Grease those gears in the pic... also the parts that fell out on you, put dabs if not dollops of grease on those as well.
There will always be a noise from those gears. It's the nature of the beast. Also, it depends on the quality of your clutch disk. Super loose will make more noise vs home rebuilt ones vs stock etc. I rebuilt mine with SS ball bearings and lots of sanding / milling and it's a lot less noisy than it used to be, but that's not an option for everyone.