Hi! I'm quite new to collecting pens, but trying to learn as much as I can. I've recently inherited a couple Mont Blanc fountain pens, and I'm having some issues with one of them - a 342. It's been working just fine for the last 6 months, but recently when I tried to unscrew the cap, the gripping section stayed in the cap, while the body came out - leaving the reservoir open. Since then I haven't been able get the front bit out of the cap. Is there any way of doing this yourself, or do I have to hand it in to professionals? Thanks a lot in advance!