I am trying to remove a b/b from my Look road bike (british thread) but am having problems. I have managed to get the crank arms off but the bottom bracket is a bit of a mystery. It doesn't help that the b/b bracket is made by a small manufacturer from Germany called Tune. To give you an idea of the setup, see these pictures:
This is Tune's image of the b/b
Here's what I've tried to do:
1. There are holes in the cup, so it would make sense that you put a pin spanner in two of the holes and turn anti-clockwise on the Left (non-drive) side to loosen. There seemed to be a lot of resistance when I attempted this and as I didn't want to damage anything I backed off.
2. Sprayed penetrating fluid (wd40) around the cup in case it's seized/stuck. Lightly tapped around the area to further aid any seizing.
3. I have looked at Park's repair guides and Todd Down's book but they really don't go into much detail about removing anything other than Shimano/Campag. I have also contacted the manufacturer so maybe something will turn up there (still waiting).
From the Tune b/b image above, it looks as though both cups twist off. Anyone got any advice?