sjcprojects
Orange 🍊 Fan
I have a frame with a very stuck Mavic 610 BB, which is an unthreaded BB - the only threaded parts are the outer ends which stick outside the BB shell which the lockrings thread onto. Once the lockrings are off, it should be loose in the frame and just come out. Unsurprisingly given the state of the frame, instead the BB seems to have bonded itself rather nicely inside the BB shell.
I've put some penetrating oil (WD40 brand) down the seat tube, and given it a whack with a mallet from both sides, but no movement at all so far. I suppose I could try putting one of the threaded ends into a vice and try turning the frame to get some rotational force on it - which would almost certainly damage the threads (though saving the BB is unlikely anyway, I guess) - but I'm very doubtful it would give enough purchase to do that.
The problem is that there's no way of getting any sort of tool onto anything. I guess I'll have to resort to getting my local frame repair guy to heating it up to get it out, but I just wondered if anyone might have any other ideas...is it worth trying Plusgas or similar?
I've put some penetrating oil (WD40 brand) down the seat tube, and given it a whack with a mallet from both sides, but no movement at all so far. I suppose I could try putting one of the threaded ends into a vice and try turning the frame to get some rotational force on it - which would almost certainly damage the threads (though saving the BB is unlikely anyway, I guess) - but I'm very doubtful it would give enough purchase to do that.
The problem is that there's no way of getting any sort of tool onto anything. I guess I'll have to resort to getting my local frame repair guy to heating it up to get it out, but I just wondered if anyone might have any other ideas...is it worth trying Plusgas or similar?