Bolex B8 Repair question

[Johnny Liu]

Hi,  I was taking apart my Bolex B8 to lubricate it and after I took off the front plate, a small spring and a small plunger-like part fell out.  Can anyone identify where this spring and plunger are supposed to be seated?  Thanks!
 

 

Edited December 10, 2025 by Johnny Liu

[Simon Wyss]

Where I sketched an orange arrow, the rest for the function selector disc.

[Johnny Liu]

Simon,  thank you so much!  I would have not figured that out.  I would have had to taken apart another one of my Bolexes to figure it out!