Michael- I posted a few weeks ago about aluminum pivot pins and their replacement. If the pivot action is smooth and complete I would not take them apart. Only if there was a problem would I do that again. I do wonder if the steel pins (or the links and body holes) would be damaged during removal and whether the pins would be reusable.
>I just picked up a rear N.R. derailleur with "Patent", no date, stamped on
>top. The cage spring housing stop is brazed to the housing, rather than
>cast in. The piece appears to be fully functional, but the bolts & logo
>plate are scuffed. I'm wondering if it would be worth replacing the
>cosmetically rough part of the parallelogram with a perfect one from a
>later derailleur, or whether there is some sort of value to leaving it as
>is. Also, does anybody have experience driving out the steel pivot pins?
>Before I whale away at the poor innocent thing, I'd love to hear from
>somebody who been successful at removing them. If you've been unsuccessful,
>that might be a lot more interesting to read!
> Michael Shiffer
> EuroMeccanica, Inc.
> 114 Pearl Street
> Mount Vernon, NY 10550
> (914) 668-1300
> euromeccanicany.com
>
>
>
> _______________________________________________
Andrew R Stewart
Rochester, NY