Bicycle Mechanics - Removing a Front Derailleur with a Stripped Bolt
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09-13-05, 10:53 AM
I'm upgrading an old SRAM 5 front derailleur and the mounting bolt just spins and spins. The head of the bolt is fine, but as a good chunk of this cheapie FD is plastic, I have a feeling the bolt is OK but it's stripped the part it's stuck into.
I'm familiar with the "Easy Off" type drill bits, but it looks like those are needed when the head of a bolt or screw is stripped. Would I/could I use a product like that in this case, or is there a better method?
The FD can be destroyed, so preserving the part is not a requirement.
09-13-05, 10:59 AM
It's funny, I grabbed my hacksaw and "sampled" a couple of positions to attack it, and I didn't really find one where I felt comfortable that I wouldn't hurt myself or the bike. But it will stand for the moment as my last resort.
How about just using a blade on the bolt where the two clamp parts come together? Have you tried wedging the clamp with a screwdriver while turning the bolt or pushing on the end of the bolt if exposed while turning.
09-13-05, 11:14 AM
I think that I'd put a cutting wheel on my Dremel and start whittling away.
09-13-05, 12:03 PM
How about just using a blade on the bolt where the two clamp parts come together?
That may be my best bet - the problem I've encountered is that the two clamp parts come together on a bias, and getting something in there with any amount of leverage has been tricky with the suspension linkage (and I certainly didn't want to start taking that apart if I didn't have to).
I'll just need to poke around for something sharp but relatively short. Of course, I wouldn't mind an excuse to get a Dremel....
I wouldn't mind an excuse to get a Dremel....
Thanks allWorks for home dentistry too.
09-13-05, 12:16 PM
Dremel rocks, that and my Milwaukee Sawzall are two of my most used tools.
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