funny noise on my mk3+s extruder  

funny noise on my mk3+s extruder

During Live Adjust Z calibration it was laying down the filiment  at -1.175. But after a brief run of 7 or 8 perfect prints it crashed due to y calibration error. 

So after recalibrating using the wizard option I noticed that it wasnt laying down the print lines without a thin line of filiment and a little blob right after the test line prior to printing. So I unloaded the filiment opened the extruder door and removed a small bit of filiment. Then I did a cold pull on it and thought it should be good. But a vibrating noise coming from the extruder coupled with a weird rough sound during printing. I noticed that quite a few alan bolts were loose all over the printer. I didnt tighten the bolts I assumed affected the XY and Z belts. figured they would need some special process or torque wrech or what have you to mess with.

Any thoughts on whats been asked here while I figure out how to post a link the video took of it?

Is -1.175 to -1.200 sound like a proper LA Z setting?

Any help with these questions will be greatly appreciated.

Thanks for now an