the correct direction. It's not always "righty-tighty, lefty-loosey"
It is if you are removing the adjustable cup.
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Old 12-01-05, 09:53 PM   #9
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Thanks guys,just got in. Im on the left side of the bike, non drive side. Im turning counterclockwise. Used some antiseize product and heat no luck. Ill try other sugestions tomorrow. How about drilling two holes in it . Thanks Im getting this thing off one way or another.
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Old 12-01-05, 10:02 PM   #10
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Quote:
Originally Posted by skyrider
Thanks guys,just got in. Im on the left side of the bike, non drive side. Im turning counterclockwise. Used some antiseize product and heat no luck. Ill try other sugestions tomorrow. How about drilling two holes in it .
That's not likely to work, the steel is as hard as a drill bit. Worst case, remove the other side (that's a left hand thread) then use the technique described at: http://sheldonbrown.com/tooltips/bbcups.html

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Old 12-01-05, 10:06 PM   #11
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if you can get the adjustable cup off, leave the other one in, clean it a bit, and feel around with your finger on the fixed cup for pitting. if pitted, follow Sheldon "Unnngggggggghh!!!" Brown's advice. If not pitted, maneuver some grease into there, used caged bearings, and reassemble.
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Old 12-02-05, 04:19 PM   #12
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You guys answered my question, Sheldon article was excellent. I know the process to remove it now. Just have to find the time. Again thanks. This forum Rocks!!!!!!
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