Round II was much more productive. Ball joint splitter seemed to loosen the crank, aided by lots of WD40. It still wouldn't just pop off, but it was just a case of wiggling the crank until it worked itss way off the spindle completely. Hope this helps someone else!
As for the BB, it had six notches on either side and tapping one of the notches with a chisel (I only have an 8 notch tool) made the whole BB spin inside the shell. I managed to wedge it on one side against a crank and then undo the other side by hand. Once the cap had been removed on one side the BB slid out.
Update:
Round II was much more productive. Ball joint splitter seemed to loosen the crank, aided by lots of WD40. It still wouldn't just pop off, but it was just a case of wiggling the crank until it worked itss way off the spindle completely. Hope this helps someone else!
As for the BB, it had six notches on either side and tapping one of the notches with a chisel (I only have an 8 notch tool) made the whole BB spin inside the shell. I managed to wedge it on one side against a crank and then undo the other side by hand. Once the cap had been removed on one side the BB slid out.
Time to hunt for a new threadless BB.