Sheldon "rest in tools" Brown has a pic of the home made tool on this link ...
http://www.sheldonbrown.com/
Ciao,
Ben Kamenjas Kensington, Australia
On 21/06/2010, at 5:00 AM, classicrendezvous-request@bikelist.org wrote:
>
> Chuck gives good advice. The tool that I have is a Kingsbridge
> brand. To use
> remove the other cup, remove the balls and old lube, insert the long
> side of
> the tool into the stuck cup (there's a long enough side that sticks
> out past
> the shell's other end so the tool's wrench flats can be grabbed). Then
> depending which way the cup is threaded I clamp either side of the
> tool in a
> bench vice and use my 18" crescent wrench with added leverage from a
> piece
> of pipe. When you turn the frame it should produce a self tightening
> torque
> on the tool. I have come across only a very few cups that I couldn't
> remove
> in 35 years. Those few were ground out.
>
> The tool is very simple and would be easy to produce. I would be
> happy to
> photo mine and send a link along.
>
> ----- Original Message -----
> From: "paccoastcycles" <paccoastcycles@sbcglobal.net>
> To: "kim klakow" <Akimbo71@gmx.net>; <classicrendezvous@bikelist.org>
> Sent: Sunday, June 20, 2010 1:02 PM
> Subject: Re: [CR] Seized LH cup: How to?
>
>
>> Kim,
>>
>> If you can get the fixed cup out, there is a tool that is basically
>> a big
>> bolt and nut, though they are cylindrical with wrench flats on them
>> so
>> they're easier to use. The idea is that the two parts are screwed
>> together
>> with the tightening direction going in the direction you need to
>> turn the
>> cup. When they are hell for tight, turning the tool will naturally
>> tighten
>> and at the same time it will turn the cup. That is, when the gripping
>> force of the tool is greater than the hold between the frame and cup.
>>
>> If that doesn't work for you, after removing the rest of the BB,
>> you could
>> take it to a welder and have a lever welded to the cup. The heat of
>> a TIG
>> or MIG would possibly help in breaking the bond between the two
>> pieces and
>> hopefully not burn the paint.
>>
>> I hope that's helpful.
>>
>> Chuck Hoefer
>> Pacific Coast Cycles
>> Oceanside, Calif