The Ptfe tube is likely the answer, if you can replace I recommend trying to. Make sure it is seated correctly and properly clamped in place when you’re putting it back together.

Good luck!

Maybe an AI wrote it. 🥸

Outstanding work! Did you have previous experience with Fusion360 and modeling?

For some reason the working photo didn’t come through for me (on wefwef client).

(edit: it’s a video/clip - maybe wefwef can’t handle that yet)