I have been digging through my box of "needs work" Parker 51's. Several have sprung clips, or a clip pulled away from the cap.

Is there an easy fix?

The most detail I have found on-line is that the jewel screws into a clip holder, which secures the clip by screwing into the cap / inner cap. Does this mean that to get the clip off the cap it is necessary first to pull the jewel? And then the piece into which the jewel screws?

I've seen discussions about the best tool and method for removing the jewel. Looks like tricky business. Is it necessary just to get at the clip?