Hi all, I am in the process of building a vintage road bike from the frame up. I just received this from eBay today. I strongly suspect it's a Paramount of Mansfield frame that's been repainted at some point. Campy dropouts, wrap over seat stays, drilled bb and the like. It's also nice and light at 1.9kg minus the forks. I removed the modernish 105 headset ready for it to be painted. Unfortunately the headset cups both top and bottom came out with very little effort, only a gentle pull with my fingers. I've tried another headset and the cups seemed the same I feel like a jolt would knock them out with no effort. Any ideas if this can be safely fixed? I have also noticed some wear to the threads on one side of the steerer tube, all parts of the headset thread on nicely though?