I'm having trouble removing the left cup on an Ariel (1895) bottom bracket. I removed the crank arm, lock nut and keyed washer without incident. However the adjustable bearing cup has a very small knurled edge that I can't get a grip on. I've soaked the threads in Kroil with no luck. I'm reluctant to start hitting the edge with a punch and hammer. I have little experience with antique bikes so I'm looking for some advice.
Thanks!
Thanks!