Dear Tom,
I believe that Hillary Stone answered this one for me several months ago. Rather than gripping the outside of the cup, I used a large bolt and large nut from the inside. Personally, I used a lug bolt from a Ford Taurus. The flat of the bolt is slightly curved which I think concentrates the gripping power. Under that I put a stout flat washer. On the other side of the cup is the corresponding nut.
On regular thread items, the head of the bolt is inside the bottom bracket and the nut is outside the bottom bracket. Tighten them up and then have at it from the inside. The tightening of the bolt has a reasonably good chance of removing the cup without damage. I tried this on a a particularly seized Italian cup. Super tightened the bolt to the point where the washer actually began to bend and assume the shape of the cup. Although I failed in my efforts, I did not damage the cup. Later, I used a professional tool to remove it.
For less stubborn applications, I believe it will work. Incidentally, for left-hand thread, have the bolt on the outside of the botto to m bracket cup. Hope this helps.
Tom Witkop Rockville, Maryland
On Sun, 10 Nov 2002 15:07:33 -0500 Tom Hayes <hayesbikes@mail.nls.net>
writes:
> Anyone have a make-shift tool they have used for the removal of a
> fixed cup
> that has three slots in it? None of the bottom bracket tools I
> have--the
> peg portion of the tool--fit securely enough into a slot or all
> three slots
> so that it won't slip out. My only solution involves a punch and
> hammer,
> and in doing that, I know the slots will become rounded or smashed.
> What
> I'm wondering is whether any list member have discovered some sort
> of
> solution to this, beyond the hammer and punch routine--some sort of
> pliers
> or channel lock or pipe wrench or whatever-- and if he or she would
> share
> the experience with me.
>
> The fixed cup is on a sixties frame and I think the bottm bracket is
> a
> Magistroni (at least the crank is).
>
> Thank you.
>
> Cheers.
>
> Tom
>
> Tom Hayes
> 18585 Munn Road
> Chagrin Falls, Ohio 44023
> hayesbikes@nls.net
> hayes@jcu.edu
>
>
> _______________________________________________
>
________________________________________________________________ Sign Up for Juno Platinum Internet Access Today Only $9.95 per month! Visit http://www.juno.com